Sort 3 number using only if

We are trying to sort three numbers using If-Else only and no sorting algorithm.
There are couple of possibilities but the easiest one with minimum comparison is presented here.

C++ Code

       
#include <iostream>

using namespace std;

void smallSort(int &a, int &b, int &c) {
    if(a > b) { // if a is greater than b, swap them        
        int temp = a;
        a = b;
        b = temp;
    }

    if(a > c) { // if a is greater than c, swap them        
        int temp = a;
        a = c;
        c = temp;
    }

    // Now A is the smallest. We just need to compare B and C and swap if needed.    
    if(b > c) {
        int temp = b;
        b = c;
        c = temp;
    }
}

int main(){
    int a = 14;
    int b = -90;
    int c = 2;
    smallSort(a, b, c);
    cout << a << ", " << b << ", " << c << endl;

    return 0;
}