>>>>> "M" == Marc <sono...@fannullone.us> writes:
M> I've noticed that the following two lines seem to be equivalent when
calling a sub from a module called Lib.pm:
Lib-> load_config("config.dat");
M> Lib::load_config("config.dat");
M> Is this just a case of TIMTOWTDI or is there a difference in how
M> they do what they do?
they are actually very different. the :: call is just a plain sub call
with a fully qualified path. if the sub was imported into the current
package you wouldn't even need the Lib:: part.
the other is a class method call. it has two major differences. first it
will pass its class (or object, the arg before ->) as the first arg in
the call. the second thing is that it will search the class hierarchy
(using the package global's @ISA) to find that method if it isn't in the
Lib class.
so don't think they are even similar as one is a sub call and the other
is a class method call. they aren't interchangeble at all
uri
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Uri Guttman -- uri AT perlhunter DOT com --- http://www.perlhunter.com --
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