Question

Explain Call by value method with suitable example,​

Answer 1

Answer:

Function call by value is the default way of calling a function in C programming. Before we discuss function call by value, lets understand the terminologies that we will use while explaining this:

Actual parameters: The parameters that appear in function calls.

Formal parameters: The parameters that appear in function declarations.

For example:

#include <stdio.h>

int sum(int a, int b)

{

int c=a+b;

return c;

}

int main(

{

int var1 =10;

int var2 = 20;

int var3 = sum(var1, var2);

printf("%d", var3);

return 0;

}

In the above example variable a and b are the formal parameters (or formal arguments). Variable var1 and var2 are the actual arguments (or actual parameters). The actual parameters can also be the values. Like sum(10, 20), here 10 and 20 are actual parameters.

Answer 2

Answer:

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Explanation:

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