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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// <functional>
// class function<R(ArgTypes...)>
// R 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_;
A_int_1 a;
std::function<int& (const A_int_1*)> r2(fp);
const A_int_1* ap = &a;
assert(r2(ap) == 6);
r2(ap) = 7;
assert(r2(ap) == 7);
}
}
int main()
{
test_int_1();
}
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