Hi:
Does anybody know how to return hash tables created in a function?
I have something like so:
%a_hash_table = build_a_hash_table();
sub build_a_hash_table
{
my(%hash_table);
\#some code to build hash table: "%hash_table" for e.g
return %hash_table;
}
----> This unfortunately doesn't seem to work. The hash table in the main doesn't equal the one I create in the sub routine. Any insight would be greatly appreciated. Thank you!
The "return" function can only return a reference to an array. So, I think you would have to do something like:
$a_hash_table = build_a_hash_table();
# your hash is now in %$a_hash_table
# (the hash pointed to by the $a_hash_table scalar)
# print the hash
while ( ($k, $v) = each %$a_hash_table ) {
print "$k => $v\n";
}
sub build_a_hash_table
{
my(%hash_table);
#some code to build hash table: "%hash_table" for e.g
return (\%hash_table);
}