diff options
Diffstat (limited to 'libcxx/test')
| -rw-r--r-- | libcxx/test/libcxx/selftest/test_macros.pass.cpp | 58 | ||||
| -rw-r--r-- | libcxx/test/support/test_macros.h | 83 |
2 files changed, 141 insertions, 0 deletions
diff --git a/libcxx/test/libcxx/selftest/test_macros.pass.cpp b/libcxx/test/libcxx/selftest/test_macros.pass.cpp new file mode 100644 index 00000000000..2c8ed4f454a --- /dev/null +++ b/libcxx/test/libcxx/selftest/test_macros.pass.cpp @@ -0,0 +1,58 @@ +//===----------------------------------------------------------------------===// +// +// 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. +// +//===----------------------------------------------------------------------===// +// +// Test the "test_macros.h" header. +#include "test_macros.h" + +#ifndef TEST_STD_VER +#error TEST_STD_VER must be defined +#endif + +#ifndef TEST_DECLTYPE +#error TEST_DECLTYPE must be defined +#endif + +#ifndef TEST_NOEXCEPT +#error TEST_NOEXCEPT must be defined +#endif + +#ifndef TEST_STATIC_ASSERT +#error TEST_STATIC_ASSERT must be defined +#endif + +template <class T, class U> +struct is_same { enum { value = 0 }; }; + +template <class T> +struct is_same<T, T> { enum { value = 1 }; }; + +int foo() { return 0; } + +void test_noexcept() TEST_NOEXCEPT +{ +} + +void test_decltype() +{ + typedef TEST_DECLTYPE(foo()) MyType; + TEST_STATIC_ASSERT((is_same<MyType, int>::value), "is same"); +} + +void test_static_assert() +{ + TEST_STATIC_ASSERT((is_same<int, int>::value), "is same"); + TEST_STATIC_ASSERT((!is_same<int, long>::value), "not same"); +} + +int main() +{ + test_noexcept(); + test_decltype(); + test_static_assert(); +} diff --git a/libcxx/test/support/test_macros.h b/libcxx/test/support/test_macros.h new file mode 100644 index 00000000000..a08ca87be93 --- /dev/null +++ b/libcxx/test/support/test_macros.h @@ -0,0 +1,83 @@ +// -*- C++ -*- +//===---------------------------- test_macros.h ---------------------------===// +// +// 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. +// +//===----------------------------------------------------------------------===// + +#ifndef SUPPORT_TEST_MACROS_HPP +#define SUPPORT_TEST_MACROS_HPP + +#define TEST_CONCAT1(X, Y) X##Y +#define TEST_CONCAT(X, Y) TEST_CONCAT1(X, Y) + +#ifdef __has_extension +#define TEST_HAS_EXTENSION(X) __has_extension(X) +#else +#define TEST_HAS_EXTENSION(X) 0 +#endif + +/* Make a nice name for the standard version */ +#if __cplusplus <= 199711L +# define TEST_STD_VER 3 +#elif __cplusplus <= 201103L +# define TEST_STD_VER 11 +#elif __cplusplus <= 201402L +# define TEST_STD_VER 14 +#else +# define TEST_STD_VER 99 // greater than current standard +#endif + +/* Features that were introduced in C++11 */ +#if TEST_STD_VER >= 11 +#define TEST_HAS_RVALUE_REFERENCES +#define TEST_HAS_VARIADIC_TEMPLATES +#define TEST_HAS_INITIALIZER_LISTS +#define TEST_HAS_BASIC_CONSTEXPR +#endif + +/* Features that were introduced in C++14 */ +#if TEST_STD_VER >= 14 +#define TEST_HAS_EXTENDED_CONSTEXPR +#define TEST_HAS_VARIABLE_TEMPLATES +#endif + +/* Features that were introduced after C++14 */ +#if TEST_STD_VER > 14 +#endif + +#if TEST_HAS_EXTENSION(cxx_decltype) || TEST_STD_VER >= 11 +#define TEST_DECLTYPE(T) decltype(T) +#else +#define TEST_DECLTYPE(T) __typeof__(T) +#endif + +#if TEST_STD_VER >= 11 +#define TEST_NOEXCEPT noexcept +#else +#define TEST_NOEXCEPT +#endif + +#if TEST_HAS_EXTENSION(cxx_static_assert) || TEST_STD_VER >= 11 +# define TEST_STATIC_ASSERT(Expr, Msg) static_assert(Expr, Msg) +#else +# define TEST_STATIC_ASSERT(Expr, Msg) \ + typedef ::test_detail::static_assert_check<sizeof( \ + ::test_detail::static_assert_incomplete_test<(Expr)>)> \ + TEST_CONCAT(test_assert, __LINE__) +# +#endif + +namespace test_detail { + +template <bool> struct static_assert_incomplete_test; +template <> struct static_assert_incomplete_test<true> {}; +template <unsigned> struct static_assert_check {}; + +} // end namespace test_detail + + +#endif // SUPPORT_TEST_MACROS_HPP |
