Page 104 - Programming Microcontrollers in C

Structures 89

then

people[1].name
is the same as

++pp->name
A structure can have another structure as a member element. Consider

struct point
{
int x;
int y;
};
where point contains two integer elements, x and y. A circle can
now be defined by

struct circle
{
struct point center;
int radius;
};

In this case access to the members of center is by
circle.center.x
or

circle.center.y
Of course the radius is accessed by

circle.radius
Functions can take structures as arguments and they can return
structures. For example, the function make_point() that follows
returns a structure.

struct point make_point(int x, int y)
{
struct point hold;

hold.x=x;