Answer Posted / Ankur Mittal

In C, errno is a global variable that holds the error number of the last system error. To use it correctly, first call a function that might return an error (like fopen(), read(), write(), etc.), then check if it returned NULL or an error code, and if so, print the error message using perror("message"), which prints the string corresponding to errno.

What are compound statements?

1295

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Explain the difference between null pointer and void pointer.

1162

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

2814

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List at least 10 sorting methods indicating their average case complexity, worst case complexity and best case complexity.

2833

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write a program to find out prime number using sieve case?

2178

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

2740

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

2262

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Differentiate between null and void pointers.

1261

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In C language, the variables NAME, name, and Name are all the same. TRUE or FALSE?

1300

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Do you know the difference between malloc() and calloc() function?

1139

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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?

1362

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How can I implement sets or arrays of bits?

1123

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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

1946

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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.

2080

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

1933

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