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Groups > comp.lang.c++ > #91409
| From | Bonita Montero <Bonita.Montero@gmail.com> |
|---|---|
| Newsgroups | comp.lang.c++ |
| Subject | Re: How can I get an implementation of fmod()? |
| Date | 2023-08-25 10:37 +0200 |
| Organization | A noiseless patient Spider |
| Message-ID | <uc9p8a$3up4g$1@dont-email.me> (permalink) |
| References | <b1f2568f-0221-4b79-b6c6-115abd875541n@googlegroups.com> <uc9p27$3ului$1@dont-email.me> |
Am 25.08.2023 um 10:34 schrieb James Kuyper:
> float fmodf(float x,float y) {
> return x - truncf(x/y)*y;
> }
This doesn't work because when the exponent difference of x and y is
too large there might be integer-bits before the fraction of the div
-result lost so that the difference becomes larger than y.
A proper solution is much more complex. Check the solution I've shown
in this thread or the recend 8/1/2023 glibc solution in /sysdepes
/ieee754/dbl-64/e_fmod.c.
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How can I get an implementation of fmod()? Megumin <chrisramirez0227@gmail.com> - 2023-08-24 23:25 -0700
Re: How can I get an implementation of fmod()? Bonita Montero <Bonita.Montero@gmail.com> - 2023-08-25 09:19 +0200
Re: How can I get an implementation of fmod()? Bonita Montero <Bonita.Montero@gmail.com> - 2023-08-25 09:35 +0200
Re: How can I get an implementation of fmod()? Bonita Montero <Bonita.Montero@gmail.com> - 2023-08-25 09:49 +0200
Re: How can I get an implementation of fmod()? James Kuyper <jameskuyper@alumni.caltech.edu> - 2023-08-25 04:34 -0400
Re: How can I get an implementation of fmod()? Bonita Montero <Bonita.Montero@gmail.com> - 2023-08-25 10:37 +0200
Re: How can I get an implementation of fmod()? Bonita Montero <Bonita.Montero@gmail.com> - 2023-08-25 10:43 +0200
Re: How can I get an implementation of fmod()? Bonita Montero <Bonita.Montero@gmail.com> - 2023-08-25 11:20 +0200
Re: How can I get an implementation of fmod()? Megumin <chrisramirez0227@gmail.com> - 2023-08-30 22:52 -0700
Re: How can I get an implementation of fmod()? Bonita Montero <Bonita.Montero@gmail.com> - 2023-08-31 11:00 +0200
Re: How can I get an implementation of fmod()? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2023-08-31 21:48 +0100
Re: How can I get an implementation of fmod()? Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2023-08-31 14:37 -0700
Re: How can I get an implementation of fmod()? James Kuyper <jameskuyper@alumni.caltech.edu> - 2023-08-25 04:44 -0400
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