Dangling Pointer in C

In this program, you will know about dangling pointer and get the example code of dangling pointer in c programming.

What is a Dangling Pointer

A dangling pointer refers to a memory address that is no longer valid or has been de-allocated.

#include<stdio.h>

#include<malloc.h>

int main()

{

int *ptr; //declaring a pointer

//creating a dangling pointer

ptr = (int*)malloc(sizeof(int));

//freeing the memory

free(ptr);

//accessing the freed memory

*ptr = 10;

printf("Value of ptr is: %d",*ptr);

return 0;

}

Output

It will display a blank screen.

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