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annotate gcc/testsuite/g++.dg/concepts/placeholder3.C @ 145:1830386684a0

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gcc-9.2.0
author anatofuz
date Thu, 13 Feb 2020 11:34:05 +0900
parents 84e7813d76e9
children
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1 // PR c++/66218
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2 // { dg-do compile { target c++17_only } }
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3 // { dg-options "-fconcepts" }
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5 template <class T, class U>
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6 concept bool Same = __is_same_as(T, U);
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8 template <class T>
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9 concept bool C =
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10 requires { // { dg-message "in requirements" }
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11 { 0 } -> Same<T>; // { dg-message "does not satisfy" }
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12 };
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14 template <C c>
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15 constexpr bool f() { return true; }
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17 static_assert(f<double>(), ""); // { dg-error "" }
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18 static_assert(f<int>(), "");