Map::First

Defined in: C4Map.h

Returns the first element in a map.

Prototype

type *First(void) const;

Description

The First function returns a pointer to the first element in a map. If the map is empty, then this function returns nullptr.

The first element in a map is always the one having the least key value based on the ordering defined for the KeyType type. The MapElement::Next function can be repeated called to iterate through the members of a map in order.