I was playing around with the shift operator and I kept getting tired of converting binary to decimal. So I came up with this little program that I guess could be implemented different ways, but this is the way I like to use it.

After I wrote the program, I came to PerlMonks and saw that there was already a way to do this, obviously better, but I kind of feel proud of this script since I made it all on my own. So ...

#!/usr/bin/perl

# Implementation: perl *.pl BINARY_NUM

my @inputr = reverse split(//, shift);    
my $output = 0;
for (0 .. @inputr-1) { $output += ($inputr[$_] * (2**$_)); }
print "$output\n";

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In reply to Binary to Decimal (zdog's way) by zdog

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