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Re: How would you design C's replacement?

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בתאריך יום שני, 7 במאי 2012 17:31:07 UTC+1, מאת Ben Pfaff:
> Malcolm McLean <malcolm.mclean5@btinternet.com> writes:
> 
> > you're entitled to assume that, given two arbitrary pointers to
> > nul-terminated sequences of arbitrary length, strcmp() is the
> > most efficient way of comparing them.
> 
> I wouldn't assume that.  The author of strcmp() might have had
> different criteria in mind.  For example, he might have optimized
> for small code, or for code that can be proved to be correct, or
> for code that could be written quickly (if he was in a hurry).
>
In the olden days you did hear horror stories about memcpy() being a simple byte by byte loop. But compilers have got more sophisticated these days.

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Re: How would you design C's replacement? nick_keighley_nospam@hotmail.com - 2012-05-02 01:22 -0700
  Re: How would you design C's replacement? Michael Angelo Ravera <maravera@prodigy.net> - 2012-05-04 00:41 -0700
    Re: How would you design C's replacement? Ike Naar <ike@iceland.freeshell.org> - 2012-05-04 08:41 +0000
      Re: How would you design C's replacement? Michael Angelo Ravera <maravera@prodigy.net> - 2012-05-07 01:11 -0700
        Re: How would you design C's replacement? James Kuyper <jameskuyper@verizon.net> - 2012-05-07 07:18 -0400
          Re: How would you design C's replacement? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2012-05-07 05:41 -0700
            Re: How would you design C's replacement? James Kuyper <jameskuyper@verizon.net> - 2012-05-07 09:24 -0400
            Re: How would you design C's replacement? Ben Pfaff <blp@cs.stanford.edu> - 2012-05-07 09:31 -0700
              Re: How would you design C's replacement? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2012-05-10 15:37 -0700
    Re: How would you design C's replacement? BGB <cr88192@hotmail.com> - 2012-05-04 08:16 -0700
    Re: How would you design C's replacement? Ben Pfaff <blp@cs.stanford.edu> - 2012-05-04 09:49 -0700

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