Allows grouping of heterogeneous members (of different types).
Example
typedef struct { int x, y, z;} box_t
A typedef is a definition of a type, not a declaration of a variable
No memory is allocated to a type
Initialisation is similar to array initialisation - .. = {} with nested brackets if a structure contains a nested structure.
Member access using the . operator box.x (and for nested structures box.colour.red)
Assignments unlike arrays, the entire structure can be reassigned to another structure box1 = box2
Passing Structures into Function
The entire structure is copied into the parameter - members of the actual parameter is copied into the corresponding members of the formal parameter.
Thus, since a separate copy of it is made in the called function, the original structure variable is not modified by the function. Similar to normal variables, the pointer will have to be passed in instead.
Array of structures
Array name of an array of structures is still a pointer, thus, the function is still able to modify the array elements in this situation.
Arrow Operator
To access the structure variable from the pointer of the structure, the syntax is as follows
(*player_ptr).name)
player_ptr->name
Precedence of dot operator
Since the dot operator precedes *, *player_ptr.name results in *(player_ptr.name) instead of the intended *(player_ptr).name. Thus, *player_ptr.name should not be used.
