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Groups > comp.lang.c++ > #70949
| From | Ben Bacarisse <ben.usenet@bsb.me.uk> |
|---|---|
| Newsgroups | comp.lang.c++ |
| Subject | Re: Is there a way to determine endianess in a constexpr-function ? |
| Date | 2020-01-02 00:47 +0000 |
| Organization | A noiseless patient Spider |
| Message-ID | <87sgkyptu8.fsf@bsb.me.uk> (permalink) |
| References | <quiidc$qa1$1@news.albasani.net> <h744cjF4glqU1@mid.individual.net> <quimd9$hek$2@news.albasani.net> <quj613$6nk$1@dont-email.me> |
David Brown <david.brown@hesbynett.no> writes: > On 01/01/2020 18:54, Bonita Montero wrote: >>>> Is there a way to determine endianess in a constexpr-function >>>> which might return true for little endian and false for big >>>> endian? I guess not, but maybe I din't consider a trick here. >> >>> "Not" is probably the correct answer here, so in C++20 we get >>> std::endian where the implementation provides the info. >>> https://en.cppreference.com/w/cpp/types/endian >> >> Where's the support for the DEC PDP-11 and Honeywell 316 endianess??? >> ;-) >> > > Gone - along with ones' complement integers. Not entirely! An implementation must signal a non-uniform endianness, but it can't, using std::endian alone, say much more about it. -- Ben.
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Is there a way to determine endianess in a constexpr-function ? Bonita Montero <Bonita.Montero@gmail.com> - 2020-01-01 17:46 +0100
Re: Is there a way to determine endianess in a constexpr-function ? Bo Persson <bo@bo-persson.se> - 2020-01-01 18:49 +0100
Re: Is there a way to determine endianess in a constexpr-function ? Bonita Montero <Bonita.Montero@gmail.com> - 2020-01-01 18:54 +0100
Re: Is there a way to determine endianess in a constexpr-function ? David Brown <david.brown@hesbynett.no> - 2020-01-01 23:21 +0100
Re: Is there a way to determine endianess in a constexpr-function ? Robert Wessel <robertwessel2@yahoo.com> - 2020-01-01 18:26 -0600
Re: Is there a way to determine endianess in a constexpr-function ? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2020-01-02 00:47 +0000
Re: Is there a way to determine endianess in a constexpr-function ? Pavel <pauldontspamtolk@removeyourself.dontspam.yahoo> - 2020-01-02 22:28 -0500
Re: Is there a way to determine endianess in a constexpr-function ? Siri Cruise <chine.bleu@yahoo.com> - 2020-01-02 19:51 -0800
Re: Is there a way to determine endianess in a constexpr-function ? Öö Tiib <ootiib@hot.ee> - 2020-01-02 23:14 -0800
Re: Is there a way to determine endianess in a constexpr-function ? Bonita Montero <Bonita.Montero@gmail.com> - 2020-01-03 08:31 +0100
Re: Is there a way to determine endianess in a constexpr-function ? Bonita Montero <Bonita.Montero@gmail.com> - 2020-01-03 08:43 +0100
Re: Is there a way to determine endianess in a constexpr-function ? Pavel <pauldontspamtolk@removeyourself.dontspam.yahoo> - 2020-01-05 00:51 -0500
Re: Is there a way to determine endianess in a constexpr-function ? Bonita Montero <Bonita.Montero@gmail.com> - 2020-01-05 07:43 +0100
Re: Is there a way to determine endianess in a constexpr-function ? Bonita Montero <Bonita.Montero@gmail.com> - 2020-01-05 08:31 +0100
Re: Is there a way to determine endianess in a constexpr-function ? Bonita Montero <Bonita.Montero@gmail.com> - 2020-01-05 08:34 +0100
Re: Is there a way to determine endianess in a constexpr-function ? Bonita Montero <Bonita.Montero@gmail.com> - 2020-01-05 08:38 +0100
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