52 lines
1.0 KiB
C++
52 lines
1.0 KiB
C++
//===----------------------------------------------------------------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is dual licensed under the MIT and the University of Illinois Open
|
|
// Source Licenses. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// <functional>
|
|
|
|
// template<CopyConstructible Fn, CopyConstructible... Types>
|
|
// unspecified bind(Fn, Types...);
|
|
// template<Returnable R, CopyConstructible Fn, CopyConstructible... Types>
|
|
// unspecified bind(Fn, Types...);
|
|
|
|
// http://llvm.org/bugs/show_bug.cgi?id=16343
|
|
|
|
#include <cmath>
|
|
#include <functional>
|
|
#include <cassert>
|
|
|
|
struct power
|
|
{
|
|
template <typename T>
|
|
T
|
|
operator()(T a, T b)
|
|
{
|
|
return std::pow(a, b);
|
|
}
|
|
};
|
|
|
|
struct plus_one
|
|
{
|
|
template <typename T>
|
|
T
|
|
operator()(T a)
|
|
{
|
|
return a + 1;
|
|
}
|
|
};
|
|
|
|
int
|
|
main()
|
|
{
|
|
using std::placeholders::_1;
|
|
|
|
auto g = std::bind(power(), 2, _1);
|
|
assert(g(5) == 32);
|
|
assert(std::bind(plus_one(), g)(5) == 33);
|
|
}
|