ptr_fun1.cxx1z.fail.cpp (740B)
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 <CopyConstructible Arg, Returnable Result> 13 // pointer_to_unary_function<Arg, Result> 14 // ptr_fun(Result (*f)(Arg)); 15 // UNSUPPORTED: c++98, c++03, c++11, c++14 16 17 #include <functional> 18 #include <type_traits> 19 #include <cassert> 20 21 #include "test_macros.h" 22 23 double unary_f(int i) {return 0.5 - i;} 24 25 int main() 26 { 27 assert(std::ptr_fun(unary_f)(36) == -35.5); 28 }