[I]n general parentheses control the order of evaluation for math operators, not the order of execution for assignments...

Unless assignment is just another way to build expressions. See perlop, and note that the assignment operator has associativity and precedence.

Postincrement/postdecrement are tricky beasts. In C (at least in K&R C), their timing is left to the whim of the implementer. The swab() example involves a side-effect (substr() as lvalue), but the timing of the side-effect is well-defined.

In reply to Re: Re: Re: Re: An obscure side effect? by dws
in thread An obscure side effect? by BrowserUk

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