Mercurial > hg > CbC > CbC_gcc

comparison gcc/testsuite/g++.dg/concepts/fn1.C @ 111:04ced10e8804

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gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
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children 84e7813d76e9
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68:561a7518be6b 111:04ced10e8804
1 // { dg-options "-std=c++17 -fconcepts" }
2
3 template<typename T>
4 concept bool C() { return __is_class(T); }
5
6 struct S { } s;
7
8 template<typename T>
9 requires C<T>()
10 void f(T x) { }
11
12 // Calls are valid when arguments are dependent,
13 template<typename T>
14 void g(T x) { f(x); }
15
16 // Calls are checked when arguments are non-dependent.
17 template<typename T>
18 void h(T x) {
19 f(s);
20 }
21
22 int main() {
23 f(s);
24 g(s);
25 }