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Differential D31966

[libcxx] [test] Avoid Clang's -Wunused-const-variable in is_constructible.pass.cpp.
ClosedPublic

Authored by STL_MSFT on Apr 11 2017, 5:34 PM.

Details

Reviewers
mclow.lists
EricWF
Summary

[libcxx] [test] Avoid Clang's -Wunused-const-variable in is_constructible.pass.cpp.

This happens when using Clang with MSVC's STL, so there are no actual uses of this variable.

Diff Detail

Revision Contents

PathSize
test/
std/
utilities/
meta/
meta.unary/
meta.unary.prop/
1 line

Diff 94913

test/std/utilities/meta/meta.unary/meta.unary.prop/is_constructible.pass.cpp

Show First 20 Lines • Show All 245 Lines • ▼ Show 20 Lines
#if defined(CLANG_TEST_VER) && CLANG_TEST_VER < 400 #if defined(CLANG_TEST_VER) && CLANG_TEST_VER < 400
static_assert(clang_disallows_valid_static_cast_bug, "bug still exists"); static_assert(clang_disallows_valid_static_cast_bug, "bug still exists");
#endif #endif
// FIXME Clang disallows this construction because it thinks that // FIXME Clang disallows this construction because it thinks that
// 'static_cast<int&&>(declval<ExplicitTo<int&&>>())' is ill-formed. // 'static_cast<int&&>(declval<ExplicitTo<int&&>>())' is ill-formed.
LIBCPP_STATIC_ASSERT( LIBCPP_STATIC_ASSERT(
clang_disallows_valid_static_cast_bug != clang_disallows_valid_static_cast_bug !=
std::__libcpp_is_constructible<int&&, ExplicitTo<int&&>>::value, ""); std::__libcpp_is_constructible<int&&, ExplicitTo<int&&>>::value, "");
((void)clang_disallows_valid_static_cast_bug); // Prevent unused warning
#else #else
static_assert(clang_disallows_valid_static_cast_bug == false, ""); static_assert(clang_disallows_valid_static_cast_bug == false, "");
LIBCPP_STATIC_ASSERT(std::__libcpp_is_constructible<int&&, ExplicitTo<int&&>>::value, ""); LIBCPP_STATIC_ASSERT(std::__libcpp_is_constructible<int&&, ExplicitTo<int&&>>::value, "");
#endif #endif
#ifdef __clang__ #ifdef __clang__
// FIXME Clang and GCC disagree on the validity of this expression. // FIXME Clang and GCC disagree on the validity of this expression.
test_is_constructible<const int&, ExplicitTo<int>>(); test_is_constructible<const int&, ExplicitTo<int>>();
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