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Groups > comp.lang.c++ > #70947
| From | David Brown <david.brown@hesbynett.no> |
|---|---|
| Newsgroups | comp.lang.c++ |
| Subject | Re: Is there a way to determine endianess in a constexpr-function ? |
| Date | 2020-01-01 23:21 +0100 |
| Organization | A noiseless patient Spider |
| Message-ID | <quj613$6nk$1@dont-email.me> (permalink) |
| References | <quiidc$qa1$1@news.albasani.net> <h744cjF4glqU1@mid.individual.net> <quimd9$hek$2@news.albasani.net> |
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. If your code is limited to a known set of compilers or platforms, most have predefined macros that give you the endianness. There are some header files floating around the web that have checks for a large number of different toolchains if you don't want to read all the documentation yourself.
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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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