http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52907
--- Comment #2 from joseph at codesourcery dot com <joseph at codesourcery dot com> 2012-04-23 20:02:50 UTC --- On Tue, 10 Apr 2012, rguenth at gcc dot gnu.org wrote: > Does real.c even communicate this fact? You can identify underflow from the result of multiplication or division being zero or subnormal (unless an operand is zero or infinite), just as overflow is identified from an infinite result. Information about subnormal results may not be conveniently communicated by real.c, but simply handling zero results here would be enough for the use cases in glibc.
