Answer Posted / Bharti Nayak

"A dangling pointer in C occurs when a pointer points to memory that has been deallocated or freed. This can lead to undefined behavior, such as accessing memory that does not belong to your program. It happens often when you free() an allocated memory and then try to use the pointer again."

How can I implement sets or arrays of bits?

1117

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Explain the difference between null pointer and void pointer.

1157

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swap 2 numbers without using third variable?

1208

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

1614

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write a progrmm in c language take user interface generate table using for loop?

2122

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

2258

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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.

2073

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

1181

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The % symbol has a special use in a printf statement. How would you place this character as part of the output on the screen?

1358

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What is variable initialization and why is it important?

1391

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Sir,please help me out with the code of this question. Write an interactive C program that will encode or decode multiple lines of text. Store the encoded text within a data file, so that it can be retrieved and decoded at any time. The program should include the following features: (a) Enter text from the keyboard, encode the text and store the encoded text in a data file. (b) Retrieve the encoded text and display it in its encoded form. (c) Retrieve the encoded text, decode it and then display the decoded text. (d) End the computation. Test the program using several lines of text of your choice.

2396

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Differentiate between null and void pointers.

1256

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

2814

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Is int a keyword in c?

1057

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

2513

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