https://bugs.llvm.org/show_bug.cgi?id=44531
Reid Kleckner <[email protected]> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
CC| |[email protected]
Resolution|--- |INVALID
--- Comment #1 from Reid Kleckner <[email protected]> ---
The intention of the warning is to indicate that, on Linux, you are not
friending the global class S, but you are declaring a class N::S, which will
friend N::SS. MSVC will instead friend class ::S, and clang-cl does this.
Consider:
https://godbolt.org/z/yZbeVt
class S;
namespace N
{
class SS
{
friend class S;
static int gv;
};
}
class S {
int usePriv() { return N::SS::gv; }
};
MSVC and clang-cl accept, regular clang on Linux rejects. Clang on Windows is
trying to warn you about that non-standard behavior. Seems to be working as
intended.
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