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// RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -std=c++11 -verify %s
// expected-no-diagnostics
struct true_type {
static constexpr const bool value = true;
};
struct false_type {
static constexpr const bool value = false;
};
template <class _Tp, class _Up> struct is_same : public false_type {};
template <class _Tp> struct is_same<_Tp, _Tp> : public true_type {};
// Check that our 'is_same' works.
static_assert(is_same<char, char>::value, "is_same is broken");
static_assert(!is_same<char, char *>::value, "is_same is broken");
template <class _Tp, unsigned _AlignOf, unsigned _SizeOf>
struct check_type {
static constexpr const bool value =
(alignof(_Tp) == _AlignOf) && (sizeof(_Tp) == _SizeOf);
};
//===----------------------------------------------------------------------===//
// Fundamental types
//===----------------------------------------------------------------------===//
static_assert(check_type<bool, 1, 1>::value, "bool is wrong");
static_assert(check_type<char, 1, 1>::value, "char is wrong");
static_assert(check_type<signed char, 1, 1>::value, "signed char is wrong");
static_assert(check_type<unsigned char, 1, 1>::value, "unsigned char is wrong");
static_assert(check_type<char16_t, 2, 2>::value, "char16_t is wrong");
static_assert(check_type<char32_t, 4, 4>::value, "char32_t is wrong");
static_assert(check_type<wchar_t, 4, 4>::value, "wchar_t is wrong");
static_assert(check_type<short, 2, 2>::value, "short is wrong");
static_assert(check_type<unsigned short, 2, 2>::value, "unsigned short is wrong");
static_assert(check_type<int, 4, 4>::value, "int is wrong");
static_assert(check_type<unsigned int, 4, 4>::value, "unsigned int is wrong");
static_assert(check_type<long, 8, 8>::value, "long is wrong");
static_assert(check_type<unsigned long, 8, 8>::value, "unsigned long is wrong");
static_assert(check_type<long long, 8, 8>::value, "long long is wrong");
static_assert(check_type<unsigned long long, 8, 8>::value, "unsigned long long is wrong");
static_assert(check_type<float, 4, 4>::value, "float is wrong");
static_assert(check_type<double, 8, 8>::value, "double is wrong");
static_assert(check_type<long double, 16, 16>::value, "long double is wrong");
static_assert(check_type<void *, 8, 8>::value, "'void *' is wrong");
static_assert(check_type<int (*)(int), 8, 8>::value, "function pointer is wrong");
//===----------------------------------------------------------------------===//
// stdarg.h
//===----------------------------------------------------------------------===//
#include <stdarg.h>
static_assert(check_type<va_list, 8, 24>::value, "va_list is wrong");
//===----------------------------------------------------------------------===//
// stddef.h
//===----------------------------------------------------------------------===//
#define __STDC_WANT_LIB_EXT1__ 1
#include <stddef.h>
static_assert(is_same<long int, ::ptrdiff_t>::value, "::ptrdiff_t is wrong");
static_assert(is_same<decltype(sizeof(char)), ::size_t>::value, "::size_t is wrong");
static_assert(is_same<long unsigned int, ::size_t>::value, "::size_t is wrong");
static_assert(is_same<long unsigned int, ::rsize_t>::value, "::rsize_t is wrong");
static_assert(is_same<long double, ::max_align_t>::value, "::max_align_t is wrong");
#define __need_wint_t
#include <stddef.h>
static_assert(is_same<int, ::wint_t>::value, "::wint_t is wrong");
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