Explain how do you override a defined macro?

822

What is the meaning of && in c?

768

How can I find out if there are characters available for reading?

875

in multiple branching construct "default" case is a) optional b) compulsarily c) it is not include in this construct d) none of the above

861

What does the c preprocessor do?

860

What is C language ?

1729

Why do we use namespace feature?

826

What is static function in c?

857

What does %d do?

966

Write a program to reverse a string.

854

How is null defined in c?

877

What is #include cctype?

836

Write a C program that will accept a hexadecimal number as input and then display a menu that will permit any of the following operations to be carried out: Display the hexadecimal equivalent of the one's complement. (b) Carry out a masking operation and then display the hexadecimal equivalent of the result. (c) Carry out a bit shifting operation and then display the hexadecimal equivalent of the result. (d) Exit. If the masking operation is selected, prompt the user lor the type of operation (bitwise and, bitwise exclusive or, or bitwise or) and then a (hexadecimal) value for the mask. If the bit shifting operation is selected. prompt the user for the type of shift (left or right), and then the number of bits. Test the program with several different (hexadecimal) input values of your own choice.

5114

how can i write a program that prints out a box such that whenever i press any key8(coordinate number) on the keyboard, the box moves.

1457

a character or group of characters that defines a register,or a part of storage a) memory b) byte c) address d) linear list

844