[libcxx][gardening] Re-order includes across libcxx.

[zoecarver]

Summary

This commit alphabetizes all includes in libcxx. This is a NFC.

This can also serve as a pseudo "announcement" for how we should order these headers going forward (note: double underscores go before other headers).

[ldionne]

This can also serve as a pseudo "announcement" for how we should order these headers going forward (note: double underscores go before other headers).

Rather -- we always sort alphabetically, which means double underscores go where they go: before non-underscored headers, but it's really just mechanical.

libcxx/include/__ranges/data.h

12–13

We could remove the newline here and just include __config like any other header, in alphabetical order.

libcxx/include/__bsd_locale_fallbacks.h

 // -*- C++ -*-
 //===---------------------- __bsd_locale_fallbacks.h ----------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 // The BSDs have lots of *_l functions.  This file provides reimplementations
 // of those functions for non-BSD platforms.
 //===----------------------------------------------------------------------===//
 
 #ifndef _LIBCPP_BSD_LOCALE_FALLBACKS_DEFAULTS_H
 #define _LIBCPP_BSD_LOCALE_FALLBACKS_DEFAULTS_H
 
-#include <stdlib.h>
-#include <stdarg.h>
 #include <memory>
+#include <stdarg.h>
+#include <stdlib.h>
 
 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
 #pragma GCC system_header
 #endif
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 inline _LIBCPP_INLINE_VISIBILITY

libcxx/include/__iterator/concepts.h

 // -*- C++ -*-
 //===----------------------------------------------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 
 #ifndef _LIBCPP___ITERATOR_CONCEPTS_H
 #define _LIBCPP___ITERATOR_CONCEPTS_H
 
 #include <__config>
-#include <concepts>
 #include <__iterator/incrementable_traits.h>
-#include <__iterator/iterator_traits.h>
 #include <__iterator/iter_move.h>
+#include <__iterator/iterator_traits.h>
 #include <__iterator/readable_traits.h>
 #include <__memory/pointer_traits.h>
+#include <concepts>
 
 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
 #pragma GCC system_header
 #endif
 
 _LIBCPP_PUSH_MACROS
 #include <__undef_macros>
 

libcxx/include/__iterator/iterator_traits.h

 // -*- C++ -*-
 //===----------------------------------------------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 
 #ifndef _LIBCPP___ITERATOR_ITERATOR_TRAITS_H
 #define _LIBCPP___ITERATOR_ITERATOR_TRAITS_H
 
 #include <__config>
-#include <concepts>
 #include <__iterator/incrementable_traits.h>
 #include <__iterator/readable_traits.h>
+#include <concepts>
 #include <type_traits>
 
 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
 #pragma GCC system_header
 #endif
 
 _LIBCPP_PUSH_MACROS
 #include <__undef_macros>

libcxx/include/__memory/shared_ptr.h

 // -*- C++ -*-
 //===----------------------------------------------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 
 #ifndef _LIBCPP___MEMORY_SHARED_PTR_H
 #define _LIBCPP___MEMORY_SHARED_PTR_H
 
-#include <__config>
 #include <__availability>
+#include <__config>
 #include <__functional_base> // std::less, std::binary_function
 #include <__memory/addressof.h>
 #include <__memory/allocation_guard.h>
 #include <__memory/allocator.h>
 #include <__memory/allocator_traits.h>
 #include <__memory/compressed_pair.h>
 #include <__memory/pointer_traits.h>
 #include <__memory/unique_ptr.h>

libcxx/include/__ranges/data.h

 // -*- C++ -*-
 //===------------------------ __ranges/data.h ------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 #ifndef _LIBCPP___RANGES_DATA_H
 #define _LIBCPP___RANGES_DATA_H
 
 #include <__config>
-
-#include <concepts>
 #include <__iterator/concepts.h>
 #include <__iterator/iterator_traits.h>
 #include <__ranges/access.h>
+#include <concepts>
 #include <type_traits>
 
 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
 #pragma GCC system_header
 #endif
 
 _LIBCPP_PUSH_MACROS
 #include <__undef_macros>

libcxx/include/__ranges/size.h

 // -*- C++ -*-
 //===----------------------------------------------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 #ifndef _LIBCPP___RANGES_SIZE_H
 #define _LIBCPP___RANGES_SIZE_H
 
 #include <__config>
-#include <__iterator/iterator_traits.h>
 #include <__iterator/concepts.h>
+#include <__iterator/iterator_traits.h>
 #include <__ranges/access.h>
 #include <type_traits>
 
 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
 #pragma GCC system_header
 #endif
 
 _LIBCPP_PUSH_MACROS

libcxx/include/__support/ibm/xlocale.h

 // -*- C++ -*-
 //===-----------------------------------------------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 
 #ifndef _LIBCPP_SUPPORT_IBM_XLOCALE_H
 #define _LIBCPP_SUPPORT_IBM_XLOCALE_H
 
-#include <stdarg.h>
 #include <__support/ibm/locale_mgmt_aix.h>
 #include <__support/ibm/locale_mgmt_zos.h>
+#include <stdarg.h>
 
 #include "cstdlib"
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 #if defined(_AIX)

libcxx/include/__support/openbsd/xlocale.h

 // -*- C++ -*-
 //===-----------------------------------------------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 
 #ifndef _LIBCPP_SUPPORT_OPENBSD_XLOCALE_H
 #define _LIBCPP_SUPPORT_OPENBSD_XLOCALE_H
 
-#include <cstdlib>
+#include <__support/xlocale/__strtonum_fallback.h>
 #include <clocale>
-#include <cwctype>
+#include <cstdlib>
 #include <ctype.h>
-#include <__support/xlocale/__strtonum_fallback.h>
+#include <cwctype>
 
 #endif

libcxx/include/__support/win32/limits_msvc_win32.h

 
 #if !defined(_LIBCPP_MSVCRT)
 #error "This header complements the Microsoft C Runtime library, and should not be included otherwise."
 #endif
 #if defined(__clang__)
 #error "This header should only be included when using Microsofts C1XX frontend"
 #endif
 
-#include <limits.h> // CHAR_BIT
 #include <float.h> // limit constants
+#include <limits.h> // CHAR_BIT
 #include <math.h> // HUGE_VAL
 #include <ymath.h> // internal MSVC header providing the needed functionality
 
 #define __CHAR_BIT__       CHAR_BIT
 
 #define __FLT_MANT_DIG__   FLT_MANT_DIG
 #define __FLT_DIG__        FLT_DIG
 #define __FLT_RADIX__      FLT_RADIX

libcxx/include/__support/win32/locale_win32.h

 // -*- C++ -*-
 //===-----------------------------------------------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 
 #ifndef _LIBCPP_SUPPORT_WIN32_LOCALE_WIN32_H
 #define _LIBCPP_SUPPORT_WIN32_LOCALE_WIN32_H
 
 #include <__config>
-#include <stdio.h>
-#include <locale.h> // _locale_t
 #include <__nullptr>
+#include <locale.h> // _locale_t
+#include <stdio.h>
 
 #define _X_ALL LC_ALL
 #define _X_COLLATE LC_COLLATE
 #define _X_CTYPE LC_CTYPE
 #define _X_MONETARY LC_MONETARY
 #define _X_NUMERIC LC_NUMERIC
 #define _X_TIME LC_TIME
 #define _X_MAX LC_MAX