astMapSizeastMapSize - Get the number of entries in a KeyMap

Description:
This function returns the number of entries in a KeyMapKeyMap.
Synopsis:
int astMapSize( AstKeyMap $*$this )
Parameters:
this
Pointer to the KeyMap.
Returned Value:
astMapSize()
The number of entries in the KeyMap.
Notes:
  • A function value of zero will be returned if an error has already occurred, or if this function should fail for any reason.