ahh thank you.
so saying
package CJB;
is like saying
namespace CJB {
and saying
use BinaryTree;
is like saying
#include "BinaryTree.h"
?
so a package exports certain vars/functions and those var/functions make up a
module?
thanks again,
-- christopher
On Friday 19 December 2003 03:51 pm, Bob Showalter wrote:
> christopher j bottaro wrote:
> > i'm reading "Programming Perl" and i'm on the chapter about packages.
> > it says that packages and modules are very similar and that novices
> > can think of packages, modules, and classes as the same thing, but i
> > wanna know exactly what the differences between packages and modules
> > are (i'm a c++ programmer, i know what classes are).
>
> A package is a namespace. All "global" variables (aka "symbol table" or
> "package" variables) and subs live in a package. The package statement is
> used to define the default package to be used if no package name is
> explicitly specified when the variable or sub is referenced.
>
> A module is a collection of routines and/or data, decleared in one (or
> possibly more than one) package and bundled into a source file for reuse
> and distribution.
>
> Certain Perl constructs assume a correspondence between package names and
> module names. The perlmod and perlmodlib documents go in to detail on these
> topics.
>
> perldoc perlmod
> perldoc perlmodlib
> perldoc -f package
> perldoc -f use
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