Re: On endianness, many #ifdefs, and the need thereof

From	Keith Thompson <kst-u@mib.org>
Newsgroups	comp.lang.c++
Subject	Re: On endianness, many #ifdefs, and the need thereof
Date	2019-10-02 12:54 -0700
Organization	None to speak of
Message-ID	<ln8sq22aaa.fsf@kst-u.example.com> (permalink)
References	<f48b89a2-f66c-4a73-b8ca-c13e8fe90dd1@googlegroups.com> <qn26kg$1spc$1@adenine.netfront.net> <qn27ad$iro$1@dont-email.me> <F_1lF.91481$zU2.55548@fx01.iad>

Show all headers | View raw

scott@slp53.sl.home (Scott Lurndal) writes:
> David Brown <david.brown@hesbynett.no> writes:
[...]
>>The /compiler/ can handle it at compile time - it can figure out the
>>result of this function at compile time and use that in optimisation.
>
> Can it?  How does that work when you're cross-compiling to a different
> architecture (like a microcontroller, for example)?

Presumably the compiler knows the endianness of the target architecture
it's generating code for.  There might be an issue with the compiler not
having that information soon enough, but it could certainly get the
information if it's worthwhile.

-- 
Keith Thompson (The_Other_Keith) kst-u@mib.org  <http://www.ghoti.net/~kst>
Will write code for food.
void Void(void) { Void(); } /* The recursive call of the void */

Thread

On endianness, many #ifdefs, and the need thereof Daniel <danielaparker@gmail.com> - 2019-10-02 04:00 -0700
  Re: On endianness, many #ifdefs, and the need thereof David Brown <david.brown@hesbynett.no> - 2019-10-02 13:26 +0200
    Re: On endianness, many #ifdefs, and the need thereof Daniel <danielaparker@gmail.com> - 2019-10-02 08:59 -0700
  Re: On endianness, many #ifdefs, and the need thereof Öö Tiib <ootiib@hot.ee> - 2019-10-02 05:42 -0700
  Re: On endianness, many #ifdefs, and the need thereof Juha Nieminen <nospam@thanks.invalid> - 2019-10-02 12:53 +0000
    Re: On endianness, many #ifdefs, and the need thereof David Brown <david.brown@hesbynett.no> - 2019-10-02 15:05 +0200
      Re: On endianness, many #ifdefs, and the need thereof scott@slp53.sl.home (Scott Lurndal) - 2019-10-02 13:54 +0000
        Re: On endianness, many #ifdefs, and the need thereof Keith Thompson <kst-u@mib.org> - 2019-10-02 12:54 -0700
          Re: On endianness, many #ifdefs, and the need thereof scott@slp53.sl.home (Scott Lurndal) - 2019-10-02 20:16 +0000
        Re: On endianness, many #ifdefs, and the need thereof David Brown <david.brown@hesbynett.no> - 2019-10-03 09:48 +0200
    Re: On endianness, many #ifdefs, and the need thereof Daniel <danielaparker@gmail.com> - 2019-10-02 07:52 -0700
      Re: On endianness, many #ifdefs, and the need thereof Öö Tiib <ootiib@hot.ee> - 2019-10-02 08:04 -0700
        Re: On endianness, many #ifdefs, and the need thereof Daniel <danielaparker@gmail.com> - 2019-10-02 08:31 -0700
          Re: On endianness, many #ifdefs, and the need thereof Juha Nieminen <nospam@thanks.invalid> - 2019-10-02 21:32 +0000
      Re: On endianness, many #ifdefs, and the need thereof Jorgen Grahn <grahn+nntp@snipabacken.se> - 2019-10-03 11:33 +0000
        Re: On endianness, many #ifdefs, and the need thereof David Brown <david.brown@hesbynett.no> - 2019-10-03 13:46 +0200
          Re: On endianness, many #ifdefs, and the need thereof Daniel <danielaparker@gmail.com> - 2019-10-03 05:56 -0700
            Re: On endianness, many #ifdefs, and the need thereof scott@slp53.sl.home (Scott Lurndal) - 2019-10-03 13:17 +0000
              Re: On endianness, many #ifdefs, and the need thereof David Brown <david.brown@hesbynett.no> - 2019-10-03 16:03 +0200
                Re: On endianness, many #ifdefs, and the need thereof Daniel <danielaparker@gmail.com> - 2019-10-03 07:13 -0700
          Re: On endianness, many #ifdefs, and the need thereof Jorgen Grahn <grahn+nntp@snipabacken.se> - 2019-10-03 18:51 +0000
          Re: On endianness, many #ifdefs, and the need thereof Keith Thompson <kst-u@mib.org> - 2019-10-03 14:28 -0700
            Re: On endianness, many #ifdefs, and the need thereof David Brown <david.brown@hesbynett.no> - 2019-10-04 10:11 +0200
              Re: On endianness, many #ifdefs, and the need thereof Daniel <danielaparker@gmail.com> - 2019-10-04 09:00 -0700
        Re: On endianness, many #ifdefs, and the need thereof Paavo Helde <myfirstname@osa.pri.ee> - 2019-10-03 14:46 +0300
        Re: On endianness, many #ifdefs, and the need thereof Daniel <danielaparker@gmail.com> - 2019-10-03 05:40 -0700
  Re: On endianness, many #ifdefs, and the need thereof Bonita Montero <Bonita.Montero@gmail.com> - 2019-10-02 15:10 +0200
  Re: On endianness, many #ifdefs, and the need thereof Barry Schwarz <schwarzb@dqel.com> - 2019-10-02 08:33 -0700
    Re: On endianness, many #ifdefs, and the need thereof David Brown <david.brown@hesbynett.no> - 2019-10-03 09:54 +0200
  Re: On endianness, many #ifdefs, and the need thereof "Alf P. Steinbach" <alf.p.steinbach+usenet@gmail.com> - 2019-10-02 19:35 +0200
    Re: On endianness, many #ifdefs, and the need thereof Daniel <danielaparker@gmail.com> - 2019-10-02 15:39 -0700
  Re: On endianness, many #ifdefs, and the need thereof "Oliver S." <Follow.Me@gmx.net> - 2019-10-02 19:59 +0200

csiph-web