[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

--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Created attachment 50656
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=50656&action=edit
test-case