Mercurial > hg > CbC > CbC_gcc
diff gcc/testsuite/g++.dg/concepts/alias4.C @ 111:04ced10e8804
gcc 7
author | kono |
---|---|
date | Fri, 27 Oct 2017 22:46:09 +0900 |
parents | |
children | 84e7813d76e9 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gcc/testsuite/g++.dg/concepts/alias4.C Fri Oct 27 22:46:09 2017 +0900 @@ -0,0 +1,19 @@ +// { dg-options "-std=c++17 -fconcepts" } + +template<typename T> + concept bool C() { return __is_class(T); } + +template<typename T> + requires C<T>() + using X = T*; + +// BUG: Alias templates are expanded at the point of use, regardless +// of whether or not they are dependent. This causes T* to be substituted +// without acutally checking the constraints. +template<typename T> + using Y = X<T>; + +int main() +{ + Y<int> y1; // { dg-error "" "" { xfail *-*-* } } +}