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 // <functional> 11 12 // template <class Arg, class Result> 13 // struct unary_function 14 // { 15 // typedef Arg argument_type; 16 // typedef Result result_type; 17 // }; 18 19 #include <functional> 20 #include <type_traits> 21 22 int main() 23 { 24 static_assert((std::is_same<std::unary_function<unsigned, char>::argument_type, unsigned>::value), ""); 25 static_assert((std::is_same<std::unary_function<unsigned, char>::result_type, char>::value), ""); 26 } 27