[llvm-bugs] [Bug 45026] Incorrect "dependent using declaration resolved to type without 'typename'" error

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=45026

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

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

--- Comment #1 from Richard Smith <richard-llvm at metafoo.co.uk> ---
Clang implements the resolution of
http://wiki.edg.com/pub/Wg21belfast/CoreWorkingGroup/cwg_active.html#2070; the
other compilers do not. This is not a bug.

You should always write an inheriting constructor declaration using the same
name before and after the ::, thus:

  using parent_t::parent_t;

All three compilers accept that form, and after core issue 2070, it's the only
correct syntax.

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