passing data into buffer

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C++

Hi,

I send the data from sensor, data0,data1,data2,data3

result of my program is
data0
data1
data2
data3

but I want to save the each data in a buffer such as
y0=data0
y1=data1
y2=data2
y3=data4

any one can help me?

#include <iostream>
#include <string>
#include <sstream>
#include <Windows.h>

#include "SerialClass.h"

char buffer[25];


using namespace std;

int i;
int main()
  {
	  Serial oSerial("COM8:");

	  oSerial.WriteData("1",1);
		   Sleep(100);
		   oSerial.ReadData(buffer,25);
    string str = buffer;
    string word;
    stringstream stream(str);

    while( getline(stream, word, ',') )	
		cout <<word << "\n";
	
	

	Sleep (10000);
  }