https://bugs.llvm.org/show_bug.cgi?id=40465
Bug ID: 40465
Summary: CTAD on variable with parenthesized initializer
Product: clang
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: C++'17
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected],
[email protected], [email protected]
template <typename = void>
struct Foo {};
int main() {
Foo f; // everyone accepts
Foo (g); // clang rejects
// gcc accepts, edg accepts, msvc accepts
}
clang says:
error: cannot use parentheses when declaring variable with deduced class
template specialization type
This seems to be a highly specific error message but I can't see why this would
be disallowed. [dcl.type.class.deduct] seems to allow `g`, but again since the
message is so specific, I don't know. The other three compilers accept the
code.
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