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Re: Re(golf): I'm looking for the faster way to convert char 2 Bin and Bin 2 char (8bits)

by I0 (Priest)
on Jan 27, 2001 at 05:08 UTC ( #54690=note: print w/replies, xml ) Need Help??

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  1. or download this
      my $i = 1;
       (push @num, (($num & $i) ? 1 : 0)) and $i<<=1 until $i > $num;
    
  2. or download this
    (push @num, (($num & 1) ? 1 : 0)) and $num>>=1 until 1 > $num;

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erix .oO( that sounds Boyer-Mooreish )
[Corion]: erix: Yes, but that's mostly for skipping characters you'll never read, but this approach skips the problem of needing to load more data while looking at a half-match
[Corion]: I mostly wonder how I can add this "reversal" to my toolchest, and if it's worth it or just clever
[choroba]: It should greatly simplify the parsing code, no flags or additional reading of the next buffer needed

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