%b formats a number as binary (but first casts it to an unsigned value, so you'd need to make sure you only feed it positive values): 
$ perl -we'printf "%b", 123'
1111011

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(printf outputs directly, sprintf returns a formatted string).

Looks like your code above will give undef for 0; I think that could be fixed by changing your while () {} do a do {} while ().

In reply to Re: Re: Re: Re: Re: Why does it return 0? by ysth
in thread Why does it return 0? by mAineAc

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