Unpack ( template, expression )
The TEMPLATE is a sequence of characters that give the order and type of values, as follows:
You may prefix a field with a %<number> to indicate that you want a <number>-bit checksum of the items instead of the items themselves. Default is a 16-bit checksum. Checksum is calculated by summing numeric values of expanded values (for string fields the sum of ord($char) is taken, for bit fields the sum of zeroes and ones). The following efficiently counts the number of set bits in a bit vector: $setbits = unpack("%32b*", $selectmask);
|file: /Techref/language/perl/unpack.htm, 0KB, , updated: 2004/11/4 19:12, local time: 2018/12/16 22:18,
|©2018 These pages are served without commercial sponsorship. (No popup ads, etc...).Bandwidth abuse increases hosting cost forcing sponsorship or shutdown. This server aggressively defends against automated copying for any reason including offline viewing, duplication, etc... Please respect this requirement and DO NOT RIP THIS SITE. Questions?|
<A HREF="http://www.sxlist.com/techref/language/perl/unpack.htm"> Perl Function</A>
|Did you find what you needed?|
Welcome to sxlist.com!
& kind contributors
just like you!
Please don't rip/copy
Copies of the site on CD
are available at minimal cost.
Welcome to www.sxlist.com!