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c++: Add testcase for already fixed PR [PR103443]

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Fixed by r12-7264.

	PR c++/103443

gcc/testsuite/ChangeLog:

	* g++.dg/cpp2a/consteval29.C: New test.
This commit is contained in:
Patrick Palka 2022-03-04 10:17:30 -05:00
parent 73baba1ae1
commit 074d283e24
1 changed files with 20 additions and 0 deletions
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gcc/testsuite/g++.dg/cpp2a/consteval29.C Normal file
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// PR c++/103443
// { dg-do compile { target c++20 } }
template<int...>
struct A { };
template<int... Is>
consteval unsigned index_sequence2mask(A<Is...>) {
if constexpr (sizeof...(Is) == 0u)
return 0u;
else
return ((1u << Is) | ...);
}
template<unsigned Mask = index_sequence2mask(A<1,2,3>{})>
void use_mask();
int main() {
use_mask();
}