Implement the 'in' operator for a map.
The in operator on a map will return a pointer to a value, which will be null when no corresponding value is set for a given key.
The key in the map.
A pointer to a value, a null pointer if a value is not set.
See Implementation
Implement the 'in' operator for a map.
The in operator on a map will return a pointer to a value, which will be null when no corresponding value is set for a given key.