How do you access the members of a structure?

Answer 1

In C, we use a struct to define a data type that represents the aggregate of two or more named variables known as members. The members of a struct need not be of the same type:

struct T {

int x;

double y;

char* z;

};

Once we have defined a structure, we can use it to create an instance of the type:

T obj;

We can access the members of a named object using the dot operator (.):

obj.x = 42;

obj.y = 3.14;

obj.z = "Hello world!";

If we hold a pointer to an object of the type, we use the pointer-to-member operator (->) instead:

void f (T* ptr) {

ptr->x = 42;

ptr->y = 3.14;

ptr->z = "Hello world!";

}