Re: Subroutines and '&'
- From: merlyn@xxxxxxxxxxxxxx (Randal L. Schwartz)
- Date: Tue, 07 Aug 2007 11:32:34 -0700
"Sherm" == Sherm Pendley <spamtrap@xxxxxxxxxxx> writes:
Sherm> It *does* make a difference - if you don't know or understand what that
Sherm> difference is, or you don't specifically want the behavior specified by
Sherm> the &, you shouldn't use it.
Or, for the opposite point of view, if you have:
sub log { print STDERR localtime() . ": @_\n" }
then you better darn well invoke it as:
&log("my message");
and *not*:
log("my message"); # invokes built-in logarithm function
And until you know all the perl built-ins, you should use &. And this
is what we teach in Learning Perl.
Please don't be so quick to dismiss the value of the leading &.
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