diff options
Diffstat (limited to 'libcxx/test/std')
-rw-r--r-- | libcxx/test/std/utilities/meta/meta.unary/meta.unary.prop/is_aggregate.pass.cpp | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/libcxx/test/std/utilities/meta/meta.unary/meta.unary.prop/is_aggregate.pass.cpp b/libcxx/test/std/utilities/meta/meta.unary/meta.unary.prop/is_aggregate.pass.cpp new file mode 100644 index 00000000000..9c72d4d44ce --- /dev/null +++ b/libcxx/test/std/utilities/meta/meta.unary/meta.unary.prop/is_aggregate.pass.cpp @@ -0,0 +1,79 @@ +//===----------------------------------------------------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is dual licensed under the MIT and the University of Illinois Open +// Source Licenses. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +// UNSUPPORTED: c++98, c++03, c++11, c++14 + +// <type_traits> + +// template <class T> struct is_aggregate; +// template <class T> constexpr bool is_aggregate_v = is_aggregate<T>::value; + +#include <type_traits> +#include "test_macros.h" + +template <class T> +void test_true() +{ +#if !defined(_LIBCPP_HAS_NO_IS_AGGREGATE) + static_assert( std::is_aggregate<T>::value, ""); + static_assert( std::is_aggregate<const T>::value, ""); + static_assert( std::is_aggregate<volatile T>::value, ""); + static_assert( std::is_aggregate<const volatile T>::value, ""); + static_assert( std::is_aggregate_v<T>, ""); + static_assert( std::is_aggregate_v<const T>, ""); + static_assert( std::is_aggregate_v<volatile T>, ""); + static_assert( std::is_aggregate_v<const volatile T>, ""); +#endif +} + +template <class T> +void test_false() +{ +#if !defined(_LIBCPP_HAS_NO_IS_AGGREGATE) + static_assert(!std::is_aggregate<T>::value, ""); + static_assert(!std::is_aggregate<const T>::value, ""); + static_assert(!std::is_aggregate<volatile T>::value, ""); + static_assert(!std::is_aggregate<const volatile T>::value, ""); + static_assert(!std::is_aggregate_v<T>, ""); + static_assert(!std::is_aggregate_v<const T>, ""); + static_assert(!std::is_aggregate_v<volatile T>, ""); + static_assert(!std::is_aggregate_v<const volatile T>, ""); +#endif +} + +struct Aggregate {}; +struct HasCons { HasCons(int); }; +struct HasPriv { + void PreventUnusedPrivateMemberWarning(); +private: + int x; +}; +struct Union { int x; void* y; }; + + +int main () +{ + { + test_false<void>(); + test_false<int>(); + test_false<void*>(); + test_false<void()>(); + test_false<void() const>(); + test_false<void(Aggregate::*)(int) const>(); + test_false<Aggregate&>(); + test_false<HasCons>(); + test_false<HasPriv>(); + } + { + test_true<Aggregate>(); + test_true<Aggregate[]>(); + test_true<Aggregate[42][101]>(); + test_true<Union>(); + } +} |