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annotate gcc/testsuite/g++.dg/cpp2a/concepts4.C @ 145:1830386684a0

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gcc-9.2.0
author anatofuz
date Thu, 13 Feb 2020 11:34:05 +0900
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145
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1 // { dg-do compile { target c++2a } }
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2
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3 template <class T> struct A { static const int x = 42; };
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4
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5 template <class Ta> concept A42 = A<Ta>::x == 42;
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6 template <class Tv> concept Void = __is_same_as(Tv, void);
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7 template <class Tb, class Ub> concept A42b = Void<Tb> || A42<Ub>;
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8 template <class Tc> concept R42c = A42b<Tc, Tc&>;
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9
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10 static_assert (R42c<void>);