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//===----------------------------------------------------------------------===//
//
// 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.
//
//===----------------------------------------------------------------------===//
// type_traits
// underlying_type
#include <type_traits>
#include <climits>
#include "test_macros.h"
enum E { V = INT_MIN };
#if !defined(_WIN32) || defined(__MINGW32__)
#define TEST_UNSIGNED_UNDERLYING_TYPE 1
#else
#define TEST_UNSIGNED_UNDERLYING_TYPE 0 // MSVC's ABI doesn't follow the Standard
#endif
#if TEST_UNSIGNED_UNDERLYING_TYPE
enum F { W = UINT_MAX };
#endif // TEST_UNSIGNED_UNDERLYING_TYPE
int main()
{
static_assert((std::is_same<std::underlying_type<E>::type, int>::value),
"E has the wrong underlying type");
#if TEST_UNSIGNED_UNDERLYING_TYPE
static_assert((std::is_same<std::underlying_type<F>::type, unsigned>::value),
"F has the wrong underlying type");
#endif // TEST_UNSIGNED_UNDERLYING_TYPE
#if TEST_STD_VER > 11
static_assert((std::is_same<std::underlying_type_t<E>, int>::value), "");
#if TEST_UNSIGNED_UNDERLYING_TYPE
static_assert((std::is_same<std::underlying_type_t<F>, unsigned>::value), "");
#endif // TEST_UNSIGNED_UNDERLYING_TYPE
#endif // TEST_STD_VER > 11
#if TEST_STD_VER >= 11
enum G : char { };
static_assert((std::is_same<std::underlying_type<G>::type, char>::value),
"G has the wrong underlying type");
#if TEST_STD_VER > 11
static_assert((std::is_same<std::underlying_type_t<G>, char>::value), "");
#endif // TEST_STD_VER > 11
#endif // TEST_STD_VER >= 11
}
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