Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/cpp2a/class-deduction-alias2.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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// Test that a non-template deduction guide that doesn't match the alias is // ignored. // { dg-do compile { target c++2a } } template <class T> struct identity { using type = T; }; template <class T> using identity_t = typename identity<T>::type; template <class T, class U> struct C { C(T, U); // #1 }; C(char*, char*) -> C<int,int>; // #3 template<class V> using A = C<V *, V *>; char c; A a4 (&c, &c); // ignores #3 because C<int,int> is not an A<V> static_assert (__is_same_as(decltype(a4),A<char>)); C c2 (&c, &c); // { dg-error "conversion" } deduces with #3