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Re^2: High-speed Date Formatting

by rjt (Deacon)
on Jul 12, 2013 at 08:34 UTC ( #1043905=note: print w/replies, xml ) Need Help??


in reply to Re: High-speed Date Formatting
in thread *SOLVED* High-speed Date Formatting

Great idea! In fact, I had the same one earlier in this thread at least six hours ago. :-) Here's the relevant sub by itself:

use Inline C => q@ int epoch_sec(char * date) { char *tz_str = date + 26; struct tm tm; int tz; if ( strlen(date) != 31 || strptime(date, "%a, %d %b %Y %T", &tm) == NULL || sscanf(tz_str, "%d", &tz) != 1) { printf("Invalid date %s\n", date); return 0; } return timegm(&tm) - (tz < 0 ? -1 : 1)*(abs(tz)/100*3600 + abs(tz)%100*60); } @;

Performs about 25 times faster than str2time.

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[erix]: oh, 41M views -- everyone has seen it already then :)
[erix]: Alvin Lee dead too -- we're stuck with Karl, I'm afraid :)
[erix]: ok, one to remember Alvin Lee (Ten Years After - Help Me)
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[Corion]: stonecolddevin: I think Jack White is highly regarded, but ...
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