question How do you use the const keyword with a pointer in C

Programming

How do you use the 'const' keyword with a pointer in C?

A. const *ptr;
B. *const ptr;
C. const ptr;
D. const int *ptr;

'const' after '*' makes the pointed data constant.

How do you define a macro in C?

A. #define MACRO_NAME()
B. define MACRO_NAME():
C. #macro MACRO_NAME
D. #define MACRO_NAME value

What does the 'exit()' function do in C?

A. Close a file
B. Terminate the program
C. Return from a function
D. Print a message

What is the purpose of the 'strncpy' function in C?

A. Compare strings
B. Concatenate strings
C. Copy a specified number of characters from one string to another
D. Convert strings

What is the output of printf("%d", 5 << 2);?

A. 20
B. 10
C. 40
D. 5

How do you declare a constant integer in C?

A. int constant = 5;
B. constant int = 5;
C. const int constant = 5;
D. int constant(5);

Which header file is needed for file input and output operations in C?

A. stdlib.h
B. string.h
C. stdio.h
D. math.h

What is the purpose of the 'strchr' function in C?

A. Search for a character in a string
B. Search for a string in another string
C. Compare strings
D. Concatenate strings

What is the purpose of the 'strtok' function in C?

A. Tokenize a string
B. Compare strings
C. Concatenate strings
D. Copy strings

What is the purpose of the 'enum' keyword in C?

A. Declare a structure
B. Declare an enumeration
C. Declare a function
D. Declare a variable

How do you declare a two-dimensional array in C?

A. int arr[][];
B. int arr[];
C. int arr[][] = new int[];
D. int arr[][3];