[libc++][RFC] Disable incomplete library features.

[Mordante]

Summary

At the moment the implementation of std::format is incomplete and
there will be ABI breaking changes in the future:

• Some shortcuts were taken to get a working basic version. Resolving these shortcuts will cause ABI breaking changes. For example the storage of the formatting arguments is currently done in a simple fashion leading to inefficient memory usage. Improving this is required by the Standard. However validating the required implementation is easier with the basics of std::format working. At that point there are proper tests to guard against regressions.
• The C++ committee accepts LWG issues that contain ABI breaks. For example http://wg21.link/P2216.

As long as a Standard isn't ratified libc++ makes no promises on ABI
stability for new features. After a Standard is ratified there's no good
way for libc++ to communicate to its users a feature isn't complete yet.
This is now the case with std::format, but the same may occur in the
future with other 'monolithic' features. For example, when Networking TS
will become part of the Standard.

This is a RFC to see how we can solve this problem. It aims to:

• Make it possible to develop high quality implementations in main, while not being afraid to make ABI breaking changes to improve the implementation.
• Make it possible to work on large features in main that can't be completed in one LLVM release cycle.
• Warn users when using not Standard conforming code.
• Warn users when using ABI unstable features.

Obviously using this escape hatch isn't ideal and when possible we
should attempt to avoid it.

In theory there's a simple solution. C++ has feature test macros that
allows users to query whether a feature is complete. However it's
uncertain whether users use this macro or just try to compile the code
and if it compiles they expect it to behave properly.

The current implementation in <format> uses #error this has the
advantage that including the header gives a nice diagnostic. For other
headers it might be better to only guard certain features. For example,
when the C++ committee's ABI break only affects a single function it's
possible to only disable this function. In that case there will be no
clear diagnostic how to enable the feature.

[ldionne]

I think this is pretty interesting. We could do the same for ranges.

[Mordante]

Yes we can do the same for ranges.
I think that partly boils down to what kind of errors we want to give the user, a clear diagnostic explaining how to opt-in to the feature.
Or a less clear message due to a not implemented algorithm.
I know there are some ABI breaking ranges papers retroactively accepted in the June plenary, I don't know whether these ABI breaking changes will affect libc++.

@cjdb @zoecarver is our ranges implementation in main affected by the ABI breaking papers accepted in the June plenary?

[Mordante]

Add a macro for the <ranges> header.
Note still need to adjust the test runners to enable the incomplete features by default.

[ldionne]

In D106763#2904182, @Mordante wrote:

@cjdb @zoecarver is our ranges implementation in main affected by the ABI breaking papers accepted in the June plenary?

I don't think there's any remaining ABI breaks to be performed because of changes in the spec, however we still want to reserve the right for ABI breaks for a little bit. For example, I'm not sure the ABI for non-propagating-cache is final.

I actually gave more thought to this, and I think what we want is:

1. Add a macro in __config_site like _LIBCPP_HAS_NO_INCOMPLETE_FEATURES.
2. Add a CMake option LIBCXX_ENABLE_INCOMPLETE_FEATURES that sets this macro in __config_site. By default, that option should be set to ON so that we enable incomplete features by default.
3. Add a macro in features.py like: '_LIBCPP_HAS_NO_INCOMPLETE_FEATURES': 'libcpp-has-no-incomplete-features', and mark the relevant tests as UNSUPPORTED.
4. Set set(LIBCXX_ENABLE_INCOMPLETE_FEATURES OFF CACHE BOOL "") in Apple.cmake.

That way, incomplete features are always enabled by default (i.e. the current state of things). Enabling them does not require any specific action. However, when we want to ship libc++ (as a vendor or as part of the LLVM distribution), we can disable the incomplete features when configuring CMake.

The benefits of doing it that way is that it's better integrated with the rest of the code -- that's how we disable all kinds of other features. Also, it's not clear to me that we want to give users the ability to override this option. It's not like using something in std::experimental, it's really more like using something that isn't fully baked yet.

If you agree and we go in that direction, we should also move the documentation for the option to BuildingLibcxx.rst, which is aimed at vendors instead of end-users.

libcxx/include/ranges

187

[Mordante]

Thanks for your feedback, this is exactly the kind of feedback I hoped to get for this RFC!

I actually gave more thought to this, and I think what we want is:

1. Add a macro in __config_site like _LIBCPP_HAS_NO_INCOMPLETE_FEATURES.

Initially I went this path, but I wasn't too happy with it. I split it in one macro for format and one macro for ranges. This means there will be libcpp-has-no-incomplete-ranges and libcpp-has-no-incomplete-format. I prefer two different names. Once one feature is completed it's a lot easier to grep whether all occurrences have been removed.

2. Add a CMake option LIBCXX_ENABLE_INCOMPLETE_FEATURES that sets this macro in __config_site. By default, that option should be set to ON so that we enable incomplete features by default.
3. Add a macro in features.py like: '_LIBCPP_HAS_NO_INCOMPLETE_FEATURES': 'libcpp-has-no-incomplete-features', and mark the relevant tests as UNSUPPORTED.
4. Set set(LIBCXX_ENABLE_INCOMPLETE_FEATURES OFF CACHE BOOL "") in Apple.cmake.

I prefer to have some Apple CI bots to override this default. That way we can validate whether the feature would work on Apple. Otherwise when we flip the switch we get all Apple build issues at the same time. I was thinking about using MacOS x86_64 and MacOS arm64. WDYT?

That way, incomplete features are always enabled by default (i.e. the current state of things). Enabling them does not require any specific action. However, when we want to ship libc++ (as a vendor or as part of the LLVM distribution), we can disable the incomplete features when configuring CMake.

The benefits of doing it that way is that it's better integrated with the rest of the code -- that's how we disable all kinds of other features. Also, it's not clear to me that we want to give users the ability to override this option. It's not like using something in std::experimental, it's really more like using something that isn't fully baked yet.

If you agree and we go in that direction, we should also move the documentation for the option to BuildingLibcxx.rst, which is aimed at vendors instead of end-users.

I like this direction, it refines the general direction of the original proposal.

[Mordante]

Addresses the review comments.
The documentation will be done in a follow-up.
Want to get some feedback of the CI first.

[Mordante]

libcxx/CMakeLists.txt

127

Update documentation.

libcxx/benchmarks/dummy.cpp

4 ↗

(On Diff #361946)

Remove this file after the CI passes.

libcxx/docs/BuildingLibcxx.rst

402

Update documentation.

libcxx/docs/Contributing.rst

73

Update documentation. Note I might revert this hunk and do it in a separate patch when that means we can get this patch is before branching LLVM 13.

[Mordante]

Temporary disable canceling a build after a failure.
Just to get the status of the other builds.

[Mordante]

Attempt to fix the Apple build.
Remove the dummy benchmark since the build has passed.

[Mordante]

In D106763#2906698, @Mordante wrote:

4. Set set(LIBCXX_ENABLE_INCOMPLETE_FEATURES OFF CACHE BOOL "") in Apple.cmake.

I prefer to have some Apple CI bots to override this default. That way we can validate whether the feature would work on Apple. Otherwise when we flip the switch we get all Apple build issues at the same time. I was thinking about using MacOS x86_64 and MacOS arm64. WDYT?

Based on the build failures I got I had a look at the configuration and it actually seems these two nodes already exactly do that.
So you can ignore this comment.

[Mordante]

Attempt to fix all build issues.

[Mordante]

Restore default CI building
Fix build tests
Improve documentation

[Mordante]

There're still a few design choices to be evaluated. After deciding they can be implemented and the documentation updated accordingly.

[Mordante]

As clarified on Discord made the feature a build-time only configuration.
The documentation still needs to be updated.

[Mordante]

I will update the Buiding documentation after the current build is finished.
I want to update the contributor part for the incomplete features in a separate patch. It makes sense to do that after we're certain about the approach. Normally I wouldn't mind an extra iteration too much, but in this case I prefer to land the real patch as soon as possible so it can be in RC1.

libcxx/docs/BuildingLibcxx.rst

402

@ldionne Is it intended these options are documented? There seem to be quite some missing options. For example LIBCXX_ENABLE_RANDOM_DEVICE and LIBCXX_ENABLE_LOCALIZATION

[Mordante]

Update the documentation.
Rebased against main.

[ldionne]

Thanks a lot for this! That's exactly what I had in mind.

The fact that we changed the Apple.cmake cache means that we already have a tester for this configuration, so no need to add one.

Once the LLVM 13 branch is cut, I'll cherry-pick a change that passes LIBCXX_ENABLE_INCOMPLETE_FEATURES=OFF on the release branch (so that LLVM 13 doesn't ship half-implemented features). In the future, it would be even better to consider the LLVM distribution as being a "vendor" and have a "vendor specific" cache for it (that would be used when building LLVM for releasing). We'd set LIBCXX_ENABLE_INCOMPLETE_FEATURES=OFF in that cache.

libcxx/docs/BuildingLibcxx.rst

402

Oh yeah, the documentation is not up to date in that respect. I'm actually thinking that it's quite bad that there's so much duplication (here and in the CMakeLists.txt). Since this is aimed at vendors, perhaps we could have a single copy of those options in the CMakeLists.txt and have the documentation point to that? If we grouped configure-time options together, it would make them discoverable. Just a thought.

libcxx/include/format

64

Maybe this should say something like The Format library is not complete and stable yet, so this configuration of libc++ does not allow its usage.. Or anything else that explains a bit _why_ it's not supported (otherwise users tend to be angry).

[Mordante]

libcxx/docs/BuildingLibcxx.rst

402

I agree it would be nice if there was an automatic way to convert the CMake options to restructured text.

libcxx/include/format

64

I'm not objecting against making the text a bit more verbose. I just looked at what similar code did. I'll make a separate patch to improve these places.

[• Quuxplusone]

FWIW, my general reaction is that this patch does more harm (to end-users) than good. But (1) it's above my pay grade, and (2) from the end-user's perspective, Clang 13 won't be any less featureful than Clang 12; it'll just be more self-deprecatingly whiny about its continued lack of features.

Consider that __has_include(<format>) will now return the "wrong" value; it would be better and simpler if you could just figure out a way to stop the build system from installing that header in include/c++/v1/ at all. However, this is not a new problem: e.g., __has_include(<variant>) already has the "wrong" value in C++03/11/14 mode; we definitely have no way to fix that.

libcxx/include/format

64

#error "This configuration of libc++ was built without support for C++20 <format> because its ABI is not yet stable."
and below
#error "This configuration of libc++ was built without support for C++20 <ranges> because its ABI is not yet stable."

[Mordante]

Update the error message.

[ldionne]

In D106763#2908310, @Quuxplusone wrote:

FWIW, my general reaction is that this patch does more harm (to end-users) than good.

How so? If we don't do something like this, we'll let users use incomplete and unstable features, and then we'll break them in the future. I don't see how that's acceptable?

Consider that __has_include(<format>) will now return the "wrong" value; it would be better and simpler if you could just figure out a way to stop the build system from installing that header in include/c++/v1/ at all.

Honestly, using __has_include to check for features is already broken enough as it is, I don't think this makes it any worse. People need to learn that they can't use it that way, period.

[Mordante]

In D106763#2908310, @Quuxplusone wrote:

FWIW, my general reaction is that this patch does more harm (to end-users) than good. But (1) it's above my pay grade, and (2) from the end-user's perspective, Clang 13 won't be any less featureful than Clang 12; it'll just be more self-deprecatingly whiny about its continued lack of features.

It makes it possible for vendors to avoid shipping ABI unstable features to their customers. This gives us the freedom the break the ABI in our <ranges> implementation when that gives us the opportunity to create a better implementation.

Consider that __has_include(<format>) will now return the "wrong" value; it would be better and simpler if you could just figure out a way to stop the build system from installing that header in include/c++/v1/ at all. However, this is not a new problem: e.g., __has_include(<variant>) already has the "wrong" value in C++03/11/14 mode; we definitely have no way to fix that.

IMO __has_include(<variant>) is the wrong tool for the job. If a user wants to to test the status of the headers they can use __has_include(<version>) and when that's available test the appropriate feature-test macro.

libcxx/include/format

64

I read this message after committing.
I settled with a slightly different wording with @ldionne, it now shows which configuration option disabled the header.

[Mordante]

In D106763#2908310, @Quuxplusone wrote:

Consider that __has_include(<format>) will now return the "wrong" value; it would be better and simpler if you could just figure out a way to stop the build system from installing that header in include/c++/v1/ at all. However, this is not a new problem: e.g., __has_include(<variant>) already has the "wrong" value in C++03/11/14 mode; we definitely have no way to fix that.

IMO __has_include(<variant>) is the wrong tool for the job. If a user wants to to test the status of the headers they can use __has_include(<version>) and when that's available test the appropriate feature-test macro.

@Quuxplusone It seem http://wg21.link/SD6 recommends this practice. D107134 should allow this usage pattern.

libcxx/CMakeLists.txt

option(LIBCXX_ENABLE_LOCALIZATION
    will be completely unusable, and other parts may be only partly available." ON)
 option(LIBCXX_ENABLE_VENDOR_AVAILABILITY_ANNOTATIONS
   "Whether to turn on vendor availability annotations on declarations that depend
    on definitions in a shared library. By default, we assume that we're not building
    libc++ for any specific vendor, and we disable those annotations. Vendors wishing
    to provide compile-time errors when using features unavailable on some version of
    the shared library they shipped should turn this on and see `include/__availability`
    for more details." OFF)
+option(LIBCXX_ENABLE_INCOMPLETE_FEATURES
+    "Whether to enable support for incomplete library features. Incomplete features
+    are new library features under development. These features don't guarantee
+    ABI stability nor the quality of completed library features. Vendors
+    shipping the library may want to disable this option." ON)
 set(LIBCXX_TEST_CONFIG "${CMAKE_CURRENT_SOURCE_DIR}/test/configs/legacy.cfg.in" CACHE STRING
     "The Lit testing configuration to use when running the tests.")
 set(LIBCXX_TEST_PARAMS "" CACHE STRING
     "A list of parameters to run the Lit test suite with.")
 
 # Benchmark options -----------------------------------------------------------
 option(LIBCXX_INCLUDE_BENCHMARKS "Build the libc++ benchmarks and their dependencies" ON)
 

 config_define_if(LIBCXX_BUILD_EXTERNAL_THREAD_LIBRARY _LIBCPP_HAS_THREAD_LIBRARY_EXTERNAL)
 config_define_if(LIBCXX_HAS_MUSL_LIBC _LIBCPP_HAS_MUSL_LIBC)
 config_define_if(LIBCXX_NO_VCRUNTIME _LIBCPP_NO_VCRUNTIME)
 config_define_if(LIBCXX_ENABLE_PARALLEL_ALGORITHMS _LIBCPP_HAS_PARALLEL_ALGORITHMS)
 config_define_if_not(LIBCXX_ENABLE_FILESYSTEM _LIBCPP_HAS_NO_FILESYSTEM_LIBRARY)
 config_define_if_not(LIBCXX_ENABLE_RANDOM_DEVICE _LIBCPP_HAS_NO_RANDOM_DEVICE)
 config_define_if_not(LIBCXX_ENABLE_LOCALIZATION _LIBCPP_HAS_NO_LOCALIZATION)
 config_define_if_not(LIBCXX_ENABLE_VENDOR_AVAILABILITY_ANNOTATIONS _LIBCPP_HAS_NO_VENDOR_AVAILABILITY_ANNOTATIONS)
+# Incomplete features get their own specific disabling flags. This makes it
+# easier to grep for target specific flags once the feature is complete.
+config_define_if_not(LIBCXX_ENABLE_INCOMPLETE_FEATURES _LIBCPP_HAS_NO_INCOMPLETE_FORMAT)
+config_define_if_not(LIBCXX_ENABLE_INCOMPLETE_FEATURES _LIBCPP_HAS_NO_INCOMPLETE_RANGES)
 
 if (LIBCXX_ABI_DEFINES)
   set(abi_defines)
   foreach (abi_define ${LIBCXX_ABI_DEFINES})
     if (NOT abi_define MATCHES "^_LIBCPP_ABI_")
       message(SEND_ERROR "Invalid ABI macro ${abi_define} in LIBCXX_ABI_DEFINES")
     endif()
     list(APPEND abi_defines "#define ${abi_define}")

libcxx/cmake/caches/Apple.cmake

 set(CMAKE_BUILD_TYPE MinSizeRel CACHE STRING "")
 set(CMAKE_POSITION_INDEPENDENT_CODE OFF CACHE BOOL "")
 
 set(LIBCXX_USE_COMPILER_RT ON CACHE BOOL "")
 set(LIBCXX_ENABLE_ASSERTIONS OFF CACHE BOOL "")
 set(LIBCXX_ABI_VERSION "1" CACHE STRING "")
 set(LIBCXX_ENABLE_EXPERIMENTAL_LIBRARY OFF CACHE BOOL "")
 set(LIBCXX_ENABLE_STATIC ON CACHE BOOL "")
 set(LIBCXX_ENABLE_SHARED ON CACHE BOOL "")
 set(LIBCXX_CXX_ABI libcxxabi CACHE STRING "")
 set(LIBCXX_HIDE_FROM_ABI_PER_TU_BY_DEFAULT ON CACHE BOOL "")
 set(LIBCXX_ENABLE_DEBUG_MODE_SUPPORT OFF CACHE BOOL "")
 set(LIBCXX_ENABLE_VENDOR_AVAILABILITY_ANNOTATIONS ON CACHE BOOL "")
+set(LIBCXX_ENABLE_INCOMPLETE_FEATURES OFF CACHE BOOL "")
 
 set(LIBCXX_HERMETIC_STATIC_LIBRARY ON CACHE BOOL "")
 set(LIBCXXABI_HERMETIC_STATIC_LIBRARY ON CACHE BOOL "")
 
 set(LIBCXXABI_ENABLE_ASSERTIONS OFF CACHE BOOL "")
 set(LIBCXXABI_ENABLE_FORGIVING_DYNAMIC_CAST ON CACHE BOOL "")

libcxx/docs/BuildingLibcxx.rst

.. option:: LIBCXX_HIDE_FROM_ABI_PER_TU_BY_DEFAULT:BOOL
 
   **Default**: ``OFF``
 
   Pick the default for whether to constrain ABI-unstable symbols to
   each individual translation unit. This setting controls whether
   `_LIBCPP_HIDE_FROM_ABI_PER_TU_BY_DEFAULT` is defined by default --
   see the documentation of that macro for details.
 
+.. option:: LIBCXX_ENABLE_INCOMPLETE_FEATURES:BOOL
+
+  **Default**: ``ON``
+
+  PLACEHOLDER
 
 libc++ ABI Feature Options
 --------------------------
 
 The following options allow building libc++ for a different ABI version.
 
 .. option:: LIBCXX_ABI_VERSION:STRING
 

libcxx/docs/Contributing.rst

 Apple.  If you don't have access to one of these platforms, you can download an
 updated list from the failed build at
 `Buildkite <https://buildkite.com/llvm-project/libcxx-ci>`__.
 Look for the failed build and select the ``artifacts`` tab. There, download the
 abilist for the platform, e.g.:
 
 * C++20 for the Linux platform.
 * MacOS C++20 for the Apple platform.
+
+Working on large features
+=========================
+
+PLACEHOLDER: describe the incomplete feature flags after the work has been completed.

libcxx/docs/UsingLibcxx.rst

**_LIBCPP_DISABLE_NODISCARD_EXT**:
   for more information.
 
 **_LIBCPP_DISABLE_DEPRECATION_WARNINGS**:
   This macro disables warnings when using deprecated components. For example,
   using `std::auto_ptr` when compiling in C++11 mode will normally trigger a
   warning saying that `std::auto_ptr` is deprecated. If the macro is defined,
   no warning will be emitted. By default, this macro is not defined.
 
+
 C++17 Specific Configuration Macros
 -----------------------------------
 **_LIBCPP_ENABLE_CXX17_REMOVED_FEATURES**:
   This macro is used to re-enable all the features removed in C++17. The effect
   is equivalent to manually defining each macro listed below.
 
 **_LIBCPP_ENABLE_CXX17_REMOVED_AUTO_PTR**:
   This macro is used to re-enable `auto_ptr`.

libcxx/include/__config_site.in

 #cmakedefine _LIBCPP_HAS_NO_VENDOR_AVAILABILITY_ANNOTATIONS
 #cmakedefine _LIBCPP_NO_VCRUNTIME
 #cmakedefine _LIBCPP_TYPEINFO_COMPARISON_IMPLEMENTATION @_LIBCPP_TYPEINFO_COMPARISON_IMPLEMENTATION@
 #cmakedefine _LIBCPP_ABI_NAMESPACE @_LIBCPP_ABI_NAMESPACE@
 #cmakedefine _LIBCPP_HAS_NO_FILESYSTEM_LIBRARY
 #cmakedefine _LIBCPP_HAS_PARALLEL_ALGORITHMS
 #cmakedefine _LIBCPP_HAS_NO_RANDOM_DEVICE
 #cmakedefine _LIBCPP_HAS_NO_LOCALIZATION
+#cmakedefine _LIBCPP_HAS_NO_INCOMPLETE_FORMAT
+#cmakedefine _LIBCPP_HAS_NO_INCOMPLETE_RANGES
 
 @_LIBCPP_ABI_DEFINES@
 
 #endif // _LIBCPP_CONFIG_SITE

libcxx/include/format

 
 */
 
 #include <__config>
 #include <__format/format_error.h>
 #include <__format/format_parse_context.h>
 #include <version>
 
+#if defined(_LIBCPP_HAS_NO_INCOMPLETE_FORMAT)
+# error "The Format library is not supported by this configuration of libc++"
+#endif
+
 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
 #  pragma GCC system_header
 #endif
 
 _LIBCPP_PUSH_MACROS
 #include <__undef_macros>
 
 _LIBCPP_BEGIN_NAMESPACE_STD

libcxx/include/ranges

 #include <__ranges/transform_view.h>
 #include <__ranges/view_interface.h>
 #include <compare>          // Required by the standard.
 #include <initializer_list> // Required by the standard.
 #include <iterator>         // Required by the standard.
 #include <type_traits>
 #include <version>
 
+#if defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES)
+# error "The Ranges library is not supported by this configuration of libc++"
+#endif
+
 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
 #pragma GCC system_header
 #endif
 
 _LIBCPP_PUSH_MACROS
 #include <__undef_macros>
 
 _LIBCPP_BEGIN_NAMESPACE_STD

libcxx/src/CMakeLists.txt

 set(LIBCXX_LIB_CMAKEFILES_DIR "${CMAKE_CURRENT_BINARY_DIR}${CMAKE_FILES_DIRECTORY}"  PARENT_SCOPE)
 
 # Get sources
 set(LIBCXX_SOURCES
   algorithm.cpp
   any.cpp
   atomic.cpp
   barrier.cpp
   bind.cpp
   charconv.cpp
   chrono.cpp
   condition_variable.cpp
   condition_variable_destructor.cpp
   exception.cpp
-  format.cpp
   functional.cpp
   future.cpp
   hash.cpp
   include/apple_availability.h
   include/atomic_support.h
   include/config_elast.h
   include/refstring.h
   memory.cpp
list(APPEND LIBCXX_SOURCES
     ios.instantiations.cpp
     iostream.cpp
     locale.cpp
     regex.cpp
     strstream.cpp
     )
 endif()
 
+if(LIBCXX_ENABLE_INCOMPLETE_FEATURES)
+  list(APPEND LIBCXX_SOURCES
+    format.cpp
+  )
+endif()
+
 if(WIN32)
   list(APPEND LIBCXX_SOURCES
     support/win32/locale_win32.cpp
     support/win32/support.cpp
     )
 
   if (NOT LIBCXX_HAS_PTHREAD_API)
     list(APPEND LIBCXX_SOURCES

libcxx/test/libcxx/double_include.sh.cpp

 #include <errno.h>
 #include <exception>
 #include <execution>
 #include <fenv.h>
 #ifndef _LIBCPP_HAS_NO_FILESYSTEM_LIBRARY
 #    include <filesystem>
 #endif
 #include <float.h>
-#include <format>
+#ifndef _LIBCPP_HAS_NO_INCOMPLETE_FORMAT
+#    include <format>
+#endif
 #include <forward_list>
 #ifndef _LIBCPP_HAS_NO_LOCALIZATION
 #    include <fstream>
 #endif
 #include <functional>
 #ifndef _LIBCPP_HAS_NO_THREADS
 #    include <future>
 #endif

 #include <numbers>
 #include <numeric>
 #include <optional>
 #ifndef _LIBCPP_HAS_NO_LOCALIZATION
 #    include <ostream>
 #endif
 #include <queue>
 #include <random>
-#include <ranges>
+#ifndef _LIBCPP_HAS_NO_INCOMPLETE_RANGES
+#    include <ranges>
+#endif
 #include <ratio>
 #ifndef _LIBCPP_HAS_NO_LOCALIZATION
 #    include <regex>
 #endif
 #include <scoped_allocator>
 #ifndef _LIBCPP_HAS_NO_THREADS
 #    include <semaphore>
 #endif

libcxx/test/libcxx/inclusions/ranges.inclusions.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
 // WARNING: This test was generated by generate_header_inclusion_tests.py
 // and should not be edited manually.
 //
 // clang-format off
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // <ranges>
 
 // Test that <ranges> includes all the other headers it's supposed to.
 
 #include <ranges>
 #include "test_macros.h"
 

libcxx/test/libcxx/min_max_macros.compile.pass.cpp

 #include <fenv.h>
 TEST_MACROS();
 #ifndef _LIBCPP_HAS_NO_FILESYSTEM_LIBRARY
 #    include <filesystem>
 TEST_MACROS();
 #endif
 #include <float.h>
 TEST_MACROS();
-#include <format>
+#ifndef _LIBCPP_HAS_NO_INCOMPLETE_FORMAT
+#    include <format>
 TEST_MACROS();
+#endif
 #include <forward_list>
 TEST_MACROS();
 #ifndef _LIBCPP_HAS_NO_LOCALIZATION
 #    include <fstream>
 TEST_MACROS();
 #endif
 #include <functional>
 TEST_MACROS();

 #ifndef _LIBCPP_HAS_NO_LOCALIZATION
 #    include <ostream>
 TEST_MACROS();
 #endif
 #include <queue>
 TEST_MACROS();
 #include <random>
 TEST_MACROS();
-#include <ranges>
+#ifndef _LIBCPP_HAS_NO_INCOMPLETE_RANGES
+#    include <ranges>
 TEST_MACROS();
+#endif
 #include <ratio>
 TEST_MACROS();
 #ifndef _LIBCPP_HAS_NO_LOCALIZATION
 #    include <regex>
 TEST_MACROS();
 #endif
 #include <scoped_allocator>
 TEST_MACROS();

libcxx/test/libcxx/no_assert_include.compile.pass.cpp

 #include <errno.h>
 #include <exception>
 #include <execution>
 #include <fenv.h>
 #ifndef _LIBCPP_HAS_NO_FILESYSTEM_LIBRARY
 #    include <filesystem>
 #endif
 #include <float.h>
-#include <format>
+#ifndef _LIBCPP_HAS_NO_INCOMPLETE_FORMAT
+#    include <format>
+#endif
 #include <forward_list>
 #ifndef _LIBCPP_HAS_NO_LOCALIZATION
 #    include <fstream>
 #endif
 #include <functional>
 #ifndef _LIBCPP_HAS_NO_THREADS
 #    include <future>
 #endif

 #include <numbers>
 #include <numeric>
 #include <optional>
 #ifndef _LIBCPP_HAS_NO_LOCALIZATION
 #    include <ostream>
 #endif
 #include <queue>
 #include <random>
-#include <ranges>
+#ifndef _LIBCPP_HAS_NO_INCOMPLETE_RANGES
+#    include <ranges>
+#endif
 #include <ratio>
 #ifndef _LIBCPP_HAS_NO_LOCALIZATION
 #    include <regex>
 #endif
 #include <scoped_allocator>
 #ifndef _LIBCPP_HAS_NO_THREADS
 #    include <semaphore>
 #endif

libcxx/test/libcxx/ranges/range.adaptors/range.copy.wrap/assign.copy.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // <copyable-box>& operator=(<copyable-box> const&)
 
 // ADDITIONAL_COMPILE_FLAGS: -Wno-self-assign-overloaded
 
 #include <ranges>
 
 #include <cassert>

libcxx/test/libcxx/ranges/range.adaptors/range.copy.wrap/assign.move.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // <copyable-box>& operator=(<copyable-box>&&)
 
 // ADDITIONAL_COMPILE_FLAGS: -Wno-self-move
 
 #include <ranges>
 
 #include <cassert>

libcxx/test/libcxx/ranges/range.adaptors/range.copy.wrap/ctor.default.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // <copyable-box>::<copyable-box>()
 
 #include <ranges>
 
 #include <cassert>
 #include <type_traits>
 #include <utility> // in_place_t

libcxx/test/libcxx/ranges/range.adaptors/range.copy.wrap/ctor.in_place.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // template<class ...Args>
 // explicit <copyable-box>::<copyable-box>(in_place_t, Args&& ...args);
 
 #include <ranges>
 
 #include <cassert>
 #include <type_traits>

libcxx/test/libcxx/ranges/range.adaptors/range.copy.wrap/deref.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // T& <copyable-box>::operator*()
 // T const& <copyable-box>::operator*() const
 
 #include <ranges>
 
 #include <cassert>
 #include <type_traits>

libcxx/test/libcxx/ranges/range.adaptors/range.copy.wrap/has_value.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // bool <copyable-box>::__has_value() const
 
 #include <ranges>
 
 #include <cassert>
 #include <type_traits>
 #include <utility> // in_place_t

libcxx/test/libcxx/ranges/range.adaptors/range.copy.wrap/no_unique_address.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // This test ensures that <copyable-box> behaves correctly when it holds an empty type.
 
 #include <ranges>
 
 #include <cassert>
 #include <utility>
 

libcxx/test/libcxx/ranges/range.adaptors/range.copy.wrap/properties.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // Test various properties of <copyable-box>
 
 #include <ranges>
 
 #include <optional>
 
 #include "types.h"

libcxx/test/libcxx/ranges/range.nonprop.cache/assign.copy.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // __non_propagating_cache& operator=(__non_propagating_cache const&);
 
 // ADDITIONAL_COMPILE_FLAGS: -Wno-self-assign
 
 #include <ranges>
 
 #include <cassert>

libcxx/test/libcxx/ranges/range.nonprop.cache/assign.move.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // __non_propagating_cache& operator=(__non_propagating_cache&&);
 
 // ADDITIONAL_COMPILE_FLAGS: -Wno-self-assign
 
 #include <ranges>
 
 #include <cassert>

libcxx/test/libcxx/ranges/range.nonprop.cache/constraints.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // template<class T>
 //  requires is_object_v<T>
 // class non-propagating-cache;
 
 #include <ranges>
 
 template<template<class...> class T, class ...Args>

libcxx/test/libcxx/ranges/range.nonprop.cache/ctor.copy.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // __non_propagating_cache(__non_propagating_cache const&);
 
 #include <ranges>
 
 #include <cassert>
 #include <type_traits>
 

libcxx/test/libcxx/ranges/range.nonprop.cache/ctor.default.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // __non_propagating_cache();
 
 #include <ranges>
 
 #include <cassert>
 #include <type_traits>
 

libcxx/test/libcxx/ranges/range.nonprop.cache/ctor.move.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // __non_propagating_cache(__non_propagating_cache&&);
 
 #include <ranges>
 
 #include <cassert>
 #include <type_traits>
 #include <utility>

libcxx/test/libcxx/ranges/range.nonprop.cache/deref.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // constexpr T const& operator*() const;
 // constexpr T& operator*();
 
 #include <ranges>
 
 #include <cassert>
 

libcxx/test/libcxx/ranges/range.nonprop.cache/has_value.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // constexpr bool __has_value() const;
 
 #include <ranges>
 
 #include <cassert>
 
 template <class T>

libcxx/test/libcxx/ranges/range.utility.helpers/different_from.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // <ranges>
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 #include <ranges>
 
 #include "test_macros.h"
 
 static_assert(std::__different_from<int, char>);
 static_assert(std::__different_from<const int, char>);
 static_assert(!std::__different_from<const int, int>);

libcxx/test/libcxx/ranges/range.utility.helpers/has_arrow.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // <ranges>
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 #include <ranges>
 
 #include "test_macros.h"
 
 struct simple_iter {
     typedef std::input_iterator_tag         iterator_category;
     typedef int                             value_type;

libcxx/test/libcxx/ranges/range.utility.helpers/simple_view.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // <ranges>
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 #include <ranges>
 
 #include "test_macros.h"
 #include "test_iterators.h"
 
 struct SimpleView : std::ranges::view_base {
   friend int* begin(SimpleView&);

libcxx/test/libcxx/ranges/version.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
+
 // <ranges>
 
 #include <ranges>
 
 #include "test_macros.h"
 
 #ifndef _LIBCPP_VERSION
 #error _LIBCPP_VERSION not defined
 #endif
 
 // Required for MSVC internal test runner compatibility.
 int main(int, char**) { return 0; }

libcxx/test/libcxx/utilities/format/version.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: libcpp-has-no-incomplete-format
+
 // <format>
 
 #include <format>
 
 #include "test_macros.h"
 
 #ifndef _LIBCPP_VERSION
 #  error _LIBCPP_VERSION not defined
 #endif
 
 // Required for MSVC internal test runner compatibility.
 int main(int, char**) { return 0; }

libcxx/test/std/containers/associative/map/range_concept_conformance.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // map
 
 #include <map>
 
 #include <concepts>
 #include <ranges>
 

libcxx/test/std/containers/associative/multimap/range_concept_conformance.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // multimap
 
 #include <map>
 
 #include <concepts>
 #include <ranges>
 

libcxx/test/std/containers/associative/multiset/range_concept_conformance.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // multiset
 
 #include <set>
 
 #include <concepts>
 #include <ranges>
 

libcxx/test/std/containers/associative/set/range_concept_conformance.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // set
 
 #include <set>
 
 #include <concepts>
 #include <ranges>
 

libcxx/test/std/containers/sequences/array/range_concept_conformance.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // array
 
 #include <array>
 
 #include <concepts>
 #include <ranges>
 

libcxx/test/std/containers/sequences/deque/range_concept_conformance.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // deque
 
 #include <deque>
 
 #include <concepts>
 #include <ranges>
 

libcxx/test/std/containers/sequences/forwardlist/range_concept_conformance.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // forward_list
 
 #include <forward_list>
 
 #include <concepts>
 #include <ranges>
 

libcxx/test/std/containers/sequences/list/range_concept_conformance.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // list
 
 #include <list>
 
 #include <concepts>
 #include <ranges>
 

libcxx/test/std/containers/sequences/vector.bool/range_concept_conformance.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // vector
 
 #include <vector>
 
 #include <concepts>
 #include <ranges>
 

libcxx/test/std/containers/sequences/vector/range_concept_conformance.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // vector
 
 #include <vector>
 
 #include <concepts>
 #include <ranges>
 

libcxx/test/std/containers/unord/unord.map/range_concept_conformance.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // unordered_map
 
 #include <unordered_map>
 
 #include <concepts>
 #include <ranges>
 

libcxx/test/std/containers/unord/unord.multimap/range_concept_conformance.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // unordered_multimap
 
 #include <unordered_map>
 
 #include <concepts>
 #include <ranges>
 

libcxx/test/std/containers/unord/unord.multiset/range_concept_conformance.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // unordered_multiset
 
 #include <unordered_set>
 
 #include <concepts>
 #include <ranges>
 

libcxx/test/std/containers/unord/unord.set/range_concept_conformance.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // unordered_multiset
 
 #include <unordered_set>
 
 #include <concepts>
 #include <ranges>
 

libcxx/test/std/containers/views/range_concept_conformance.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // span
 
 #include <span>
 
 #include <concepts>
 #include <ranges>
 

libcxx/test/std/input.output/filesystems/class.directory_iterator/range_concept_conformance.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 // XFAIL: *
 
 // directory_iterator, recursive_directory_iterator
 
 #include "filesystem_include.h"
 
 #include <concepts>
 #include <ranges>

libcxx/test/std/input.output/filesystems/class.path/range_concept_conformance.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // path
 
 #include "filesystem_include.h"
 
 #include <concepts>
 #include <ranges>
 

libcxx/test/std/iterators/predef.iterators/iterators.common/assign.pass.cpp

 // UNSUPPORTED: gcc-10
 
 // template<class I2, class S2>
 //   requires convertible_to<const I2&, I> && convertible_to<const S2&, S> &&
 //            assignable_from<I&, const I2&> && assignable_from<S&, const S2&>
 //     common_iterator& operator=(const common_iterator<I2, S2>& x);
 
 #include <iterator>
+#ifndef _LIBCPP_HAS_NO_INCOMPLETE_RANGES
 #include <ranges>
+#endif
 #include <cassert>
 
 #include "test_macros.h"
 #include "types.h"
 
 void test() {
   int buffer[8] = {1, 2, 3, 4, 5, 6, 7, 8};
 
int buffer[8] = {1, 2, 3, 4, 5, 6, 7, 8};
     assert(commonIter1 != commonIter2);
 
     commonIter1 = commonIter2;
 
     assert(*commonIter1 == 2);
     assert(*commonIter2 == 2);
     assert(commonIter1 == commonIter2);
   }
+#ifndef _LIBCPP_HAS_NO_INCOMPLETE_RANGES
   {
     auto iter1 = random_access_iterator<int*>(buffer);
     auto commonIter1 = std::common_iterator<decltype(iter1), sentinel_type<int*>>(iter1);
     auto commonSent1 = std::common_iterator<decltype(iter1), sentinel_type<int*>>(sentinel_type<int*>{buffer + 8});
 
     auto commonIter2 = std::common_iterator<decltype(iter1), sentinel_type<int*>>(iter1 + 1);
     auto commonSent2 = std::common_iterator<decltype(iter1), sentinel_type<int*>>(sentinel_type<int*>{buffer + 7});
 
#ifndef _LIBCPP_HAS_NO_INCOMPLETE_RANGES
     assert(std::ranges::next(commonIter1, 6) != commonSent1);
     assert(std::ranges::next(commonIter1, 6) == commonSent2);
 
     commonSent1 = commonSent2;
 
     assert(std::ranges::next(commonIter1, 6) == commonSent1);
     assert(std::ranges::next(commonIter1, 6) == commonSent2);
   }
+#endif
   {
     auto iter1 = assignable_iterator<int*>(buffer);
     auto iter2 = forward_iterator<int*>(buffer + 1);
     auto commonIter1 = std::common_iterator<decltype(iter1), sentinel_type<int*>>(iter1);
     auto commonSent1 = std::common_iterator<decltype(iter1), sentinel_type<int*>>(sentinel_type<int*>{buffer + 8});
 
     auto commonIter2 = std::common_iterator<decltype(iter2), sentinel_type<int*>>(iter2);
     auto commonSent2 = std::common_iterator<decltype(iter2), sentinel_type<int*>>(sentinel_type<int*>{buffer + 7});
 
     assert(*commonIter1 == 1);
     assert(*commonIter2 == 2);
 
     commonIter1 = commonIter2;
 
     assert(*commonIter1 == 2);
     assert(*commonIter2 == 2);
     assert(commonIter1 == commonIter2);
 
+#ifndef _LIBCPP_HAS_NO_INCOMPLETE_RANGES
     assert(std::ranges::next(commonIter1, 6) != commonSent1);
     assert(std::ranges::next(commonIter1, 6) == commonSent2);
+#endif
 
     commonSent1 = commonSent2;
 
+#ifndef _LIBCPP_HAS_NO_INCOMPLETE_RANGES
     assert(std::ranges::next(commonIter1, 6) == commonSent1);
     assert(std::ranges::next(commonIter1, 6) == commonSent2);
+#endif
 
     commonIter1 = commonSent1;
 
     assert(commonIter1 == commonSent2);
 
     commonIter1 = commonSent2;
 
     assert(commonIter1 == commonSent2);

libcxx/test/std/language.support/support.limits/support.limits.general/format.version.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
 // WARNING: This test was generated by generate_feature_test_macro_components.py
 // and should not be edited manually.
 //
 // clang-format off
 
+// UNSUPPORTED: libcpp-has-no-incomplete-format
+
 // <format>
 
 // Test the feature test macros defined by <format>
 
 /*  Constant            Value
     __cpp_lib_format    201907L [C++20]
 */
 

libcxx/test/std/language.support/support.limits/support.limits.general/ranges.version.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
 // WARNING: This test was generated by generate_feature_test_macro_components.py
 // and should not be edited manually.
 //
 // clang-format off
 
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
+
 // <ranges>
 
 // Test the feature test macros defined by <ranges>
 
 /*  Constant            Value
     __cpp_lib_ranges    201811L [C++20]
 */
 

libcxx/test/std/ranges/range.access/range.access.begin/begin.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // std::ranges::begin
 
 #include <ranges>
 
 #include <cassert>
 #include "test_macros.h"
 #include "test_iterators.h"

libcxx/test/std/ranges/range.access/range.access.begin/incomplete.compile.verify.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
 // UNSUPPORTED: clang-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // unspecified begin;
 
 #include <ranges>
 
 #include <type_traits>
 
 using begin_t = decltype(std::ranges::begin);

libcxx/test/std/ranges/range.access/range.access.cbegin/incomplete.compile.verify.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
 // UNSUPPORTED: clang-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // ranges::cbegin;
 
 #include <ranges>
 
 #include <type_traits>
 
 using cbegin_t = decltype(std::ranges::cbegin);

libcxx/test/std/ranges/range.access/range.access.cend/incomplete.compile.verify.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
 // UNSUPPORTED: clang-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // unspecified begin;
 
 #include <ranges>
 
 #include <type_traits>
 
 using cend_t = decltype(std::ranges::cend);

libcxx/test/std/ranges/range.access/range.access.end/end.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // std::ranges::end
 
 #include <ranges>
 
 #include <cassert>
 #include "test_macros.h"
 #include "test_iterators.h"

libcxx/test/std/ranges/range.access/range.access.end/incomplete.compile.verify.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
 // UNSUPPORTED: clang-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // unspecified begin;
 
 #include <ranges>
 
 #include <type_traits>
 
 using end_t = decltype(std::ranges::end);

libcxx/test/std/ranges/range.access/range.prim/data.incomplete.verify.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: clang-10
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // std::ranges::data
 
 #include <ranges>
 
 struct Incomplete;
 
 void f(Incomplete arr[]) {

libcxx/test/std/ranges/range.access/range.prim/data.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // std::ranges::data
 
 #include <ranges>
 
 #include <cassert>
 #include "test_macros.h"
 #include "test_iterators.h"

libcxx/test/std/ranges/range.access/range.prim/empty.incomplete.verify.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: clang-10
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // std::ranges::empty
 
 #include <ranges>
 
 struct Incomplete;
 
 void f(Incomplete arr[]) {

libcxx/test/std/ranges/range.access/range.prim/empty.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // std::ranges::empty
 
 #include <ranges>
 
 #include <cassert>
 #include "test_macros.h"
 #include "test_iterators.h"

libcxx/test/std/ranges/range.access/range.prim/size.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // std::ranges::size
 
 #include <ranges>
 
 #include <cassert>
 #include "test_macros.h"
 #include "test_iterators.h"

libcxx/test/std/ranges/range.access/range.prim/ssize.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // std::ranges::ssize
 
 #include <ranges>
 
 #include <cassert>
 #include "test_macros.h"
 #include "test_iterators.h"

libcxx/test/std/ranges/range.adaptors/range.all/all.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // std::views::all;
 
 #include <ranges>
 
 #include <cassert>
 #include "test_macros.h"
 #include "test_iterators.h"

libcxx/test/std/ranges/range.adaptors/range.all/all_t.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // template<viewable_range R>
 // using all_t = decltype(views::all(declval<R>()));
 
 #include <ranges>
 
 #include "test_iterators.h"
 #include "test_range.h"

libcxx/test/std/ranges/range.adaptors/range.common.view/base.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // constexpr V base() const& requires copy_constructible<V>;
 // constexpr V base() &&;
 
 #include <ranges>
 #include <cassert>
 
 #include "test_macros.h"

libcxx/test/std/ranges/range.adaptors/range.common.view/begin.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // constexpr auto begin();
 // constexpr auto begin() const requires range<const V>;
 
 #include <ranges>
 #include <cassert>
 
 #include "test_macros.h"

libcxx/test/std/ranges/range.adaptors/range.common.view/borrowing.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // template<class T>
 //   inline constexpr bool enable_borrowed_range<common_view<T>> = enable_borrowed_range<T>;
 
 #include <ranges>
 #include <cassert>
 
 #include "test_iterators.h"

libcxx/test/std/ranges/range.adaptors/range.common.view/ctad.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // template<class R>
 //   common_view(R&&) -> common_view<views::all_t<R>>;
 
 #include <ranges>
 #include <cassert>
 
 #include "test_iterators.h"

libcxx/test/std/ranges/range.adaptors/range.common.view/ctor.default.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // common_view() requires default_initializable<V> = default;
 
 #include <ranges>
 #include <cassert>
 
 #include "test_iterators.h"
 #include "test_range.h"

libcxx/test/std/ranges/range.adaptors/range.common.view/ctor.view.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // constexpr explicit common_view(V r);
 
 #include <ranges>
 #include <cassert>
 
 #include "test_iterators.h"
 #include "test_range.h"

libcxx/test/std/ranges/range.adaptors/range.common.view/end.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // constexpr auto end();
 // constexpr auto end() const requires range<const V>;
 
 #include <ranges>
 #include <cassert>
 
 #include "test_macros.h"

libcxx/test/std/ranges/range.adaptors/range.common.view/size.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // constexpr auto size() requires sized_range<V>
 // constexpr auto size() const requires sized_range<const V>
 
 #include <ranges>
 #include <cassert>
 
 #include "test_iterators.h"

libcxx/test/std/ranges/range.adaptors/range.drop/base.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // constexpr V base() const& requires copy_constructible<V> { return base_; }
 // constexpr V base() && { return std::move(base_); }
 
 #include <ranges>
 
 #include "test_macros.h"
 #include "types.h"

libcxx/test/std/ranges/range.adaptors/range.drop/begin.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // constexpr auto begin()
 //   requires (!(simple-view<V> &&
 //               random_access_range<const V> && sized_range<const V>));
 // constexpr auto begin() const
 //   requires random_access_range<const V> && sized_range<const V>;
 
 #include <ranges>

libcxx/test/std/ranges/range.adaptors/range.drop/ctad.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // template<class R>
 // drop_view(R&&, range_difference_t<R>) -> drop_view<views::all_t<R>>;
 
 #include <ranges>
 
 #include "test_macros.h"
 #include "types.h"

libcxx/test/std/ranges/range.adaptors/range.drop/ctor.default.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // drop_view() requires default_initializable<V> = default;
 
 #include <ranges>
 
 #include "test_macros.h"
 #include "types.h"
 

libcxx/test/std/ranges/range.adaptors/range.drop/ctor.view.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // constexpr drop_view(V base, range_difference_t<V> count);
 
 #include <ranges>
 
 #include "test_macros.h"
 #include "types.h"
 

libcxx/test/std/ranges/range.adaptors/range.drop/dangling.cache.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // If we have a copy-propagating cache, when we copy ZeroOnDestroy, we will get a
 // dangling reference to the copied-from object. This test ensures that we do not
 // propagate the cache on copy.
 
 #include <ranges>
 
 #include <cstddef>

libcxx/test/std/ranges/range.adaptors/range.drop/end.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // constexpr auto end()
 //   requires (!simple-view<V>)
 // constexpr auto end() const
 //   requires range<const V>
 
 #include <ranges>
 

libcxx/test/std/ranges/range.adaptors/range.drop/general.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // Some basic examples of how drop_view might be used in the wild. This is a general
 // collection of sample algorithms and functions that try to mock general usage of
 // this view.
 
 #include <ranges>
 
 #include <vector>

libcxx/test/std/ranges/range.adaptors/range.drop/size.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // constexpr auto size()
 //   requires sized_range<V>
 // constexpr auto size() const
 //   requires sized_range<const V>
 
 #include <ranges>
 

libcxx/test/std/ranges/range.adaptors/range.empty/empty_view.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // template<class T>
 // class empty_view;
 
 #include <ranges>
 #include <cassert>
 
 #include "test_macros.h"

libcxx/test/std/ranges/range.adaptors/range.ref.view.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // template<range R>
 //  requires is_object_v<R>
 // class ref_view;
 
 #include <ranges>
 
 #include <cassert>

libcxx/test/std/ranges/range.adaptors/range.transform/base.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // constexpr V base() const& requires copy_constructible<V>
 // constexpr V base() &&
 
 #include <ranges>
 
 #include "test_macros.h"
 #include "types.h"

libcxx/test/std/ranges/range.adaptors/range.transform/begin.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // constexpr iterator<false> begin();
 // constexpr iterator<true> begin() const
 //   requires range<const V> &&
 //            regular_invocable<const F&, range_reference_t<const V>>;
 
 #include <ranges>
 

libcxx/test/std/ranges/range.adaptors/range.transform/ctad.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // CTAD tests.
 
 #include <ranges>
 
 #include "test_macros.h"
 #include "types.h"
 
 static_assert(std::same_as<decltype(std::ranges::transform_view(InputView(), Increment())),
                            std::ranges::transform_view<InputView, Increment>>);
 static_assert(std::same_as<decltype(std::ranges::transform_view(std::declval<ForwardRange&>(), Increment())),
                            std::ranges::transform_view<std::ranges::ref_view<ForwardRange>, Increment>>);
 static_assert(std::same_as<decltype(std::ranges::transform_view(BorrowableRange(), Increment())),
                            std::ranges::transform_view<std::ranges::subrange<int*>, Increment>>);

libcxx/test/std/ranges/range.adaptors/range.transform/end.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // constexpr sentinel<false> end();
 // constexpr iterator<false> end() requires common_range<V>;
 // constexpr sentinel<true> end() const
 //   requires range<const V> &&
 //            regular_invocable<const F&, range_reference_t<const V>>;
 // constexpr iterator<true> end() const
 //   requires common_range<const V> &&

libcxx/test/std/ranges/range.adaptors/range.transform/general.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // Some basic examples of how transform_view might be used in the wild. This is a general
 // collection of sample algorithms and functions that try to mock general usage of
 // this view.
 
 #include <ranges>
 
 #include <cctype>

libcxx/test/std/ranges/range.adaptors/range.transform/iterator/arithmetic.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // transform_view::<iterator>::operator{++,--,+=,-=}
 
 #include <ranges>
 
 #include "test_macros.h"
 #include "../types.h"
 

libcxx/test/std/ranges/range.adaptors/range.transform/iterator/base.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // transform_view::<iterator>::base
 
 #include <ranges>
 
 #include "test_macros.h"
 #include "../types.h"
 

libcxx/test/std/ranges/range.adaptors/range.transform/iterator/compare.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // transform_view::<iterator>::operator{<,>,<=,>=}
 
 #include <ranges>
 #include <compare>
 
 #include "test_macros.h"
 #include "../types.h"

libcxx/test/std/ranges/range.adaptors/range.transform/iterator/ctor.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // transform_view::<iterator>::transform_view::<iterator>();
 
 #include <ranges>
 
 #include "test_macros.h"
 #include "../types.h"
 

libcxx/test/std/ranges/range.adaptors/range.transform/iterator/deref.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // transform_view::<iterator>::operator*
 
 #include <ranges>
 
 #include "test_macros.h"
 #include "../types.h"
 

libcxx/test/std/ranges/range.adaptors/range.transform/iterator/iter_move.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // transform_view::<iterator>::operator[]
 
 #include <ranges>
 
 #include "test_macros.h"
 #include "../types.h"
 

libcxx/test/std/ranges/range.adaptors/range.transform/iterator/plus_minus.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // transform_view::<iterator>::operator{+,-}
 
 #include <ranges>
 
 #include "test_macros.h"
 #include "../types.h"
 

libcxx/test/std/ranges/range.adaptors/range.transform/iterator/requirements.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // The requirements for transform_view::<iterator>'s members.
 
 #include <ranges>
 
 #include "test_macros.h"
 #include "../types.h"
 
 static_assert(std::ranges::bidirectional_range<std::ranges::transform_view<BidirectionalView, IncrementConst>>);
 static_assert(!std::ranges::bidirectional_range<std::ranges::transform_view<ForwardView, IncrementConst>>);
 
 static_assert(std::ranges::random_access_range<std::ranges::transform_view<RandomAccessView, IncrementConst>>);
 static_assert(!std::ranges::random_access_range<std::ranges::transform_view<BidirectionalView, IncrementConst>>);

libcxx/test/std/ranges/range.adaptors/range.transform/iterator/sentinel.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // class transform_view::<sentinel>;
 
 #include <ranges>
 
 #include "test_macros.h"
 #include "../types.h"
 

libcxx/test/std/ranges/range.adaptors/range.transform/iterator/subscript.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // transform_view::<iterator>::operator[]
 
 #include <ranges>
 
 #include "test_macros.h"
 #include "../types.h"
 

libcxx/test/std/ranges/range.adaptors/range.transform/iterator/types.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // transform_view::<iterator>::difference_type
 // transform_view::<iterator>::value_type
 // transform_view::<iterator>::iterator_category
 // transform_view::<iterator>::iterator_concept
 
 #include <ranges>
 

libcxx/test/std/ranges/range.adaptors/range.transform/size.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // constexpr auto size() requires sized_range<V>
 // constexpr auto size() const requires sized_range<const V>
 
 #include <ranges>
 
 #include "test_macros.h"
 #include "types.h"

libcxx/test/std/ranges/range.range/borrowed_range.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // template<class T>
 // concept borrowed_range;
 
 #include <ranges>
 
 struct NotRange {
   int begin() const;

libcxx/test/std/ranges/range.range/borrowed_range.subsumption.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // template<class T>
 // concept borrowed_range;
 
 #include <ranges>
 
 template <std::ranges::range R>
 consteval bool check_subsumption() {

libcxx/test/std/ranges/range.req/range.range/enable_borrowed_range.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // <ranges>
 
 // template<class>
 //  inline constexpr bool enable_borrowed_range = false;
 
 #include <ranges>
 #include <array>

libcxx/test/std/ranges/range.req/range.range/helper_aliases.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // template<range R>
 // using range_difference_t = iter_difference_t<iterator_t<R>>;
 
 // template<range R>
 // using range_value_t = iter_value_t<iterator_t<R>>;
 
 // template<range R>

libcxx/test/std/ranges/range.req/range.range/iterator_t.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // template<class T>
 // using iterator_t = decltype(ranges::begin(declval<T&>()));
 
 #include <ranges>
 
 #include <concepts>
 

libcxx/test/std/ranges/range.req/range.range/range.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // template<class T>
 // concept range;
 
 #include <ranges>
 
 #include <vector>
 

libcxx/test/std/ranges/range.req/range.range/range_size_t.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // template<sized_range R>
 // using range_size_t = decltype(ranges::size(declval<R&>()));
 
 #include <ranges>
 #include <concepts>
 #include <cstddef>
 

libcxx/test/std/ranges/range.req/range.range/sentinel_t.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // template<range _Rp>
 // using sentinel_t = decltype(ranges::end(declval<_Rp&>()));
 
 #include <ranges>
 
 #include <concepts>
 

libcxx/test/std/ranges/range.req/range.refinements/bidirectional_range.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // template<class R>
 // concept bidirectional_range;
 
 #include <ranges>
 
 #include "test_range.h"
 

libcxx/test/std/ranges/range.req/range.refinements/common_range.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // template<class R>
 // concept common_range;
 
 #include <ranges>
 
 #include "test_iterators.h"
 #include "test_range.h"

libcxx/test/std/ranges/range.req/range.refinements/contiguous_range.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // template<class R>
 // concept contiguous_range;
 
 #include <ranges>
 
 #include "test_range.h"
 #include "test_iterators.h"

libcxx/test/std/ranges/range.req/range.refinements/forward_range.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // template<class R>
 // concept forward_range;
 
 #include <ranges>
 
 #include "test_iterators.h"
 #include "test_range.h"

libcxx/test/std/ranges/range.req/range.refinements/input_range.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // template<class R>
 // concept input_range;
 
 #include <ranges>
 
 #include "test_iterators.h"
 #include "test_range.h"

libcxx/test/std/ranges/range.req/range.refinements/output_range.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // template<class R, class T>
 // concept output_range;
 
 #include <ranges>
 
 #include <iterator>
 #include "test_iterators.h"

libcxx/test/std/ranges/range.req/range.refinements/random_access_range.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // template<class R>
 // concept random_access_range;
 
 #include <ranges>
 
 #include "test_range.h"
 #include "test_iterators.h"

libcxx/test/std/ranges/range.req/range.refinements/subsumption.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // template<class T>
 // concept input_iterator;
 
 // std::ranges::forward_range
 
 #include <ranges>
 

libcxx/test/std/ranges/range.req/range.refinements/viewable_range.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // template<class R>
 // concept viewable_range;
 
 #include <ranges>
 #include <type_traits>
 
 #include "test_iterators.h"

libcxx/test/std/ranges/range.req/range.sized/sized_range.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // template<class T>
 // concept sized_range;
 
 #include <ranges>
 
 #include "test_iterators.h"
 

libcxx/test/std/ranges/range.req/range.sized/subsumption.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // template<class T>
 // concept sized_range;
 
 #include <ranges>
 
 template <std::ranges::range R>
 consteval bool check_subsumption() {

libcxx/test/std/ranges/range.req/range.view/enable_view.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // <ranges>
 
 // template<class T>
 // inline constexpr bool enable_view = ...;
 
 #include <ranges>
 

libcxx/test/std/ranges/range.req/range.view/view.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // <ranges>
 
 // template<class T>
 // concept view = ...;
 
 #include <ranges>
 

libcxx/test/std/ranges/range.req/range.view/view.subsumption.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // <ranges>
 
 // template<class T>
 // concept view = ...;
 
 #include <ranges>
 

libcxx/test/std/ranges/range.req/range.view/view_base.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // <ranges>
 
 // struct view_base { };
 
 #include <ranges>
 #include <type_traits>
 
 static_assert(std::is_empty_v<std::ranges::view_base>);
 static_assert(std::is_trivial_v<std::ranges::view_base>);
 
 // Make sure we can inherit from it, as it's intended (that wouldn't be the
 // case if e.g. it was marked as final).
 struct View : std::ranges::view_base { };

libcxx/test/std/ranges/range.utility/range.dangling/borrowed_iterator.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // std::ranges::borrowed_iterator_t;
 
 #include <ranges>
 
 #include <concepts>
 #include <span>
 #include <string>

libcxx/test/std/ranges/range.utility/range.dangling/borrowed_subrange.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // std::ranges::borrowed_subrange_t;
 
 #include <ranges>
 
 #include <concepts>
 #include <span>
 #include <string>

libcxx/test/std/ranges/range.utility/range.dangling/dangling.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // std::ranges::dangling;
 
 #include <ranges>
 
 #include <concepts>
 #include <type_traits>
 

libcxx/test/std/ranges/range.utility/range.subrange/access/advance.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // class std::ranges::subrange;
 
 #include <ranges>
 
 #include <cassert>
 #include "test_macros.h"
 #include "test_iterators.h"

libcxx/test/std/ranges/range.utility/range.subrange/access/get.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // class std::ranges::subrange;
 
 #include <ranges>
 
 #include <cassert>
 #include "test_macros.h"
 #include "test_iterators.h"

libcxx/test/std/ranges/range.utility/range.subrange/access/primitives.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // class std::ranges::subrange;
 
 #include <ranges>
 
 #include <cassert>
 #include "test_macros.h"
 #include "test_iterators.h"

libcxx/test/std/ranges/range.utility/range.subrange/ctad.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // class std::ranges::subrange;
 
 #include <ranges>
 
 #include <cassert>
 #include "test_macros.h"
 #include "test_iterators.h"

libcxx/test/std/ranges/range.utility/range.subrange/ctor/begin_end.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // class std::ranges::subrange;
 
 #include <ranges>
 
 #include "../subrange_test_types.h"
 #include <cassert>
 #include "test_macros.h"

libcxx/test/std/ranges/range.utility/range.subrange/ctor/begin_end_size.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // class std::ranges::subrange;
 
 #include <ranges>
 
 #include "../subrange_test_types.h"
 #include <cassert>
 #include "test_macros.h"

libcxx/test/std/ranges/range.utility/range.subrange/ctor/pair_like_conv.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // class std::ranges::subrange;
 
 #include <ranges>
 
 #include "../subrange_test_types.h"
 #include <cassert>
 #include "test_macros.h"

libcxx/test/std/ranges/range.utility/range.subrange/ctor/range.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // class std::ranges::subrange;
 
 #include <ranges>
 
 #include "../subrange_test_types.h"
 #include <cassert>
 #include "test_macros.h"

libcxx/test/std/ranges/range.utility/range.subrange/ctor/range_size.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // class std::ranges::subrange;
 
 #include <ranges>
 
 // Tested in pair_like_conv.pass.cpp.
 
 int main(int, char**) {
   return 0;
 }

libcxx/test/std/ranges/range.utility/range.subrange/enable_borrowed_range.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // class std::ranges::subrange;
 
 #include <ranges>
 
 #include "test_iterators.h"
 
 namespace ranges = std::ranges;
 
 static_assert(ranges::borrowed_range<ranges::subrange<int*>>);
 static_assert(ranges::borrowed_range<ranges::subrange<int*, int const*>>);
 static_assert(ranges::borrowed_range<ranges::subrange<int*, sentinel_wrapper<int*>, ranges::subrange_kind::unsized>>);

libcxx/test/std/ranges/range.utility/range.subrange/general.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // class std::ranges::subrange;
 
 #include <ranges>
 
 #include <cassert>
 #include "test_macros.h"
 #include "test_iterators.h"

libcxx/test/std/ranges/range.utility/view.interface/view.interface.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // template<class D>
 //   requires is_class_v<D> && same_as<D, remove_cv_t<D>>
 // class view_interface;
 
 #include <ranges>
 
 #include <cassert>

libcxx/test/std/re/re.results/range_concept_conformance.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // match_results
 
 #include <regex>
 
 #include <concepts>
 #include <ranges>
 

libcxx/test/std/strings/basic.string/range_concept_conformance.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // string
 
 #include <string>
 
 #include <concepts>
 #include <ranges>
 

libcxx/test/std/strings/string.view/range_concept_conformance.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: gcc-10
+// UNSUPPORTED: libcpp-has-no-incomplete-ranges
 
 // string_view
 
 #include <string_view>
 
 #include <concepts>
 #include <ranges>
 

libcxx/test/std/utilities/format/format.error/format.error.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
+// UNSUPPORTED: libcpp-has-no-incomplete-format
 
 // This test requires the dylib support introduced in D92214.
 // XFAIL: use_system_cxx_lib && target={{.+}}-apple-macosx10.{{9|10|11|12|13|14|15}}
 
 // <format>
 
 // class format_error;
 

libcxx/test/std/utilities/format/format.formatter/format.parse.ctx/advance_to.pass.cpp

 //===----------------------------------------------------------------------===//
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
+// UNSUPPORTED: libcpp-has-no-incomplete-format
 
 // <format>
 
 // constexpr void advance_to(const_iterator it);
 
 #include <format>
 
 #include <cassert>

libcxx/test/std/utilities/format/format.formatter/format.parse.ctx/begin.pass.cpp

 //===----------------------------------------------------------------------===//
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
+// UNSUPPORTED: libcpp-has-no-incomplete-format
 
 // <format>
 
 // constexpr begin() const noexcept;
 
 #include <format>
 
 #include <cassert>

libcxx/test/std/utilities/format/format.formatter/format.parse.ctx/check_arg_id.pass.cpp

 //===----------------------------------------------------------------------===//
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: no-exceptions
+// UNSUPPORTED: libcpp-has-no-incomplete-format
 
 // This test requires the dylib support introduced in D92214.
 // XFAIL: use_system_cxx_lib && target={{.+}}-apple-macosx10.{{9|10|11|12|13|14|15}}
 
 // <format>
 
 // constexpr void check_arg_id(size_t id);
 

libcxx/test/std/utilities/format/format.formatter/format.parse.ctx/ctor.pass.cpp

 //===----------------------------------------------------------------------===//
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
+// UNSUPPORTED: libcpp-has-no-incomplete-format
 
 // <format>
 
 // constexpr explicit
 // basic_format_parse_context(basic_string_view<charT> fmt,
 //                            size_t num_args = 0) noexcept
 
 #include <format>

libcxx/test/std/utilities/format/format.formatter/format.parse.ctx/end.pass.cpp

 //===----------------------------------------------------------------------===//
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
+// UNSUPPORTED: libcpp-has-no-incomplete-format
 
 // <format>
 
 // constexpr end() const noexcept;
 
 #include <format>
 
 #include <cassert>

libcxx/test/std/utilities/format/format.formatter/format.parse.ctx/next_arg_id.pass.cpp

 //===----------------------------------------------------------------------===//
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
 // UNSUPPORTED: no-exceptions
+// UNSUPPORTED: libcpp-has-no-incomplete-format
 
 // This test requires the dylib support introduced in D92214.
 // XFAIL: use_system_cxx_lib && target={{.+}}-apple-macosx10.{{9|10|11|12|13|14|15}}
 
 // <format>
 
 // constexpr size_t next_arg_id();
 

libcxx/test/std/utilities/format/format.formatter/format.parse.ctx/types.compile.pass.cpp

 //===----------------------------------------------------------------------===//
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 // UNSUPPORTED: libcpp-no-concepts
+// UNSUPPORTED: libcpp-has-no-incomplete-format
 
 // <format>
 
 // Class typedefs:
 // template<class charT>
 // class basic_format_parse_context {
 // public:
 //   using char_type = charT;

libcxx/utils/generate_feature_test_macro_components.py

 #
 # For example, when threads are not supported, any feature-test-macro test
 # that includes <thread> should be marked as UNSUPPORTED, because including
 # <thread> is a hard error in that case.
 lit_markup = {
   "atomic": ["UNSUPPORTED: libcpp-has-no-threads"],
   "barrier": ["UNSUPPORTED: libcpp-has-no-threads"],
   "filesystem": ["UNSUPPORTED: libcpp-has-no-filesystem-library"],
+  "format": ["UNSUPPORTED: libcpp-has-no-incomplete-format"],
   "iomanip": ["UNSUPPORTED: libcpp-has-no-localization"],
   "istream": ["UNSUPPORTED: libcpp-has-no-localization"],
   "latch": ["UNSUPPORTED: libcpp-has-no-threads"],
   "locale": ["UNSUPPORTED: libcpp-has-no-localization"],
   "ostream": ["UNSUPPORTED: libcpp-has-no-localization"],
+  "ranges": ["UNSUPPORTED: libcpp-has-no-incomplete-ranges"],
   "regex": ["UNSUPPORTED: libcpp-has-no-localization"],
   "semaphore": ["UNSUPPORTED: libcpp-has-no-threads"],
   "shared_mutex": ["UNSUPPORTED: libcpp-has-no-threads"],
   "thread": ["UNSUPPORTED: libcpp-has-no-threads"],
 }
 
 def get_std_dialects():
   std_dialects = ['c++14', 'c++17', 'c++20', 'c++2b']

libcxx/utils/generate_header_inclusion_tests.py

 #
 # For example, when threads are not supported, any test
 # that includes <thread> should be marked as UNSUPPORTED, because including
 # <thread> is a hard error in that case.
 lit_markup = {
   "atomic": ["UNSUPPORTED: libcpp-has-no-threads"],
   "barrier": ["UNSUPPORTED: libcpp-has-no-threads"],
   "filesystem": ["UNSUPPORTED: libcpp-has-no-filesystem-library"],
+  "format": ["UNSUPPORTED: libcpp-has-no-incomplete-format"],
   "iomanip": ["UNSUPPORTED: libcpp-has-no-localization"],
   "ios": ["UNSUPPORTED: libcpp-has-no-localization"],
   "iostream": ["UNSUPPORTED: libcpp-has-no-localization"],
   "istream": ["UNSUPPORTED: libcpp-has-no-localization"],
   "latch": ["UNSUPPORTED: libcpp-has-no-threads"],
   "locale": ["UNSUPPORTED: libcpp-has-no-localization"],
   "ostream": ["UNSUPPORTED: libcpp-has-no-localization"],
+  "ranges": ["UNSUPPORTED: libcpp-has-no-incomplete-ranges"],
   "regex": ["UNSUPPORTED: libcpp-has-no-localization"],
   "semaphore": ["UNSUPPORTED: libcpp-has-no-threads"],
   "shared_mutex": ["UNSUPPORTED: libcpp-has-no-threads"],
   "thread": ["UNSUPPORTED: libcpp-has-no-threads"],
 }
 
 
 def get_std_ver_test(includee):

libcxx/utils/generate_header_tests.py

header_markup = {
     "latch": ["ifndef _LIBCPP_HAS_NO_THREADS"],
     "mutex": ["ifndef _LIBCPP_HAS_NO_THREADS"],
     "semaphore": ["ifndef _LIBCPP_HAS_NO_THREADS"],
     "shared_mutex": ["ifndef _LIBCPP_HAS_NO_THREADS"],
     "thread": ["ifndef _LIBCPP_HAS_NO_THREADS"],
 
     "experimental/filesystem": ["ifndef _LIBCPP_HAS_NO_FILESYSTEM_LIBRARY"],
     "filesystem": ["ifndef _LIBCPP_HAS_NO_FILESYSTEM_LIBRARY"],
+    "format": ["ifndef _LIBCPP_HAS_NO_INCOMPLETE_FORMAT"],
 
     "clocale": ["ifndef _LIBCPP_HAS_NO_LOCALIZATION"],
     "codecvt": ["ifndef _LIBCPP_HAS_NO_LOCALIZATION"],
     "fstream": ["ifndef _LIBCPP_HAS_NO_LOCALIZATION"],
     "iomanip": ["ifndef _LIBCPP_HAS_NO_LOCALIZATION"],
     "ios": ["ifndef _LIBCPP_HAS_NO_LOCALIZATION"],
     "iostream": ["ifndef _LIBCPP_HAS_NO_LOCALIZATION"],
     "istream": ["ifndef _LIBCPP_HAS_NO_LOCALIZATION"],
     "locale.h": ["ifndef _LIBCPP_HAS_NO_LOCALIZATION"],
     "locale": ["ifndef _LIBCPP_HAS_NO_LOCALIZATION"],
     "ostream": ["ifndef _LIBCPP_HAS_NO_LOCALIZATION"],
+    "ranges": ["ifndef _LIBCPP_HAS_NO_INCOMPLETE_RANGES"],
     "regex": ["ifndef _LIBCPP_HAS_NO_LOCALIZATION"],
     "sstream": ["ifndef _LIBCPP_HAS_NO_LOCALIZATION"],
     "streambuf": ["ifndef _LIBCPP_HAS_NO_LOCALIZATION"],
     "strstream": ["ifndef _LIBCPP_HAS_NO_LOCALIZATION"],
 
     "experimental/coroutine": ["if defined(__cpp_coroutines)"],
     "experimental/regex": ["ifndef _LIBCPP_HAS_NO_LOCALIZATION"],
 }

libcxx/utils/libcxx/test/features.py

macros = {
   '_LIBCPP_HAS_THREAD_API_EXTERNAL': 'libcpp-has-thread-api-external',
   '_LIBCPP_HAS_THREAD_API_PTHREAD': 'libcpp-has-thread-api-pthread',
   '_LIBCPP_NO_VCRUNTIME': 'libcpp-no-vcruntime',
   '_LIBCPP_ABI_VERSION': 'libcpp-abi-version',
   '_LIBCPP_ABI_UNSTABLE': 'libcpp-abi-unstable',
   '_LIBCPP_HAS_NO_FILESYSTEM_LIBRARY': 'libcpp-has-no-filesystem-library',
   '_LIBCPP_HAS_NO_RANDOM_DEVICE': 'libcpp-has-no-random-device',
   '_LIBCPP_HAS_NO_LOCALIZATION': 'libcpp-has-no-localization',
+  '_LIBCPP_HAS_NO_INCOMPLETE_FORMAT': 'libcpp-has-no-incomplete-format',
+  '_LIBCPP_HAS_NO_INCOMPLETE_RANGES': 'libcpp-has-no-incomplete-ranges',
 }
 for macro, feature in macros.items():
   DEFAULT_FEATURES += [
     Feature(name=lambda cfg, m=macro, f=feature: f + (
               '={}'.format(compilerMacros(cfg)[m]) if compilerMacros(cfg)[m] else ''
             ),
             when=lambda cfg, m=macro: m in compilerMacros(cfg),