Do we know if ruby represents strings the same way Racket does? The representation in C clearly admits more efficient implementations of relevant operations here, and Ruby's might too.
Robby On Sun, Jan 17, 2016 at 2:00 PM, Jon Zeppieri <zeppi...@gmail.com> wrote: > My string-trim uses unsafe ops, but I'm pretty sure it's safe. The (safe) > string-length at the start ensures we're using a string. The rest are > indexing and fixnum arithmetic on integers that are guaranteed to be valid > indices of the string. > > Still, if you don't like this, replace the unsafe ops with the corresponding > safe ones. It will still be much faster than the built-in version. > >> On Jan 17, 2016, at 2:54 PM, Brian Adkins <lojicdot...@gmail.com> wrote: >> >>> On Sunday, January 17, 2016 at 2:50:19 PM UTC-5, Brian Adkins wrote: >>> >>> With built-in string-trim, the lowest of three runs was 10293. Using your >>> string-trim the lowest of three runs was 7618, so it reduced the runtime by >>> 26%. >> >> Although, I probably should've mentioned that I'm not particularly >> interested in unsafe optimizations. I already have a very fast C program if >> I'm willing to risk unsafe behavior, so for Racket, I'd like to retain >> safety. >> >> Having said that, I'm pretty sure a combination of using Byte Strings and >> manually optimizing string-trim & string-replace (or skipping them in some >> cases) will get under the Ruby time. >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Racket Users" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to racket-users+unsubscr...@googlegroups.com. >> For more options, visit https://groups.google.com/d/optout. > > -- > You received this message because you are subscribed to the Google Groups > "Racket Users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to racket-users+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to racket-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
