csvpp

HowToUseCSVPP


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How to use csvpp

Details =

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

Created: 11 years 7 months ago
by Natalie Adams

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