pass the pointer in c

1// passing a pointer to function in C
2// It increaments the salary of an employee
3
4
5#include <stdio.h>
6void salaryhike(int  *var, int b)
7{
8    *var = *var+b;
9}
10int main()
11{
12    int salary=0, bonus=0;
13    printf("Enter the employee current salary:"); 
14    scanf("%d", &salary);
15    printf("Enter bonus:");
16    scanf("%d", &bonus);
17    salaryhike(&salary, bonus);
18    printf("Final salary: %d", salary);
19    return 0;
20}