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Re^2: Adding 2 + 2 (stack machine,bug fix)

by ikegami (Pope)
on Apr 21, 2008 at 19:12 UTC ( #682004=note: print w/replies, xml ) Need Help??


in reply to Re: Adding 2 + 2 (stack machine)
in thread Adding 2 + 2

The parent assumed the accumulator was initially zero. That's not likely in a real-life scenario, so this removes the assumption:
my @stack; my $acc = rand; sub PUSH() { push(@stack, $acc); } sub POP() { pop(@stack); } sub INC() { $acc++; } sub ADD() { $acc += POP; } sub SUB() { $acc -= POP; } PUSH; SUB; INC; INC; PUSH; ADD; print("$acc\n");

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[Lady_Aleena]: Discipulus, then that is a problem. I wanted to find total seconds of my entire .mp3 collection to do some math on it to see how many days of continuous music i have.
[LanX]: darn. .. I wanted to see Marine and Melonchon go to next round, just for fun xD
[Discipulus]: LA use Perl: traversing a dir tree is simple; foreach file mp3 $sec+= use Mp3::Info
[Lady_Aleena]: Discipulus, I was able to get the sum of the seconds on the command line using awk. Then I ran the result through a perl script and got the result. It came bach with 4 days, 9 hours, 56 minutes, 43 seconds.
[Lady_Aleena]: s/bach/back/;
[Discipulus]: gired anyway is the intermediate state between hired and fired (and vice versa;)
[Lady_Aleena]: Discipuluis, I don't know if I want to fight with File::Find. File::Find and I are not friends.
[Discipulus]: 4 day Bach is too muche even for me
[Discipulus]: LA you know who is paco?
[Lady_Aleena]: Disc, nope.

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