How to use csvpp

How to use CSVPP

Inside of csvpp.h there are 3 different objects: * RowReader * RowWriter * rowiterator Each of these objects are located in the namespace csvpp.

Note - if you want to use fields you should have one stream statement before looping through the data For example:

fileistream >> tmp; //this populates the fields
while(!fileistream.eof())
fileistream >> tmp;

Otherwise you will end up trying to access an empty row.

Example 1, using a string:

#include <iostream>
#include <sstream>
#include "csvpp.h"

using namespace std;
using namespace csvpp;

int main()
{

    RowReader tmp;
        stringstream ss;
        ss << "field1,field2,field3\r\n123,234,345\r\n999,000,111\r\n";
        ss >> tmp;
        rowiterator it;
        while(ss >> tmp)
        {
                for(it = tmp.begin(); it != tmp.end(); it++)
                        cout << it->first << " => " << it->second << endl;
                cout << endl;
        }
        return 0;

}

Example 2, using a file:

#include <iostream>
#include <fstream>
#include "csvpp.h"

using namespace std;
using namespace csvpp;

int main()
{
        ifstream f("sampledata.csv");
        RowReader tmp;
        //RowWriter rw;
        f >> tmp;
        rowiterator it;
        while(f >> tmp)
        {
                //rw.push_back(tmp);
                for(it = tmp.begin(); it != tmp.end(); it++)
                        cout << it->first << " => " << it->second << endl;
                cout << endl;
        }
        return 0;
}