http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34678
--- Comment #21 from Vincent Lefèvre <vincent-gcc at vinc17 dot net> --- (In reply to Nick Maclaren from comment #20) > Richard Biener's approach to the default is the one that matches the C > standard and Vincent Lefèvre is mistaken. No, I'm correct. > Defining it to be 'off' and not setting __STDC_IEC_559__ is very reasonable. No, this is really stupid. If the user *decides* to set the STDC FENV_ACCESS pragma to "on", then the compiler must not assume that it is "off" (this bug is not about the default state). At least it must behave in this way if -std=c99 (or c11) has been used. Otherwise a compilation failure may be better than getting wrong results.
