2010-08-22 02:59:46 +02:00
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
//
|
|
|
|
// The LLVM Compiler Infrastructure
|
|
|
|
//
|
2010-11-16 23:09:02 +01:00
|
|
|
// This file is dual licensed under the MIT and the University of Illinois Open
|
|
|
|
// Source Licenses. See LICENSE.TXT for details.
|
2010-08-22 02:59:46 +02:00
|
|
|
//
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
|
|
|
|
// <functional>
|
|
|
|
|
|
|
|
// reference_wrapper
|
|
|
|
|
|
|
|
// template <class... ArgTypes>
|
|
|
|
// requires Callable<T, ArgTypes&&...>
|
|
|
|
// Callable<T, ArgTypes&&...>::result_type
|
|
|
|
// operator()(ArgTypes&&... args) const;
|
|
|
|
|
|
|
|
#include <functional>
|
|
|
|
#include <cassert>
|
|
|
|
|
|
|
|
// member data pointer: cv qualifiers should transfer from argument to return type
|
|
|
|
|
|
|
|
struct A_int_1
|
|
|
|
{
|
|
|
|
A_int_1() : data_(5) {}
|
|
|
|
|
|
|
|
int data_;
|
|
|
|
};
|
|
|
|
|
|
|
|
void
|
|
|
|
test_int_1()
|
|
|
|
{
|
|
|
|
// member data pointer
|
|
|
|
{
|
|
|
|
int A_int_1::*fp = &A_int_1::data_;
|
|
|
|
std::reference_wrapper<int A_int_1::*> r1(fp);
|
|
|
|
A_int_1 a;
|
|
|
|
assert(r1(a) == 5);
|
|
|
|
r1(a) = 6;
|
|
|
|
assert(r1(a) == 6);
|
|
|
|
const A_int_1* ap = &a;
|
|
|
|
assert(r1(ap) == 6);
|
|
|
|
r1(ap) = 7;
|
|
|
|
assert(r1(ap) == 7);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
int main()
|
|
|
|
{
|
|
|
|
test_int_1();
|
|
|
|
}
|