1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 // UNSUPPORTED: c++03, c++11, c++14
10 
11 // <memory>
12 
13 // template <ObjectType T> constexpr T* addressof(T& r);
14 
15 #include <memory>
16 #include <cassert>
17 
18 #include "test_macros.h"
19 
20 struct Pointer {
PointerPointer21   constexpr Pointer(void* v) : value(v) {}
22   void* value;
23 };
24 
25 struct A
26 {
AA27     constexpr A() : n(42) {}
operator &A28     void operator&() const { }
29     int n;
30 };
31 
32 constexpr int i = 0;
33 constexpr double d = 0.0;
34 constexpr A a{};
35 
main(int,char **)36 int main(int, char**)
37 {
38     static_assert(std::addressof(i) == &i, "");
39     static_assert(std::addressof(d) == &d, "");
40     constexpr const A* ap = std::addressof(a);
41     static_assert(&ap->n == &a.n, "");
42 
43   return 0;
44 }
45