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Groups > comp.lang.c > #61700

Re: Implementing static_assert

From jacobnavia <jacob@jacob.remcomp.fr>
Newsgroups comp.lang.c
Subject Re: Implementing static_assert
Date 2015-05-07 19:43 +0200
Organization A noiseless patient Spider
Message-ID <mig85f$eko$1@dont-email.me> (permalink)
References <midqsq$81d$1@dont-email.me>

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Le 06/05/2015 21:44, jacobnavia a écrit :
> I have added this useful construct to the lcc-win compiler.
>
> Description:
>
> #include <assert.h>
> static_assert(boolean expression, message)
>
> The boolean expression will be evaluated at compile time.
>
> If the "boolean expression" is true at compile time, nothing happens,
> the whole becomes a NOP (no operation).
>
> If the boolean expression fails, the character string "message" will be
> printed in an error message. The compiler appends the failed expression
> to the message. The compilation fails and no object code is generated.
>
> If the boolean expression can't be evaluated at compile time, the
> compiler will generate a call to the _StaticAssert function, that will
> print the error message at run time if the expression fails and exit the
> program.
>
> What do you think?
>
> Commentaries welcome.
>
>
>

Due to popular demand, the opton of a run time error for a static assert 
has been dropped.

:-(

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Thread

Implementing static_assert jacobnavia <jacob@jacob.remcomp.fr> - 2015-05-06 21:44 +0200
  Re: Implementing static_assert Keith Thompson <kst-u@mib.org> - 2015-05-06 13:28 -0700
    Re: Implementing static_assert jacobnavia <jacob@jacob.remcomp.fr> - 2015-05-06 22:55 +0200
      Re: Implementing static_assert Keith Thompson <kst-u@mib.org> - 2015-05-06 14:30 -0700
        Re: Implementing static_assert Martin Shobe <martin.shobe@yahoo.com> - 2015-05-06 18:07 -0500
          Re: Implementing static_assert Keith Thompson <kst-u@mib.org> - 2015-05-06 17:34 -0700
          Re: Implementing static_assert David Brown <david.brown@hesbynett.no> - 2015-05-07 09:44 +0200
      Re: Implementing static_assert Tim Rentsch <txr@alumni.caltech.edu> - 2015-05-07 12:37 -0700
  Re: Implementing static_assert David Brown <david.brown@hesbynett.no> - 2015-05-07 10:11 +0200
    Re: Implementing static_assert Ian Collins <ian-news@hotmail.com> - 2015-05-07 22:13 +1200
      Re: Implementing static_assert jacobnavia <jacob@jacob.remcomp.fr> - 2015-05-07 12:24 +0200
        Re: Implementing static_assert Ian Collins <ian-news@hotmail.com> - 2015-05-07 22:33 +1200
          Re: Implementing static_assert David Brown <david.brown@hesbynett.no> - 2015-05-07 14:30 +0200
    Re: Implementing static_assert Philip Lantz <prl@canterey.us> - 2015-05-07 03:53 -0700
      Re: Implementing static_assert David Brown <david.brown@hesbynett.no> - 2015-05-07 14:21 +0200
        Re: Implementing static_assert Keith Thompson <kst-u@mib.org> - 2015-05-07 09:11 -0700
          Re: Implementing static_assert James Kuyper <jameskuyper@verizon.net> - 2015-05-07 12:30 -0400
            Re: Implementing static_assert James Kuyper <jameskuyper@verizon.net> - 2015-05-07 12:55 -0400
    Re: Implementing static_assert Keith Thompson <kst-u@mib.org> - 2015-05-07 09:06 -0700
  Re: Implementing static_assert jacobnavia <jacob@jacob.remcomp.fr> - 2015-05-07 19:43 +0200
    Re: Implementing static_assert Tim Rentsch <txr@alumni.caltech.edu> - 2015-05-07 16:10 -0700

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