Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/cpp2a/concepts-requires8.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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// { dg-do compile { target c++2a } } template <class T, class U> concept C = requires (T t, U u) { t + u; }; // { dg-message "in requirements" } template <class T, class U> requires C<T,U> void f(T t, U u) { t + u; } struct non_addable { }; int main() { // FIXME: This diagnostic is being emitted twice, when it should // be emitted just once. using U = decltype(f(42, non_addable{})); // { dg-error "" } }