... a fast subset of perl...

The same thing came up in Perl 6 development more times than I could remember. Someone would show up and say "I have a very basic Perl 6 implementation on $virtual_machine that's n times faster than $other_implementation!" and it turns out they had implemented a calculator which did integer math.

No disrespect to Flavio or Perlito, but "fast subset" only starts to get interesting when that "subset" is more set than sub.

In reply to Re^4: Perl 5 Optimizing Compiler, Part 5: A Vague Outline Emerges by chromatic
in thread Perl 5 Optimizing Compiler, Part 5: A Vague Outline Emerges by Will_the_Chill

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