Question

The parameter passing mechanism used in C is..........?
1.call by name
2. call by value
3.name call
4.none of these​

Answer 1

Answer: Call by value

Explanation:

Answer 2

Answer:

    Call by value is the correct option for the given question.

Explanation:

In the Call by Value method, the value of the actual parameter is copied into the formal parameter. There is no change in the original value when we use call by value.

In this method, the called function creates new variables for storing the value of the arguments passed to it.

example:

void xxx (int);

int main()

{ a = 10;

show(a) ; // a is actual parameter

}

void xxx ( int x )

{  print ( "%d", x ) ; // x is formal parameter.