Re: Modules Returning Values?

Beware, you can't bless just any old scalar value: it must be a reference you bless. Also, return is not really necessary unless you are returning from somewhere in the middle of the function's code.

Is your new() a class constructor method? If so, you should consider writing it as,

packsge CheckStuff;
sub new {
    my $class = shift;
    my $bar = 2;
    bless \$bar, $class;
}
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to be called by, my $cs = CheckStuff->new(); That avoids the surprises you will get by having $bar a package global. You would find that with two CheckStuff objects around, their values would both be the same; whatever was set last. It also makes the constructor inheritable, so that if CheckStuff::Rigid has CheckStuff as a base class, my $csr = CheckStuff::Rigid->new(); always returns the right sort of object.

After Compline,
Zaxo

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Re^2: Modules Returning Values? by jfroebe (Parson) on Aug 31, 2004 at 21:49 UTC
Beware, you can't bless just any old scalar value: it must be a reference you bless. What if you threaten the perl with the Holy Hand Grenade of Antioch? ;-) A Reading from the Book of Armaments, Chapter 4, Verses 16 to 20: Then did he raise on high the Holy Hand Grenade of Antioch, saying, "Bless this, O Lord, that with it thou mayst blow thine enemies to tiny bits, in thy mercy." And the people did rejoice and did feast upon the lambs and toads and tree-sloths and fruit-bats and orangutans and breakfast cereals ... Now did the Lord say, "First thou pullest the Holy Pin. Then thou must count to three. Three shall be the number of the counting and the number of the counting shall be three. Four shalt thou not count, neither shalt thou count two, excepting that thou then proceedeth to three. Five is right out. Once the number three, being the number of the counting, be reached, then lobbest thou the Holy Hand Grenade in the direction of thine foe, who, being naughty in my sight, shall snuff it." -- Monty Python, "Monty Python and the Holy Grail" Jason L. Froebe No one has seen what you have seen, and until that happens, we're all going to think that you're nuts. - Jack O'Neil, Stargate SG-1	[reply]

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Re^2: Modules Returning Values?
by jfroebe (Parson) on Aug 31, 2004 at 21:49 UTC

Beware, you can't bless just any old scalar value: it must be a reference you bless.

What if you threaten the perl with the Holy Hand Grenade of Antioch? ;-)

A Reading from the Book of Armaments, Chapter 4, Verses 16 to 20: Then did he raise on high the Holy Hand Grenade of Antioch, saying, "Bless this, O Lord, that with it thou mayst blow thine enemies to tiny bits, in thy mercy." And the people did rejoice and did feast upon the lambs and toads and tree-sloths and fruit-bats and orangutans and breakfast cereals ... Now did the Lord say, "First thou pullest the Holy Pin. Then thou must count to three. Three shall be the number of the counting and the number of the counting shall be three. Four shalt thou not count, neither shalt thou count two, excepting that thou then proceedeth to three. Five is right out. Once the number three, being the number of the counting, be reached, then lobbest thou the Holy Hand Grenade in the direction of thine foe, who, being naughty in my sight, shall snuff it." -- Monty Python, "Monty Python and the Holy Grail"

Jason L. Froebe

No one has seen what you have seen, and until that happens, we're all going to think that you're nuts. - Jack O'Neil, Stargate SG-1

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