#include <iostream>
#include <fstream>
 
 
int main()
{
    std::ifstream a_file("testdata.dat", std::ifstream::in);
    float var = 0.0;
    float x[8192], y[8192];
    int length; 
  
    length=0; 
    while(a_file.eof() == false)
    {
        a_file >> x[length];
        a_file >> y[length];  //should skip white spaces and store number;
        length++;
    }
    length--;

    for ( int i=0; i<length; i++ ) {
        std::cout << x[i] << " " << y[i] << std::endl;
    } 
}