C Programming and Technical

Q. What is a function?

A. A large program is subdivided into a number of smaller programs or subprograms. Each subprogram specifies one or more actions to be performed for the larger program. Such sub programs are called functions.

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function is a subroutine(method or procedure) associated with the objects which has access its data and member variables. function provides reusability.
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C Other Question

Q. What is dynamic memory allocation?

A. A dynamic memory allocation uses functions such as malloc() or calloc() to get memory dynamically. If these functions are used to get memory dynamically and the values returned by these function are assigned to pointer variables, such a way of allocating memory at run time is known as dynamic memory allocation Q. Difference between formal argument and actual argument?

A. Formal arguments are the arguments available in the function definition. They are preceded by their own data type. Actual arguments are available in the function call. These arguments are given as constants or variables or expressions to pass the values to the function.