align_val_t.pass.cpp (1183B)
1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // enum class align_val_t : size_t {} 11 12 // UNSUPPORTED: c++98, c++03, c++11, c++14 13 14 #include <new> 15 16 #include "test_macros.h" 17 18 int main() { 19 { 20 static_assert(std::is_enum<std::align_val_t>::value, ""); 21 static_assert(std::is_same<std::underlying_type<std::align_val_t>::type, std::size_t>::value, ""); 22 static_assert(!std::is_constructible<std::align_val_t, std::size_t>::value, ""); 23 static_assert(!std::is_constructible<std::size_t, std::align_val_t>::value, ""); 24 } 25 { 26 constexpr auto a = std::align_val_t(0); 27 constexpr auto b = std::align_val_t(32); 28 constexpr auto c = std::align_val_t(-1); 29 static_assert(a != b, ""); 30 static_assert(a == std::align_val_t(0), ""); 31 static_assert(b == std::align_val_t(32), ""); 32 static_assert(static_cast<std::size_t>(c) == (std::size_t)-1, ""); 33 } 34 }