Write an Example Program For C Function (Using Call By Value)?

#include<stdio.h>
#include<conio.h>
// function prototype, also called function declaration
void swap(int a, int b);

int main()
{
int m = 3, n = 28;
clrscr();
// calling swap function by value
printf(” values before swap m = %d \nand n = %d”, m, n);
swap(m, n);
getch();
return(0);
}

void swap(int a, int b)
{
int tmp;
tmp = a;
a = b;
b = tmp;
printf(” \nvalues after swap m = %d\n and n = %d”, a, b);
}

Output :-

callbyvalue

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