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view gcc/testsuite/g++.dg/cpp2a/concepts-pr66091.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++/66091 // { dg-do compile { target c++17_only } } // { dg-additional-options "-fconcepts" } template<typename T> concept bool C1() { return requires() { typename T::type1; }; } template<typename T> concept bool C2() { return C1<T>() && requires() { typename T::type2; }; } template<C1 T> struct S { S& operator++() { return *this; } S& operator++() requires C2<T>() { return *this; } };