decimal to binary convertion

RedDragon has asked for the wisdom of the Perl Monks concerning the following question:

this subroutine does dectobin convertion and the resulting binary has a maximum of 32 bits.for larger decimal values the convertion fails as the maximum bits is only 32.what do i do for larger decimal values?how can i modify this subr- -outine to do the same?

      sub dectobin {
              join '', unpack "B32", pack "N", shift;
          }
[download]

cheers
yoshi

Comment on decimal to binary convertion Download Code

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•Re: decimal to binary convertion by merlyn (Sage) on May 18, 2002 at 08:14 UTC
That's not actually "decimal to binary". That's "number to binary". We've gone through this before here... see Super Search. For larger values, you'll have to use Math::BigInt. -- Randal L. Schwartz, Perl hacker	[reply]
Re: decimal to binary convertion by I0 (Priest) on May 19, 2002 at 00:58 UTC
`sub dectobin { use Math::BigInt; my $x = Math::BigInt->new(shift); join '', unpack 'B32B32', pack'NN',$x>>32,$x&0xffffffff; } print dectobin "12297829382473034410";` [download]	[reply] [d/l]