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 // <memory> 10 11 // template <ObjectType T> T* addressof(T& r); 12 13 #include <memory> 14 #include <cassert> 15 16 #include "test_macros.h" 17 18 struct A 19 { operator &A20 void operator&() const {} 21 }; 22 23 struct nothing { operator char¬hing24 operator char&() 25 { 26 static char c; 27 return c; 28 } 29 }; 30 main(int,char **)31int main(int, char**) 32 { 33 { 34 int i; 35 double d; 36 assert(std::addressof(i) == &i); 37 assert(std::addressof(d) == &d); 38 A* tp = new A; 39 const A* ctp = tp; 40 assert(std::addressof(*tp) == tp); 41 assert(std::addressof(*ctp) == tp); 42 delete tp; 43 } 44 { 45 union 46 { 47 nothing n; 48 int i; 49 }; 50 assert(std::addressof(n) == (void*)std::addressof(i)); 51 } 52 53 return 0; 54 } 55