Which of the given statement is true with respect to the function atexit()?
A. The atexit() function cannot return to its caller
B. The atexit() function is used to return zero if the registration succeeds, nonzero if it fails
C. The atexit() function returns no value
D. The atexit() function causes abnormal program termination to occur
Answer: Option B
This Question Belongs to C Program >> Standard Library Functions
Which standard library function is used to calculate the length of a string in C?
A. strlen()
B. strlength()
C. stringlen()
D. strsize()
What is the purpose of the 'printf' function in C?
A. To print formatted text to the standard output
B. To read text from the standard input
C. To open a file
D. To close a file
Which library should be included to use the 'sqrt' function in C?
A. math.h
B. stdlib.h
C. cmath.h
D. algorithm.h
What does the 'strcmp' function in C do?
A. Compares two strings and returns an integer indicating their relationship
B. Copies one string to another
C. Concatenates two strings
D. Searches for a substring
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