Programs on pointers and arrays in c

Skip to content. Now if an array is declared like: int a[5]; Now in above declaration of the array, if the first element of array a[0] is stored at memory location 0x16 say then the second element a[1] of array will be stored at the memory location adjacent to it which is 0x16 as integer occupies 4 bytes of memory.

In computers memory, it would look like In C programming, the name of an array always points to the base address i. That is why arrays and pointers are analogous in many ways. Similarly, pointer variable also points to the specific location in the memory. Print the Fibonacci series. Reference Materials string. Start Learning C.

Explore C Examples. C Array and Pointer Examples. C Pass Addresses and Pointers. Relationship Between Arrays and Pointers In this tutorial, you'll learn about the relationship between arrays and pointers in C programming. Before you learn about the relationship between arrays and pointers, be sure to check these two topics: C Arrays C Pointers Relationship Between Arrays and Pointers An array is a block of sequential data.

Previous Tutorial:. Next Tutorial:. Share on:. Check prime number. Print the Fibonacci sequence. Check if a number is palindrome or not. Program to multiply matrix. Reference Materials iostream. Point to Every Array Elements Suppose we need to point to the fourth element of the array using the same pointer ptr. Previous Tutorial:. Next Tutorial:. Share on:. Similarly, we can write num[i] as i[num] too and it outputs the same results.

Inside for loop, we print the value present at the current address of ptr and then increment the address by 1 — doing which it points to the next address in the array. Here we are assigning last index elements address to the pointer variable. Inside for loop we print the value present at address ptr and then decrement the value of ptr by 1 for each iteration of for loop — doing which it points to the previous address in the array.

This is called Call by value method. Inside for loop we are passing address of each element of array to display method one by one for each iteration. Since we are passing address to display method, we need to have a pointer variable to receive it. Inside display method we display the value present at the address being passed.