https://bugs.llvm.org/show_bug.cgi?id=37864
Bug ID: 37864
Summary: requested alignment is dependent but declaration is
not dependent
Product: clang
Version: unspecified
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: C++
Assignee: unassignedclangb...@nondot.org
Reporter: zhong...@pku.org.cn
CC: dgre...@apple.com, llvm-bugs@lists.llvm.org
The code is as follow:
template <int N>
void test() {
constexpr int N2 = N;
typedef int T alignas(N2);
// error: requested alignment is not an integer constant
}
int main() {
test<4>();
return 0;
}
clang++ rejects it with an error message:
error: requested alignment is dependent but declaration is not dependent
typedef int T alignas(N2);
^ ~~
The code comes from a gcc bug report:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56871
A previous version of g++ also rejects the code, but it is fixed.
Would you please check whether it indicates a bug in clang?
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