File: member_data.pass.cpp

package info (click to toggle)
llvm-toolchain-19 1%3A19.1.7-3~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm-proposed-updates
  • size: 1,998,492 kB
  • sloc: cpp: 6,951,680; ansic: 1,486,157; asm: 913,598; python: 232,024; f90: 80,126; objc: 75,281; lisp: 37,276; pascal: 16,990; sh: 10,009; ml: 5,058; perl: 4,724; awk: 3,523; makefile: 3,167; javascript: 2,504; xml: 892; fortran: 664; cs: 573
file content (51 lines) | stat: -rw-r--r-- 1,015 bytes parent folder | download | duplicates (16) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
 
//===----------------------------------------------------------------------===//
//
// 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>

// template<Returnable R, class T> unspecified mem_fn(R T::* pm);

#include <functional>
#include <cassert>

#include "test_macros.h"

struct A
{
    double data_;
};

template <class F>
TEST_CONSTEXPR_CXX20 bool
test(F f)
{
    {
    A a = {0.0};
    f(a) = 5;
    assert(a.data_ == 5);
    A* ap = &a;
    f(ap) = 6;
    assert(a.data_ == 6);
    const A* cap = ap;
    assert(f(cap) == f(ap));
    const F& cf = f;
    assert(cf(ap) == f(ap));
    }
    return true;
}

int main(int, char**)
{
    test(std::mem_fn(&A::data_));

#if TEST_STD_VER >= 20
    static_assert(test(std::mem_fn(&A::data_)));
#endif

    return 0;
}