https://bugs.llvm.org/show_bug.cgi?id=51402
Bug ID: 51402
Summary: Incomplete type allowed for returned brace initialized
unique_ptr
Product: clang
Version: 12.0
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: C++11
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected],
[email protected], [email protected],
[email protected]
I've checked previous versions and seems it's not a regression.
Returning unique_ptr<incomplete_type>{} vs {} (which should be equivalent)
either compiles or not. Trying to assign that returnred value actually triggers
a compilation error, too.
https://godbolt.org/z/qer8eczhx
#include <memory>
struct incomplete;
std::unique_ptr<incomplete> u()
{
return {}; //this compiles
// return std::unique_ptr<incomplete>{};// this one gives an error
}
int main(int, char*[])
{
// auto x=u(); // this also gives compilation error
return 0;
}
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