Mercurial > hg > CbC > CbC_gcc

annotate gcc/testsuite/g++.dg/concepts/class6.C @ 145:1830386684a0

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
gcc-9.2.0
author anatofuz
date Thu, 13 Feb 2020 11:34:05 +0900
parents 84e7813d76e9
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
145
1830386684a0 gcc-9.2.0
anatofuz
parents: 131
diff changeset
1 // { dg-do compile { target c++17_only } }
131
84e7813d76e9 gcc-8.2
mir3636
parents: 111
diff changeset
2 // { dg-options "-fconcepts" }
111
kono
parents:
diff changeset
3
kono
parents:
diff changeset
4 template<typename T>
kono
parents:
diff changeset
5 concept bool One() { return sizeof(T) >= 4; }
kono
parents:
diff changeset
6
kono
parents:
diff changeset
7 template<typename T>
kono
parents:
diff changeset
8 concept bool Two() { return One<T>() && sizeof(T) >= 8; }
kono
parents:
diff changeset
9
kono
parents:
diff changeset
10 // Check that there is no ecsacpe hatch
kono
parents:
diff changeset
11 template<Two T> struct S4 { };
kono
parents:
diff changeset
12 template<One T> struct S4<T> { }; // { dg-error "does not specialize" }
kono
parents:
diff changeset
13
kono
parents:
diff changeset
14 struct one_type { char x[4]; };
kono
parents:
diff changeset
15
kono
parents:
diff changeset
16 // Constraints are checked even when decls are not instantiatied.
kono
parents:
diff changeset
17 S4<one_type>* x4b; // { dg-error "constraint|invalid" }