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Re: Re: do/redo or for(;;): what's Kosher?

by paulbort (Hermit)
on Jan 04, 2002 at 23:23 UTC ( #136351=note: print w/replies, xml ) Need Help??

in reply to Re: do/redo or for(;;): what's Kosher?
in thread do/redo or for(;;): what's Kosher?

I know it's more code, but my favorite method for obvious loops looks like this:
$forever = 1; while ($forever) { ... }
Spring: Forces, Coiled Again!

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Re: Re: Re: do/redo or for(;;): what's Kosher?
by Juerd (Abbot) on Jan 05, 2002 at 00:08 UTC
    That won't be optimized away, but a constant true value (not 0, "0", "" or undef) are.
    This means you can have less code and more efficiency, but still the clarity you like:
    while ('forever'){ ... }

    Which is equivalent to while (1) { ... }, which is optimized to for (;;) { ... }.

    2;0 juerd@ouranos:~$ perl -e'undef christmas' Segmentation fault 2;139 juerd@ouranos:~$

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