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Re^3: disable functions if module not installed

by almut (Canon)
on Nov 04, 2008 at 13:59 UTC ( #721397=note: print w/ replies, xml ) Need Help??


in reply to Re^2: disable functions if module not installed
in thread disable functions if module not installed

require returns true on success,

yes, and false (undef) otherwise. That was the idea :)

string-eval eats memory

Why would that be (in this case, where the string is just a few bytes)?  Any tests/data to prove the claim?

C:\>perl -e"print require CGI;" 1 C:\>perl -e"print require CGIshamalamadingdong;" Can't locate CGIshamalamadingdong.pm in @INC

Not sure what this is meant to demonstrate — I thought we were talking about eval "require ...":

$ perl -E '$ok = eval "require CGI" ? 1:0; say $ok' 1 $ perl -E '$ok = eval "require CGIshamalamadingdong" ? 1:0; say $ok' 0

(note: swap single and double quotes if you're on Windows)

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