Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/cpp0x/temp-extend2.C @ 145:1830386684a0
gcc-9.2.0
author | anatofuz |
---|---|
date | Thu, 13 Feb 2020 11:34:05 +0900 |
parents | |
children |
line wrap: on
line source
// PR c++/92831 // { dg-do run { target c++11 } } template<typename T> using id = T; struct S { S () { s++; } ~S () { s--; } S (int) { s++; } static int s; }; int S::s = 0; void bar (bool cond, bool cond2) { if (S::s != (cond ? cond2 ? 7 : 5 : cond2 ? 8 : 9)) __builtin_abort (); } void foo (bool cond, bool cond2) { int i = 1; // temporary array has same lifetime as a S&& a = id<S[3]>{1, 2, 3}[i]; // temporary S has same lifetime as b const S& b = static_cast<const S&>(0); // exactly one of the four temporaries is lifetime-extended S&& c = cond ? cond2 ? id<S[3]>{1, 2, 3}[i] : static_cast<S&&>(0) : cond2 ? id<S[4]>{1, 2, 3, 4}[i] : id<S[5]>{1, 2, 3, 4, 5}[i]; bar (cond, cond2); } int main () { foo (true, true); foo (true, false); foo (false, true); foo (false, false); }