https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58091

S. Davis Herring <herring at lanl dot gov> changed:

           What    |Removed                     |Added
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                 CC|                            |herring at lanl dot gov

--- Comment #6 from S. Davis Herring <herring at lanl dot gov> ---
The lookup is ambiguous: generally a < forces ordinary lookup to take place,
even in contexts like declarator-ids where sometimes other possibilities apply
(like defining a hidden friend).  (ADL can still rescue "f<0>(x)", but only
because nowadays there is a rule to form a template-id there if f isn't found
by lookup at all.)  The language does not in general filter lookup
possibilities by which results would work in the syntactic context.

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