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 // UNSUPPORTED: c++98, c++03
11
12 // <functional>
13
14 // template<CopyConstructible Fn, CopyConstructible... Types>
15 // unspecified bind(Fn, Types...);
16 // template<Returnable R, CopyConstructible Fn, CopyConstructible... Types>
17 // unspecified bind(Fn, Types...);
18
19 // http://llvm.org/bugs/show_bug.cgi?id=16385
20
21 #include <functional>
22 #include <cmath>
23 #include <cassert>
24
_pow(float a,float b)25 float _pow(float a, float b)
26 {
27 return std::pow(a, b);
28 }
29
main()30 int main()
31 {
32 std::function<float(float, float)> fnc = _pow;
33 auto task = std::bind(fnc, 2.f, 4.f);
34 auto task2(task);
35 assert(task() == 16);
36 assert(task2() == 16);
37 }
38