Class key

The key class defines the system key value. Since the database allows having identical keys, the key class differentiates between them. There is a define in the dataman.hh include file the defines 'KEY' as the value of the key from the last operated on index. The minimum size of a key is one character, and the maximum is 32.

Constructors

#include <dataman/dataman.hh>

Construct an empty key

key()

Construct a key from another key.

key(key &k)

Operators

Assign a string to a key. If using a key assigned this way the index will return the lowest order matching key.

void operator=(char *s);

Assign a key from another key. When using a key assigned this way, the index will return that specific occurance of that key.

void operator=(key& k);

Cast operator. This will implicitly cast a key to a const char * for use in copying and other functions and operations that require it. Return the string representation of the key.

operator const char *() const