Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/cpp2a/concepts-explicit-inst2.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<typename T> concept C = __is_class(T); template<typename T> concept D = C<T> && __is_empty(T); struct X { }; struct Y { int n; }; template<typename T> struct S { void f1() { } }; // #1 template<C T> struct S<T> { void f2() { } }; // #2 template<D T> struct S<T> { void f3() { } }; // #3 template struct S<int>; // Instantiate #1 template struct S<X>; // Instantiate #2 template struct S<Y>; // Instantiate #2 int main() { S<int> i; i.f1(); S<X> x; x.f3(); S<Y> y; y.f2(); }