1//===----------------------------------------------------------------------===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is dual licensed under the MIT and the University of Illinois Open 6// Source Licenses. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9 10// <memory> 11 12// template <ObjectType T> T* addressof(T& r); 13 14#include <memory> 15#include <cassert> 16 17struct A 18{ 19 void operator&() const {} 20}; 21 22struct nothing { 23 operator char&() 24 { 25 static char c; 26 return c; 27 } 28}; 29 30int main() 31{ 32 { 33 int i; 34 double d; 35 assert(std::addressof(i) == &i); 36 assert(std::addressof(d) == &d); 37 A* tp = new A; 38 const A* ctp = tp; 39 assert(std::addressof(*tp) == tp); 40 assert(std::addressof(*ctp) == tp); 41 delete tp; 42 } 43 { 44 union 45 { 46 nothing n; 47 int i; 48 }; 49 assert(std::addressof(n) == (void*)std::addressof(i)); 50 } 51} 52