copy.pass.cpp revision 099dec1ba0a48c1b033565be651ca37b24c3ebca 
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
23float _pow(float a, float b)
24{
25    return std::pow(a, b);
26}
27
28int 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