Mercurial > hg > CbC > CbC_gcc
annotate gcc/testsuite/g++.dg/concepts/alias4.C @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
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date | Thu, 25 Oct 2018 07:37:49 +0900 |
parents | 04ced10e8804 |
children |
rev | line source |
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131 | 1 // { dg-do compile { target c++17 } } |
2 // { dg-options "-fconcepts" } | |
111 | 3 |
4 template<typename T> | |
5 concept bool C() { return __is_class(T); } | |
6 | |
7 template<typename T> | |
8 requires C<T>() | |
9 using X = T*; | |
10 | |
11 // BUG: Alias templates are expanded at the point of use, regardless | |
12 // of whether or not they are dependent. This causes T* to be substituted | |
13 // without acutally checking the constraints. | |
14 template<typename T> | |
15 using Y = X<T>; | |
16 | |
17 int main() | |
18 { | |
19 Y<int> y1; // { dg-error "" "" { xfail *-*-* } } | |
20 } |