[Bug libstdc++/100226] [11/12 Regression] c++/11/bits/stl_tree.h:770:8: error: static assertion failed: comparison object must be invocable as const

[marxin at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100226

Martin Liška <marxin at gcc dot gnu.org> changed:

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

--- Comment #5 from Martin Liška <marxin at gcc dot gnu.org> ---
(In reply to Jonathan Wakely from comment #4)
> The template argument '_Compare = paircmp' shows the type user as the
> comparison object.
> 
> So paircmp::operator() needs to be const.

I can confirm that it works, thank you for help!