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view gcc/testsuite/g++.dg/cpp2a/concepts-pr67427.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++/67427 // { dg-do compile { target c++2a } } // { dg-additional-options "-fconcepts-ts" } template <class S, class I> concept bool Sentinel = requires (I i) { i; }; template <class I, class S> concept bool SizedIteratorRange = Sentinel<S, I> && true; Sentinel{S, I} void distance(I first, S last) {} template <class I, class S> requires SizedIteratorRange<I, S> void distance(I first, S last) {} int main() { distance(42, 43); // { dg-error "ambiguous" } }