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Re: More efficient return of values from sub

by fglock (Vicar)
on Mar 26, 2005 at 03:12 UTC ( #442448=note: print w/replies, xml ) Need Help??


in reply to More efficient return of values from sub

sub routine_A { my ($name) = getinfo('name'); print $name; } sub routine_B { my ($address) = getinfo('address'); print $address; } sub getinfo { my %data; $data{name} = "Sam"; $data{address} = "123 Main St"; return @data{ @_ }; } routine_A; routine_B; print getinfo( 'name', 'address' );

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Re^2: More efficient return of values from sub
by bradcathey (Prior) on Mar 26, 2005 at 14:08 UTC

    Perfect fglock! I actually wondered about hashes for a fleeting second after posting, but this has helped me see the logic and application of this approach. It keeps it 1) simple, 2) no outside modules, and 3) no global variables (one of my early 'solutions').


    —Brad
    "The important work of moving the world forward does not wait to be done by perfect men." George Eliot

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[Corion]: Meh. I'm now on Firefox 57 ("Quantum") and again have to remove Pocket, and reinstall the adblocker, uMatrix (because NoScript doesn't work) and silence the about:blank page to not download crap from the internet
[Corion]: Maybe I shouldn't update software ...
[ambrus]: Corion: my guess is to first read the start of the file to check what format it is out of two or more possibilities, then rewind it and handle it differently depending on the program
[ambrus]: s/program/format/
[Dumu]: ambrus: it's about testing a file for being multiple possible file formats
[ambrus]: In particular, you might want to detect the encoding of a HTML file from between utf-16 versus ascii-based and encoding given in a META tag.
[ambrus]: Dumu: it should probably be safe to change the encoding if you rewind first with seek $file, 0, 0 first
[Dumu]: ambrus: good guess. I'm trying to contribute to a CPAN module, and the existing tests assume they're looking at text files
[Dumu]: ambrus: thank you. I was seeking afterwards. I'll seek first.
[jedikaiti]: Hello, Dumu!

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