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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);

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gryphon
Whitepages.com Development Manager (WDDC)
code('Perl') || die;

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Re^2: Conditional Interpretation?
by ikegami (Patriarch) 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);

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

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[d/l]

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