It doesn't increment after returning. It increments first, and then returns the old value.
No, and that's the entire problem. You do not know
when the increment will happen, that is specifically left
undefined. (It was left undefined in C to give implementers
of compilers all sorts of freedom to optimize it - idem for
Perl). What a specific version of Perl does not gives you
absolutely no garantee what it will do in a next version.
Abigail
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