RE: Newbie Question about subroutine

[Mooney Christophe-CMOONEY1]

@_ is a list and $vInput is a scalar.  A list in scalar context returns the
number of elements in the array.

So,

$vInput=@_

will put the number of elements in @_ into $vInput, which, naturally, is
always one.

To extract the single argument from the list, do this:

$vInput=shift;

This will take the first (and only) element in @_ and assign it to $vInput.

-----Original Message-----
From: Barry Carroll [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, August 07, 2001 11:03 AM
To: '[EMAIL PROTECTED]'
Subject: Newbie Question about subroutine



Hi all, i want to have a subroutine for checking user input:

here is a snippet of the code:

print ("Is your Terminal ANSI compliant?\nYes or No, \(y\) or \(n\)?\n");
chomp ($input = <STDIN>);

verifyInput($input);

        sub verifyInput
        {
        # Subroutine to verify input
        # Will return the correct value
        # and discard bad values

                my $vInput = @_;
                ....
                processing in here
                ....
        }

The problem is that I tried entering 'y', 'n', anything!, but no luck.
I found out that $vInput is always getting assigned the numeric value '1'.

The rest of the sub after this is fine, if i could just figure out why
$vInput is being assigned '1'

Any ideas? - Thanks in advance :)

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