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*To*: drepper at cygnus dot com (Ulrich Drepper)*Subject*: Re: ISO C99: Macros MATH_ERRNO, MATH_ERREXCEPT, math_errhandling*From*: Andreas Jaeger <aj at suse dot de>*Date*: 05 Jun 2000 13:03:05 +0200*Cc*: GNU libc hacker <libc-hacker at sourceware dot cygnus dot com>*References*: <u87lc5y6vv.fsf@gromit.rhein-neckar.de><m3pupxe972.fsf@localhost.localdomain>

>>>>> Ulrich Drepper writes: Uli> Andreas Jaeger <aj@suse.de> writes: >> If we'd like to be on the safe side, we could set math_errhandling to >> 0 - but that's lazyness, I do think we can do better ;-). >> >> What's the right value to use? Uli> We (rth, me) discussed this already. We'll hopefully have some gcc Uli> support for this since there is such an option already in gcc. This Uli> will decide about the value. If anything thereafter has to be fixed Uli> in glibc so be it. We need to define MATH_ERRNO and MATH_ERREXCEPT as macros when <math.h> is included. I do think we've got to change glibc for this. Getting support for this in gcc seems to be the right thing - but we do need also program accordingly in glibc (if math_errhandling is 3, all math functions have to honour this). What option is already in gcc for this? Richard, are you going to handle the gcc part? Uli, please add this to your glibc 2.2 ToDo list. Thanks, Andreas -- Andreas Jaeger SuSE Labs aj@suse.de private aj@arthur.rhein-neckar.de

**Follow-Ups**:**Re: ISO C99: Macros MATH_ERRNO, MATH_ERREXCEPT, math_errhandling***From:*Ulrich Drepper

**References**:**ISO C99: Macros MATH_ERRNO, MATH_ERREXCEPT, math_errhandling***From:*Andreas Jaeger

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