I was looking through the speed comparison results and noticed that compilers like C C++ and D all kinda fail the regex-dna bench, while fortan perl and python have no problems with it.

http://shootout.alioth.debian.org/benchmark.php?test=regexdna&lang=all

Why this enormous difference?
(sorry if this is a really n00b question)

In article <dsglr5$2o1q$1@digitaldaemon.com>, mm says...
>
>I was looking through the speed comparison results and noticed that compilers like C C++ and D all kinda fail the regex-dna bench, while fortan perl and python have no problems with it.
>
>http://shootout.alioth.debian.org/benchmark.php?test=regexdna&lang=all
>
>Why this enormous difference?
>(sorry if this is a really n00b question)
>

Basically I think it comes down to the implementations of the regex library substitution functions for the scripting languages.. Or in the case of Fortran, 261 lines of hand-optimized 'custom' code.