Question

What is memory leak? Why it should be avoided

Answer 1

Memory leak occurs when programmers create a memory in heap and forget to delete it. Memory leaks are particularly serious issues for programs like daemons and servers which by definition never terminate.

/* Function with memory leak */ #include <stdlib.h>    void f() {     int* ptr = (int*)malloc(sizeof(int));        /* Do some work */        return; /* Return without freeing ptr*/ }