https://bugs.llvm.org/show_bug.cgi?id=48002
Bug ID: 48002
Summary: Struct declarated by elaborated type specifier inside
another struct.
Product: clang
Version: trunk
Hardware: All
OS: All
Status: NEW
Severity: normal
Priority: P
Component: C++
Assignee: unassignedclangb...@nondot.org
Reporter: anders.granlun...@gmail.com
CC: blitzrak...@gmail.com, dgre...@apple.com,
erik.pilking...@gmail.com, llvm-bugs@lists.llvm.org,
richard-l...@metafoo.co.uk
Consider the following c++ program:
int main()
{
struct A
{
struct B *b;
};
using U = B;
}
Compile it with "-std=c++20 -pedantic-errors".
Clang rejects it with the following error
message: "unknown type name 'B': using U = B;".
Note that the gcc compiler correctly accepts it.
I tried to report this as a gcc bug before, but it turned out that the gcc
behaviour is correct ( see https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97569
).
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