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Example of call by reference in C Program

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Answer with Explanation


 #include <stdio.h>  
void change(int*,int*);  
int main()  
{  
    int a=10,b=20;  
    change(&a,&b); // calling a function by passing references of variables.  
    printf("Value of a is: %d",a);  
    printf("\n");  
    printf("Value of b is: %d",b);  
    return 0;  
}  
void change(int *x,int *y)  
{  
    *x=13;  
    *y=17;  
}

Output

Value of a is: 13
Value of b is: 17