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 #include <cstddef> 11 #include <type_traits> 12 13 // ptrdiff_t should: 14 15 // 1. be in namespace std. 16 // 2. be the same sizeof as void*. 17 // 3. be a signed integral. 18 19 int main() 20 { 21 static_assert(sizeof(std::ptrdiff_t) == sizeof(void*), 22 "sizeof(std::ptrdiff_t) == sizeof(void*)"); 23 static_assert(std::is_signed<std::ptrdiff_t>::value, 24 "std::is_signed<std::ptrdiff_t>::value"); 25 static_assert(std::is_integral<std::ptrdiff_t>::value, 26 "std::is_integral<std::ptrdiff_t>::value"); 27 } 28
