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

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;;;

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

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Re^5: counting backward (optimize foreach reverse low .. high by BrowserUk (Patriarch) on Mar 02, 2013 at 16:59 UTC
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% --` [download] With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday' Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error. "Science is about questioning the status quo. Questioning authority". In the absence of evidence, opinion is indistinguishable from prejudice.	[reply] [d/l]

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Re^5: counting backward (optimize foreach reverse low .. high
by BrowserUk (Patriarch) on Mar 02, 2013 at 16:59 UTC

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%   --
[download]

With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.

"Science is about questioning the status quo. Questioning authority".

In the absence of evidence, opinion is indistinguishable from prejudice.

[reply]
[d/l]