[Bug c++/94973] compile error when trying to use pointer-to-member function as invokable projection to ranges::find()

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94973

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|libstdc++                   |c++
             Status|WAITING                     |NEW
             Target|                            |*-*-mingw*
           Keywords|                            |rejects-valid

--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> ---
I can reproduce it using x86_64-w64-mingw32-g++ 9.2.1

Reduced:

#include <range/v3/algorithm/find.hpp>

struct X {
  int get_i() const { return 0; }
};

static_assert( ranges::indirectly_regular_unary_invocable<int (X::*)() const,
X*> );


Th static assert fails with mingw but not with a native compiler on linux.

I'm not yet convinced this isn't a ranges-v3 bug.