ordenar array

#include <iostream>
#include <array>

using namespace std;

void swap (int& a, int& b)
{
    int aux = a;
    a = b;
    b = aux;
}

void ordenar_array (array<int,10>& a)
{
    int j; int c=0; bool b = false;
    while (not b)
    {
        for (int i=0; i<9; i++)
        {
            if (a.at(i) > a.at(i+1))
                swap(a.at(i),a.at(i+1));
            c++;
        }
        for (j=0; j<9; j++)
            if (a.at(j) > a.at(j+1))
            {
                b = false;
                break;
            }

        if (j == 9)
            b = true;
    }

    cout << c << endl;

}

int main()
{
    array<int,10> arr = {0,1,4,7,2,5,8,3,6,9};

    ordenar_array(arr);



    for (int i=0; i<10; i++)
        cout << arr.at(i) << ' ';
    cout << endl;


    return 0;
}