
Functions 351
EXERC ISES
A)Answer the following questions.
1) Write the definition of a function. Indicate types of functions available in C.
2) How does a function help to reduce the program size?
3) Differentiate between library and user-defined functions.
4) How does a function work? Explain how arguments are passed and results are returned?
5) List any five library functions and illustrate them with suitable examples.
6) What are actual and formal arguments?
7) What are the uses of re t u rn () statements?
8) What does it mean if there is no return statement in the function?
9) What are void functions?
10) Why is it possible to use ...