Mercurial > hg > CbC > CbC_gcc
comparison gcc/testsuite/g++.dg/cpp2a/concepts-pr88395.C @ 145:1830386684a0
gcc-9.2.0
| author | anatofuz |
|---|---|
| date | Thu, 13 Feb 2020 11:34:05 +0900 |
| parents | |
| children |
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| 131:84e7813d76e9 | 145:1830386684a0 |
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| 1 // { dg-do compile { target c++2a } } | |
| 2 | |
| 3 template <class T, class U> | |
| 4 concept Concept2 = requires (T t, U u) | |
| 5 { | |
| 6 t += u; // { dg-error "template instantiation depth" } | |
| 7 }; | |
| 8 | |
| 9 template <class T> | |
| 10 concept Concept = Concept2 <T, T>; | |
| 11 | |
| 12 struct S | |
| 13 { | |
| 14 template <Concept T> | |
| 15 constexpr S& operator += (T o); | |
| 16 }; | |
| 17 | |
| 18 constexpr S operator * (S a, S b) | |
| 19 { | |
| 20 return a += b; | |
| 21 } | |
| 22 | |
| 23 // { dg-prune-output "compilation terminated" } |