On Wed, Feb 27, 2008 at 3:59 PM, vijay krishna <[EMAIL PROTECTED]> wrote:
>
> the sub routine function in turn uses many other function. Some of these
> functions have a return statement and some do not.
>
The caller doesn't care about what were enclosed in that function.
I need only the last returned value from the called function.
> So, when i invoke the sub routine "function" and i pass the returned value
> into $str, I need to check if $str has any value assigned or not.
>
my $str = myFunction(parameter);
if (defined $str) {
...
} else {
...
}
Also you need to take care if the function returns a list or a scalar.
for a list returned value you need to say:
my @str = myFunction(parameter);
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