[Bug libstdc++/50724] isnan broken by -ffinite-math-only in g++

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50724

--- Comment #6 from Paolo Carlini <paolo.carlini at oracle dot com> 2011-10-14 15:07:40 UTC ---
I was also thinking, maybe from the user point of view, a good way to deal with
this kind of problem today is splitting the computation in parts via the new
optimization attribute and pragma, keep the is_nan & co classifications outside
the -fast-math cores.