Re^4: Pulling by regex II

my $month_num = index('JanFebMarAprMayJunJulAugSepOctNovDec',
                      $month_str)/3;
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Now we're talking.

Comment on Re^4: Pulling by regex II Download Code

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Re: Re^4: Pulling by regex II by BrowserUk (Patriarch) on Dec 14, 2002 at 20:19 UTC
`use constant MONTHS => 'JanFebMarAprMayJunJulAugSepOctNovDec'; ... my $month_num = index(MONTHS, $month_str)/3;` [download] Better still? Unfortunately, this (against my expectations) turns out to be between 30% & 50% slower than the hash solution. It uses much less momory, but it seems that hashing a 3 char string, indexing and returning the value is faster than a linear search for a 3 char string + a division. Surprised me Examine what is said, not who speaks.	[reply] [d/l]

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Re: Re^4: Pulling by regex II
by BrowserUk (Patriarch) on Dec 14, 2002 at 20:19 UTC

use constant MONTHS => 'JanFebMarAprMayJunJulAugSepOctNovDec';
...
my $month_num = index(MONTHS, $month_str)/3;
[download]

Better still?

Unfortunately, this (against my expectations) turns out to be between 30% & 50% slower than the hash solution.

It uses much less momory, but it seems that hashing a 3 char string, indexing and returning the value is faster than a linear search for a 3 char string + a division.

Surprised me

Examine what is said, not who speaks.

[reply]
[d/l]