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 Fn, CopyConstructible... Types> 13 // unspecified bind(Fn, Types...); 14 // template<Returnable R, CopyConstructible Fn, CopyConstructible... Types> 15 // unspecified bind(Fn, Types...); 16 17 // http://llvm.org/bugs/show_bug.cgi?id=16385 18 19 #include <functional> 20 #include <cmath> 21 #include <cassert> 22 23 float _pow(float a, float b) 24 { 25 return std::pow(a, b); 26 } 27 28 int main() 29 { 30 std::function<float(float, float)> fnc = _pow; 31 auto task = std::bind(fnc, 2.f, 4.f); 32 auto task2(task); 33 assert(task() == 16); 34 assert(task2() == 16); 35 } 36
