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//===----------------------------------------------------------------------===//
//
// 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>
// 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();
}
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