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Re^4: Any downsides to this slurp idiom?

by vr (Curate)
on Jun 22, 2018 at 18:40 UTC ( #1217245=note: print w/replies, xml ) Need Help??

in reply to Re^3: Any downsides to this slurp idiom?
in thread Any downsides to this slurp idiom?

Correct. I'm observing, right now, memory consumption reading 400 MB file using both examples, both in 5.18 and 5.20. And trying to read 800 MB file results in "Out of memory!" (32-bit OS) with 5.18 and $s = do{...}; syntax, but not in other 3 cases. I said "somehow" because scalar doesn't get "IsCOW" flag, but mechanism (do not copy a buffer PV points to) must perhaps be the same.

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