What exact error you got? Is it entire script or just a fragment? If it is entire script, you should write it as
sub main()
{
if ($1 == null)
return 0;
else
return ($1 * 2);
}
or rewrite as
($1 == null) ? 0 : $1 * 2
Best regards,
Victor
sub main()
{
if ($1 == null)
return 0;
else
return ($1 * 2);
}
or rewrite as
($1 == null) ? 0 : $1 * 2
Best regards,
Victor