return_type (*fun_pointer_name)(argument_type_list)= &function_name; Function Pointer Example Program in C Consider the example /*function pointer example in c.*/#include <stdio.h>//function: sum, will return su
In this guide, we will learn how to work with Pointers and arrays in a C program. I recommend you to referArrayandPointertutorials before going though this guide so that it would be easy for you to understand the concept explained here. A simple example to print the address of array elem...
Example #include<stdio.h> main (){ int a = 10; int *p; int **q; p = &a; q = &p; printf("a =%d",a); printf("a value through pointer = %d", *p); printf("a value through pointer to pointer = %d", **q); } Output a=10 a value through pointer = 10 a value thro...
In the above example we defined two characters (‘ch’ and ‘c’) and a character pointer ‘ptr’. First, the pointer ‘ptr’ contained the address of ‘ch’ and in the next line it contained the address of ‘c’. In other words, we can say that Initially ‘ptr’ pointed to ‘ch...
An Example of Null pointer in C Any pointer that contains a valid memory address can be made as aNULL pointerby assigning0. Example Here, firstlyptris initialized by the address ofnum, so it is not a NULL pointer, after that, we are assigning0to theptr, and then it will become a NU...
In the above example : We declared two variables var1 and var2 A constant pointer ‘ptr’ was declared and made to point var1 Next, ptr is made to point var2. Finally, we try to print the value ptr is pointing to. So, in a nutshell, we assigned an address to a constant pointer...
learn c++ tutorials - pointers in c++ Example Here is how you can create pointer for structures: #include <iostream> using namespace std; struct temp { int i; float f; }; int main() { temp *ptr; return 0; } This program creates a pointer ptr of type structure temp. ...
Example of double Pointer Lets write a C program based on the diagram that we have seen above. #include<stdio.h>intmain(){intnum=123;//A normal pointer pr2int*pr2;//This pointer pr2 is a double pointerint**pr1;/* Assigning the address of variable num to the ...
Application of Function Pointers in C 15 related questions found What is the correct way to declare a pointer? Explanation:int *ptris the correct way to declare a pointer. What is pointer example? A pointer isa variable that stores the address of another variable. Unlike other variables that ...
For example, int i=5; int *ptr = &i; In the second statement, pointer variable ptr is initialized with the address of variable i. We can also define the variable i and initialize the pointer variable ptr with the address of variable i in a single statement provided the variable i is...