https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53660
--- Comment #2 from David Krauss <potswa at mac dot com> --- (In reply to Andrew Pinski from comment #1) > I don't think this is a bug. Right, the behavior looks correct. As for a nested-name-specifier working in this context, it works if it's not dependent. As for the declaration being a function template, it works as long as the conversion-type-id is not dependent. Oddly, a dependent conversion-type-id *is* allowed when the function is not templated. Anyway, the standard says to inspect the conversion function declarations and find the ones referring to function (-pointer, -reference) types. That doesn't admit application of template default arguments, as implicit or explicit conversion does.
