constexpr_addressof.pass.cpp (967B)
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 // UNSUPPORTED: c++98, c++03, c++11, c++14 11 // XFAIL: gcc-4, gcc-5, gcc-6 12 13 // <memory> 14 15 // template <ObjectType T> constexpr T* addressof(T& r); 16 17 #include <memory> 18 #include <cassert> 19 20 struct Pointer { 21 constexpr Pointer(void* v) : value(v) {} 22 void* value; 23 }; 24 25 struct A 26 { 27 constexpr A() : n(42) {} 28 void operator&() const { } 29 int n; 30 }; 31 32 constexpr int i = 0; 33 constexpr double d = 0.0; 34 constexpr A a{}; 35 36 int main() 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 }