newbi question

[cginewbie]

Hi,
how do you know if the passed argument is an integer, pointer to an array, pointer to a harsh, or whaever?

for ex.
sub a{
my $a = shift;
if($a is an interger{ ...}
elsif($a is a pointer to a string){...}
elsif($a is a pointer to an array){...}
elsif($a is a pointer to a harsh){...}
return whatever
}

and i can call this a() like this
a($int);
a(\@a);
a(\%a);
...

how do i do that?

 

[missbarbell]

use ref() which should return SCALAR, ARRAY, HASH, CODE, REF, BLOB or LVALUE.

on the command line type:

perldoc -f ref

for further explanation.

HTH,
Barbie. Leader of Birmingham Perl Mongers

http://birmingham.pm.org