http://www.perlmonks.org?node_id=230220


in reply to Re: Re: Compressing a set of integers
in thread Compressing a set of integers

It wouldn't be necessary to use substr to extract a value in a buffer full of packed shorts or longs. The '@' code can be used to move to a specific offset in the buffer before extracting.

--- print map { my ($m)=1<<hex($_)&11?' ':''; $m.=substr('AHJPacehklnorstu',hex($_),1) } split //,'2fde0abe76c36c914586c';