Did I mention that in this case benchmarking goes over theory?

Have no time to dig into details, that's why in the meantime I trust others ...

see Shift, Pop, Unshift and Push with Impunity!¹

... who give me the impression, that Perl arrays have more optimizations than C-Arrays do.

> How do you think xav_alloc works?

I'm no C-Programmer ... but did I mention that I prefer benchmarking before digging into theory?

Cheers Rolf

( addicted to the Perl Programming Language)

updates

¹) excerpt:

In comparison, a stack implemented with a perl list will only require reallocations as the list grows larger. However, perl is smartly coded because the use of lists as queues was anticipated. Consequently, these queue-type reallocations have a negligible impact on performance. In benchmarked tests, queue access of a list (using repeated push/shift operations) is nearly as fast as stack access to a list (using repeated push/pop operations).

emphasize added!

In reply to Re^9: how to read multiple line from a file by LanX
in thread how to read multiple line from a file by skyworld_chen

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