Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > comp.lang.c > #162722
| From | Philipp Klaus Krause <pkk@spth.de> |
|---|---|
| Newsgroups | comp.lang.c |
| Subject | Re: Decimal Floating Point |
| Date | 2021-09-10 23:29 +0200 |
| Message-ID | <shgio2$nk2$1@solani.org> (permalink) |
| References | <2bff66f3-391b-4785-9c43-1f056106d6a1n@googlegroups.com> |
Am 10.09.21 um 15:35 schrieb Fabian Russell: > Decimal floating point was standardized as IEEE758-2008 and new C types > were defined: _Decimal128, _Decimal64, and _Decimal32. > > Gcc has many built-in functions (via libgcc) to handle decimal FP: > > https://gcc.gnu.org/onlinedocs/gccint/Decimal-float-library-routines.html > > However, what puzzles me is that C has not yet incorporated the decimal > FP types so that the ordinary binary operators, such as "+ - * /" can operate > directly on them. Rather, to add two _Decimal_64 values, x, y, for example, > one must use the function __bid_adddd3(x, y) instead of x + y. > > Why bother to include the new types yet now allow them to be used > arithmetically like all other standard numeric types? > The types are in the C standard (but optional, like VLAs). See the latest C23 draft N2596. And you can do arithmetic with the the normal way (i.e. using operators, like you would with other arithmetic types). Philipp
Back to comp.lang.c | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
Decimal Floating Point Fabian Russell <fr314159@gmail.com> - 2021-09-10 06:35 -0700
Re: Decimal Floating Point "james...@alumni.caltech.edu" <jameskuyper@alumni.caltech.edu> - 2021-09-10 08:17 -0700
Re: Decimal Floating Point scott@slp53.sl.home (Scott Lurndal) - 2021-09-10 15:44 +0000
Re: Decimal Floating Point James Kuyper <jameskuyper@alumni.caltech.edu> - 2021-09-10 12:06 -0400
Re: Decimal Floating Point Manfred <noname@add.invalid> - 2021-09-10 18:09 +0200
Re: Decimal Floating Point Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2021-09-10 16:23 +0000
Re: Decimal Floating Point James Kuyper <jameskuyper@alumni.caltech.edu> - 2021-09-10 12:37 -0400
Re: Decimal Floating Point Fabian Russell <fr314159@gmail.com> - 2021-09-10 09:38 -0700
Re: Decimal Floating Point James Kuyper <jameskuyper@alumni.caltech.edu> - 2021-09-10 12:58 -0400
Re: Decimal Floating Point Eli the Bearded <*@eli.users.panix.com> - 2021-09-10 18:11 +0000
Re: Decimal Floating Point Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2021-09-10 12:13 -0700
Re: Decimal Floating Point Fabian Russell <fr314159@gmail.com> - 2021-09-10 14:52 -0700
Re: Decimal Floating Point Tim Rentsch <tr.17687@z991.linuxsc.com> - 2021-09-11 07:09 -0700
Re: Decimal Floating Point James Kuyper <jameskuyper@alumni.caltech.edu> - 2021-09-10 23:23 -0400
Re: Decimal Floating Point scott@slp53.sl.home (Scott Lurndal) - 2021-09-10 19:04 +0000
Re: Decimal Floating Point James Kuyper <jameskuyper@alumni.caltech.edu> - 2021-09-10 23:23 -0400
Re: Decimal Floating Point Manfred <noname@add.invalid> - 2021-09-18 19:20 +0200
Re: Decimal Floating Point James Kuyper <jameskuyper@alumni.caltech.edu> - 2021-09-20 00:16 -0400
Re: Decimal Floating Point Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2021-09-10 11:14 -0700
Re: Decimal Floating Point Bart <bc@freeuk.com> - 2021-09-10 23:50 +0100
Re: Decimal Floating Point David Brown <david.brown@hesbynett.no> - 2021-09-11 20:22 +0200
Re: Decimal Floating Point Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2021-09-11 15:37 -0700
Re: Decimal Floating Point David Brown <david.brown@hesbynett.no> - 2021-09-12 12:58 +0200
Re: Decimal Floating Point Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2021-09-10 17:36 -0700
Re: Decimal Floating Point Bonita Montero <Bonita.Montero@gmail.com> - 2021-09-10 18:04 +0200
Re: Decimal Floating Point Bonita Montero <Bonita.Montero@gmail.com> - 2021-09-10 18:06 +0200
Re: Decimal Floating Point Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2021-09-10 09:37 -0700
Re: Decimal Floating Point Bonita Montero <Bonita.Montero@gmail.com> - 2021-09-10 20:43 +0200
Re: Decimal Floating Point "james...@alumni.caltech.edu" <jameskuyper@alumni.caltech.edu> - 2021-09-10 09:52 -0700
Re: Decimal Floating Point Fabian Russell <fr314159@gmail.com> - 2021-09-10 10:08 -0700
Re: Decimal Floating Point antispam@math.uni.wroc.pl - 2021-09-11 00:36 +0000
Re: Decimal Floating Point scott@slp53.sl.home (Scott Lurndal) - 2021-09-10 19:07 +0000
Re: Decimal Floating Point Bonita Montero <Bonita.Montero@gmail.com> - 2021-09-11 06:31 +0200
Re: Decimal Floating Point Siri Cruise <chine.bleu@yahoo.com> - 2021-09-10 23:29 -0700
Re: Decimal Floating Point Bonita Montero <Bonita.Montero@gmail.com> - 2021-09-11 16:31 +0200
Re: Decimal Floating Point Barry Schwarz <schwarzb@delq.com> - 2021-09-11 10:04 -0700
Re: Decimal Floating Point James Kuyper <jameskuyper@alumni.caltech.edu> - 2021-09-11 15:08 -0400
Re: Decimal Floating Point Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2021-09-11 15:39 -0700
Re: Decimal Floating Point Richard Damon <Richard@Damon-Family.org> - 2021-09-11 19:28 -0400
Re: Decimal Floating Point Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2021-09-10 11:21 -0700
Re: Decimal Floating Point Philipp Klaus Krause <pkk@spth.de> - 2021-09-10 23:29 +0200
Re: Decimal Floating Point Kaz Kylheku <563-365-8930@kylheku.com> - 2021-09-11 16:59 +0000
Re: Decimal Floating Point Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2021-09-11 16:05 -0700
Re: Decimal Floating Point Kaz Kylheku <563-365-8930@kylheku.com> - 2021-09-14 16:25 +0000
Re: Decimal Floating Point "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2021-09-12 13:08 -0700
Re: Decimal Floating Point Thomas David Rivers <rivers@dignus.com> - 2021-09-13 22:23 -0400
csiph-web