Answer Posted / Adesh Kumar Singh

A null pointer is used in C to represent an uninitialized, undefined, or non-existent value. It is denoted by the constant NULL or (void*)0. It is primarily used for initializing pointers and checking if a pointer points to a valid memory location.

Differentiate between null and void pointers.

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i have a written test for microland please give me test pattern

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will u please send me the placement papers to my mail???????????????????

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What is variable initialization and why is it important?

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What is pointers in c with example?

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What are pointers? What are different types of pointers?

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hi folks i m approching for h1 b interview on monday 8th of august at montreal and i m having little problem in my approval notice abt my bithdate my employer has made a mistake while applying it is 12th january and istead of that he had done 18 the of january do any body have any solution for that if yes how can i prove my visa officer abt my real birthdate it urgent please let me know guys thaks dipesh patel

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write a c program to find the sum of five entered numbers using an array named number

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In C programming, how do you insert quote characters (‘ and “) into the output screen?

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PLS U SENS ME INTERVIEW O. MY EMAIL ADD, SOFIYA.SINGH@GMAIL.COM

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What is the general form of a C program?

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what is associativity explain what is the precidence for * and & , * and ++ how the folloing declaration work 1) *&p; 2) *p++;

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swap 2 numbers without using third variable?

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Write a program to maintain student’s record. Record should not be available to any unauthorized user. There are three (3) categories of users. Each user has its own type. It depends upon user’s type that which kind of operations user can perform. Their types and options are mentioned below: 1. Admin (Search Record [by Reg. No or Name], View All Records, Insert New Record, Modify Existing Record) 2. Super Admin (Search Record [by Reg. No or Name], View All Records, Insert New Record, Modify Existing Record, Delete Single Record) 3. Guest (Search Record [by Reg. No or Name], View All Records) When first time program runs, it asks to create accounts. Each user type has only 1 account (which means that there can be maximum 3 accounts). In account creation, following options are required: Login Name: <6-10 alphabets long, should be unique> Password: <6-10 alphabets long, should not display characters when user type> Confirm Password: Account Type: Login Name, Password and Account Type should be stored in a separate file in encrypted form. (Encryption means that actual information should be changed and Decryption means that Encrypted information is changed back to the actual information) If any of the above mentioned requirement(s) does not meet then point out mistake and ask user to specify information again. When Program is launched with already created accounts, it will ask for user name and password to authenticate. On successful authentication, give options according to the user’s type.

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Can a function be forced to be inline? Also, give a comparison between inline function and the C macro?

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