C:\>perl -E"$x = chr(0)x2**6;print length($x)"
64
C:\>perl -E"$x = chr(0)x2**31;print length($x)"
0
C:\>

##</code><code>##

C:\_32>perl -e "$x=chr(0)x2**29;print length($x)"
Out of memory!

##</code><code>##

-E program        like -e, but enables all optional features