Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/cpp1z/launder3.C @ 152:2b5abeee2509
update gcc11
author | anatofuz |
---|---|
date | Mon, 25 May 2020 07:50:57 +0900 |
parents | 04ced10e8804 |
children |
line wrap: on
line source
// { dg-do run { target c++11 } } // { dg-additional-options "-O2" } #include <cassert> void * operator new (decltype (sizeof (0)), void *p) { return p; } namespace std { template <typename T> T * launder (T *p) { return __builtin_launder (p); } } struct A { const int x; }; struct B { A a; }; int main () { B b{{42}}; new (&b.a) A{666}; assert(std::launder(&b.a)->x == 666); }