Re^4: counting backward (optimize foreach reverse low .. high

[Anonymous Monk]

in reply to Re^3: counting backward (optimize foreach reverse low .. high
in thread counting backward

Four orders of magnitude more memory, or a minus sign. My choice is simple; how about yours?

I'll use minus sign until perl5-porter optimizes foreach reverse rangeop

Or i'll use for;;;

[BrowserUk]

Or i'll use for;;;

It's a shame you can't use the c-style for as a modifier:

cmpthese -1, {
    a=>q[
        1 for -1e6..0;
    ],
    b=>q[
        for( my $i=1e6; $i; --$i ){
            1
        }
    ]
};;
    Rate    b    a
b 14.0/s   -- -26%
a 19.0/s  35%   --