Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/concepts/placeholder3.C @ 158:494b0b89df80 default tip
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author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
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date | Mon, 25 May 2020 18:13:55 +0900 |
parents | 1830386684a0 |
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// PR c++/66218 // { dg-do compile { target c++17_only } } // { dg-options "-fconcepts" } template <class T, class U> concept bool Same = __is_same_as(T, U); template <class T> concept bool C = requires { // { dg-message "in requirements" } { 0 } -> Same<T>; // { dg-message "does not satisfy" } }; template <C c> constexpr bool f() { return true; } static_assert(f<double>(), ""); // { dg-error "" } static_assert(f<int>(), "");