[Bug libstdc++/71899] An internal BooleanTestable trait should be provided

[daniel.kruegler at googlemail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71899

--- Comment #3 from Daniel Krügler <daniel.kruegler at googlemail dot com> ---
(In reply to Ville Voutilainen from comment #2)
> I dislike the #ifdef parts.

I'm sorry for my misleading proposal. My extended proposal is not suggesting to
add this macro. I was using this macro solely for experimentation purposes. My
intended question was solely whether we would prefer to have the more reduced
set of requirements as defined in my original proposal or the more complete
requirement set that would result if you consider the macro
EXT_BOOLEAN_TESTABLE_OPS defined (but without the #ifdef logic of that macro).
This more complete set corresponds more strictly to the current BooleanTestable
requirement set.