C programming Pointers Aptitude Questions and Answers: In this section you will find C Aptitude Questions and Answers on Pointers topics, declaring pointers, using pointers, pointer with other c topics like pointer of array etc.1) What will be the output of following program ? 1 2 3 4 5 6...
This can be a little confusing. Functions that return pointers almost always return a valid pointer (one that doesn't compare equal to zero) on success, and a null pointer (one that compares equal to zero) pointer on failure. Other functions return an int to show success or failure; typic...
This set of C Multiple Choice Questions & Answers (MCQs) focuses on “Pointers and Arrays”. Pre-requisite for C Pointers and Arrays MCQ set: Video Tutorial on C Pointers. 1. What will be the output of the following C code?#include <stdio.h> void main() { int a[3] = {1, 2, ...
Answer:NULL is used to denote that the pointer doesn’t point to a valid location. If we do not know their value at the time of declaration, we should initialize pointers as NULL. As well, we should make a pointer NULL when the memory pointed by it is deallocated in the middle of a...
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This section contains various C aptitude questions with answers on C language pointers, pointer to pointer, pointers declarations, accessing elements through pointers in C. Typedef This section contains various questions and answers on C language Typedef, data type creations through typedef (renaming the...
7. What are pointers, and how do they work? A pointer is a variable that stores the memory address of another variable as its value. Commonly used in data structures like linked lists, pointers allow low-level memory access, dynamic memory allocation, and many other functionality. 8. What...
What are all different types of pointers in C? What are all format specifiers in C? Why are they used? What is linked list? What value will be assigned to X below if p = 5? X = *p++; X = ++ *p; What is hashing? What is static variable? Can static variable be declared in ...
Declare two pointers, first and second, which are initialized to the linked list head. Increment the first linked list by two nodes and the second by one node in each loop. While the first node reaches the end of the list, the second node will point to the middle. ...
12. What is the difference between deep copy and shallow copy in C? In a shallow copy, if the object contains pointers or references to otherdata structures, then it will only copy the current pointer, not the data it is pointing to. It is more memory efficient but the data is shared...