[llvm-bugs] [Bug 41785] Making class template breaks compilation

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=41785

Richard Smith <richard-llvm at metafoo.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |INVALID
             Status|NEW                         |RESOLVED

--- Comment #4 from Richard Smith <richard-llvm at metafoo.co.uk> ---
This program violates http://eel.is/c++draft/basic.scope.class#2:

"A name N used in a class S shall refer to the same declaration in its context
and when re-evaluated in the completed scope of S. No diagnostic is required
for a violation of this rule."

... because the name e would refer to a different declaration of evaluated in
the complete class scope.

This is a particularly odd manifestation of this rule; when parsing the
template we decide the two members are declaring the same function because
their lookups cannot result in different e's, because of the above rule.

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