Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/concepts/pr71368.C @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
---|---|
date | Thu, 25 Oct 2018 07:37:49 +0900 |
parents | 04ced10e8804 |
children |
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// { dg-do compile { target c++17 } } // { dg-options "-fconcepts" } struct inner; template<typename X> concept bool CompoundReq = requires { // fine with concrete type in trailing type, i.e. inner& instead of X& { X::inner_member() } -> X&; }; template<typename X> concept bool Concept = requires { { X::outer_member() } -> CompoundReq; }; struct inner { static inner& inner_member(); }; struct outer { static inner outer_member(); }; int main() { // fine static_assert( CompoundReq<inner> ); static_assert( CompoundReq<decltype( outer::outer_member() )> ); // ICE static_assert( Concept<outer> ); }