OpenEuphoria

RE: Replacing characters (Matt: bug)

• Posted by Andy Serpa <renegade at earthling.net> Sep 17, 2002
• 470 views

Dan Moyer wrote:
> Some tests (not exhaustive) of the 3 "replace characters" routines 
> recently
> shown here:
> 
> Matt's now doesn't fail on replace last character, but doesn't actually
> replace the last character, & is *very* much slower than either of the 
> other
> two
>  (one test: Henri: 3.9, Andy:  2.75 , Matt:  24.06) ;
> 
> Henri/Mike "vulcan" routine is faster than Matt's but won't replace one 
> char
> with 2;
> 
> Andy's is fastest. How much faster seems to vary.  On a "long" sequence 
> to
> peruse, it seemed twice as fast as Henri/Mike "vulcan", but on many
> repetitions of replacing in smaller sequence, it seems only 1.4 times 
> faster
> (see test results above).
> 
> I've attached the tests I ran in case I did something dumb in them.
> 
>

Now that I think about it, I don't know why I put "10x faster".  I did 
only one test with a short sequence and short replacements, and found 
mine about 4.5x faster that Henri's (with the "so" sequence removed -- 
maybe that actually speeds it up?).  My unposted "most elegant" version 
turned out to be slower than both, so I just admired it for a while then 
erased it...