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Re: Conditional Interpretation?

by gryphon (Abbot)
on Feb 01, 2006 at 03:06 UTC ( #526950=note: print w/ replies, xml ) Need Help??


in reply to Conditional Interpretation?

Greetings earcam,

One of the things we did was to use a constant (or a bitwise and set of constants) inside a right-side if conditional for whether we had debug statements work. The compiler optimizes away the entire line at run-time if the constant conditional is false.

do_something() if ($CONSTANT); do_something_else() if ($CONSTANT & $ANOTHER_CONSTANT);

Is this what you're looking for?

gryphon
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Re^2: Conditional Interpretation?
by ikegami (Pope) on Feb 01, 2006 at 03:14 UTC

    Constants don't have leading dollar signs.

    do_something() if (CONSTANT); do_something_else() if (CONSTANT & ANOTHER_CONSTANT);

    If there's a dollar sign, it's not a constant, and Perl won't optimize it away.

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