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Re: Determining uniqueness in a string.

by ioannis (Abbot)
on Oct 01, 2005 at 01:01 UTC ( #496572=note: print w/replies, xml ) Need Help??

in reply to Determining uniqueness in a string.

To speed things up, one easy step is to precompile the (static) pattern using the qr// operator, like qr/^\d{10}$/, or using the m//o flag, as in
die unless /^\d{10}$/o;
Also, the print statement might prove too expensive; perhaps, syswrite() is a better choice -- if you must write to output.

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Re^2: Determining uniqueness in a string.
by sauoq (Abbot) on Oct 01, 2005 at 02:03 UTC

    No, using /o here isn't buying anything. And using syswrite() instead of print under the pretense of improving performance is probably misguided.

    "My two cents aren't worth a dime.";

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