How much RAM do you have? How big are your system's pointers?
(No, there are no artificial limits save those imposed by the underlying OS and C compiler.)
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The lengths of strings are limited only by the addressing limitations of the compiler used to build Perl, and the amount of available memory. Numerical values, unless using bignum are typically 8 bytes, at least on 32 bit machines.
Of course, the array or hash reference to which a scalar variable points is limited only by available memory and addressing limits.
emc
Insisting on perfect safety is for people who don't have the balls to live in the real world.
—Mary Shafer, NASA Dryden Flight Research Center
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