common_type.pass.cpp revision c52f43e72dfcea03037729649da84c23b3beb04a
1//===----------------------------------------------------------------------===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9 10// type_traits 11 12// common_type 13 14#include <type_traits> 15 16int main() 17{ 18 static_assert((std::is_same<std::common_type<int>::type, int>::value), ""); 19 static_assert((std::is_same<std::common_type<char>::type, char>::value), ""); 20 21 static_assert((std::is_same<std::common_type<double, char>::type, double>::value), ""); 22 static_assert((std::is_same<std::common_type<short, char>::type, int>::value), ""); 23 24 static_assert((std::is_same<std::common_type<double, char, long long>::type, double>::value), ""); 25 static_assert((std::is_same<std::common_type<unsigned, char, long long>::type, long long>::value), ""); 26} 27