Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/cpp1z/launder3.C @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
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date | Thu, 25 Oct 2018 07:37:49 +0900 |
parents | 04ced10e8804 |
children |
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// { 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); }