// ostringstream example

#include <iostream>
#include <iomanip>
#include <sstream>
#include <string>
using namespace std;

void print(double number);

int main()
{
    double array[] = {1,1.2,1.23,1.234,123.45,1234.56,12345.67,1234.5678};

    for (auto element : array)
        print(element);
}

void print(double number)
{
    ostringstream sout;
    cout << left << setw(12) << setprecision(8) << number;
    sout << setprecision(2) << fixed << '$';
    if (number > 1000)
    {
        int thousands = static_cast<int>(number) / 1000;
        sout << thousands << ',';
        sout << number - thousands*1000;
    }
    else
    {
        sout << number;
    }
    cout << right << setw(16) << sout.str() << endl;
}