Functions in C

What is the purpose of return type in functions?

• To control the loop iterations

• To confuse the programmer

• To specify the data type of the value that the function will return

• To determine the function name

Explain the role of return statement in functions.

• The return statement specifies the value that the function should return when called.

• The return statement is optional in functions

• The return statement ends the function execution abruptly

• The return statement is used to print output to the console

What are formal arguments in functions?

• Variables declared inside the function

• Output values returned by the function

• Comments within the function

• Input parameters specified in the function definition

Describe actual arguments in functions.

• Actual arguments in functions are the values passed to the function when it is called.

• Actual arguments in functions are only used in loops

• Actual arguments in functions are optional

• Actual arguments in functions are the values returned by the function

How is a function defined in C?

• Return_Type function_name(Parameters) { // Function body }

• ReturnType function_name(Parameters) // Function body

• ReturnType function_name { // Function body }

• ReturnType function_name(Parameters) { // Function body }

What is the syntax for function calling statement in C?

• myFunction(arg1, arg2,);

• myFunction(arg1 arg2);

• myFunction(arg1, arg2);

• myFunction(arg1, arg2)

Explain call by value in functions.

• Changes made to the parameter inside the function affect the original value outside the function.

• Call by value allows for direct manipulation of the original argument.

• When a function is called, the actual value of the argument is passed to the function. Any changes made to the parameter inside the function do not affect the original value outside the function.

• When a function is called, the reference to the argument is passed to the function.

Can a function have multiple return statements?

• No

• Rarely

• Sometimes

• Yes

What happens if the return type of a function is not specified?

• The function will not compile.

• The default return type assumed is 'void'.

• The return type defaults to 'double'.

• The default return type assumed is 'int'.

Differentiate between formal and actual arguments.

• Formal arguments are placeholders in the function definition, while actual arguments are the values passed to the function.

• Formal arguments are only used in object-oriented programming, while actual arguments are used in procedural programming.

• Formal arguments are values passed to the function, while actual arguments are placeholders in the function definition.

• Formal arguments are optional, while actual arguments are mandatory.