Roland Mainz wrote:
> [The following falls under the category "micro-optimisation" but may IMO
> still be worth an investigation]
> After working on various parts of OpenSolaris I found that is common to
> use the following sequence to concatenate strings:
> -- snip --
> ...
> char *s;
> ...
> strcat(s, "foo");
> strcat(s, "/");
> strcat(s, "bar");
> -- snip --
> (note: The example is simplified, normally { "foo", ",", "bar" } are
> normal strings and no static string literals)
> while this code is simple and easy to understand it is quite inefficient
> - |strcat()| will always walk |s| each time. If |s| already contains a
> large path this will be horrible time-consuming.
>
> Back in the 1990 timeframe there was the "DICE C" compiler for AmigaOS
> (AFAIK SAS C/C++ had something similar - but I am not sure) which solved
> this issue quite cleanly via having a special version of |strcat()|
> which returned the end of the string instead of the beginning (like
> ANSI-C |strcat()| does) ... I don't remember the functions's name in
> "DICE C" anymore - lets call it |strFOOcat()| for now...
[Seems I finally found Matthew Dillons email address...]
Matthew: Do you remeber how your Amiga DICE-C compiler called the
function described above ?
----
Bye,
Roland
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