![Example
int numbers[5]={10,20,30,40,50};
int *p;
p=&numbers; // p=numbers;
this store address of first element of the array. And once we store address of first
element of array we can access by using *(p+1),*(p+2) and so on.](https://image.slidesharecdn.com/pointertoarrayandstructure-200502141927/85/Pointer-to-array-and-structure-3-320.jpg)
![Access array using pointer
int numbers[5]={10,20,30,40,50};
int *p,i;
p=&numbers; // p=numbers;
for( i=0; i<5 ; i++)
{
printf(“n%d”,*(p+i));
}](https://image.slidesharecdn.com/pointertoarrayandstructure-200502141927/85/Pointer-to-array-and-structure-4-320.jpg)
![Pointer to array of structure
It is possible to create pointer to array of structure as regular array.
struct student
{
int roll;
float marks;
};
struct student s[5];
struct student *ptr;
ptr=&s;](https://image.slidesharecdn.com/pointertoarrayandstructure-200502141927/85/Pointer-to-array-and-structure-8-320.jpg)
Pointer to array and structure
- 1. Pointer to Array and Structure Prepared By: Mr. S. A. Patil Assistant Professor,PVPIT Budhgaon
- 2. Pointers to Array Array is collection elements with same datatype. When we create an array some memory space is allocated to that array. So we can create pointer of array also. By using pointer to array we can access elements of array
- 3. Example int numbers[5]={10,20,30,40,50}; int *p; p=&numbers; // p=numbers; this store address of first element of the array. And once we store address of first element of array we can access by using *(p+1),*(p+2) and so on.
- 4. Access array using pointer int numbers[5]={10,20,30,40,50}; int *p,i; p=&numbers; // p=numbers; for( i=0; i<5 ; i++) { printf(“n%d”,*(p+i)); }
- 5. Pointer to structure Structure is collection of elements with different datatypes. When we define any structure we create a user defined datatype of structure type. Memory is allocated to each structure variable. We can also create pointer to structure variable. And access structure by using pointer
- 6. Example struct student { int roll; float marks; }; struct student s1; struct student *ptr; ptr=&s1;
- 7. Access structure elements using pointer We can access structure elements by using -> operator Write data into structure variable printf(“nEnter Roll No:”); scanf(“%d”,&ptr->roll); printf(“nEnter Marks:”); scanf(“%f”,&ptr->marks); Read structure variable printf(“nRoll number: %d”,ptr->roll); printf(“nMarks: %f”,ptr->marks);
- 8. Pointer to array of structure It is possible to create pointer to array of structure as regular array. struct student { int roll; float marks; }; struct student s[5]; struct student *ptr; ptr=&s;
- 9. Access array of structure using pointer We can access structure elements by using -> operator Write data into structure variable for(i=0;i<5;i++) { printf(“nEnter Roll No:”); scanf(“%d”,&ptr->roll); printf(“nEnter Marks:”); scanf(“%f”,&ptr->marks); ptr++; }
- 10. Access array of structure using pointer Read structure variable for(i=0;i<5;i++) { printf(“nRoll number: %d”,ptr->roll); printf(“nMarks: %f”,ptr->marks); ptr++; }