About Lesson
PARAMETERS :
There are 2 types of parameters:
a. Actual Parameters.
b. Formal Parameters.
a. Actual Parameters:
These are the parameters which are used in main() function for function calling.
Syntax: <variable name>=<function name><actual argument>
Example: f=fact(n);
b. Formal Parameters
These are the parameters which are used in function definition for processing.
Ex : main()
{
fun1( a , b ); //Calling function
}
fun1( x, y ) //called function
{
. . . . . .
}
Where
a, b are the Actual Parameters
x, y are the Formal Parameters
Methods of parameters passing:
1. Call by reference.
2. Call by value.