in reply to internal size of array indices limit?

Ideally, all Perl array indices are of size_t. See perlguts:

SV**    av_fetch(AV*, SSize_t key, I32 lval);

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I'm not sure what you mean by "without using an external lib". Every array element in Perl takes at least 16 bytes, on a 64-bit Perl, 24 bytes.

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Re^2: internal size of array indices limit?
by f77coder (Beadle) on Mar 16, 2017 at 20:49 UTC

    Thanks, I'll do the reading.

    External libs would be like hooking in GMP, MPFR or BigInt, BigRat, etc.

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