Structure Definitions

• Structures, Aggregate data types built using elements of other types

  struct Time{ //structure tag
  	int hour;   //structure members
  	int minute; //structure members
  	int second; //structure members
  }; //struct definition must end with semicolon
  

• Structure member naming
  • In same struct: must have unique names
  • In different structs: can share name
• Self-referential structure
  • Structure member cannot be instance of enclosing struct
  • Structure member can be pointer to instance of enclosing struct (self-referential structure), Used for linked lists, queues, stacks and trees
• struct definition
  • Creates new data type used to declare variables
  • Structure variables declared like variables of other types
  • Examples:

    Time timeObject;
    Time timeArray[ 10 ]; 
    Time *timePtr;
    Time &timeRef = timeObject;