Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/cpp2a/constexpr-dynamic3.C @ 145:1830386684a0
gcc-9.2.0
author | anatofuz |
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date | Thu, 13 Feb 2020 11:34:05 +0900 |
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// PR c++/88337 - Implement P1327R1: Allow dynamic_cast/typeid in constexpr. // { dg-do compile { target c++2a } } // Sidecast. struct A { virtual void afn () {} }; struct B { virtual void bfn () {} }; struct D : A, B { }; constexpr bool fn () { bool ok = true; D d; A *a = &d; if (B *bp = dynamic_cast<B*>(a)) /*OK*/; else ok = false; A &ar = d; B &br = dynamic_cast<B&>(ar); return ok; } static_assert(fn ());