2.3.1 delete()
If you sell one of your records it might be nice to able to delete that entry from the database. The delete function is quite simple.
First we set up an array of record names (cf. the list_records function).
Then we find the name of the record of the number num and use the builtin function m_delete() to remove that entry from records.
void delete_record(int num)
{
array(string) record_names=sort(indices(records));
string name=record_names[num-1];
m_delete(records,name);
}
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