On Tue, 26 Aug 2003, Sascha Schumann wrote:

> > As long as there are appropriate checks and fallbacks, I see no problem
> > using compiler-specific hacks.  Especially in cases where it would benefit
> > a large percentage of users.
>
>     Run-time execution time is not everything, otherwise the
>     whole world would still be using Assembler for all
>     programming.
>
>     Hacks often adversely affect maintainability of any given
>     system.  For example, the computed goto hack relies on
>     separate definitions of all opcodes.  Failing to keep this
>     list up to date can result in subtle, hard to diagnose
>     failures which is undesirable for a stable system (PHP 4).

As if the list of opcodes is likely to change in PHP 4.  That sounds like
a bogus argument to me.

-Rasmus

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