#include <iostream>
#include <fstream>
using namespace std;

int countfile(char *filename);
double *makearray(char *filename);

int main(void)
{
 char *filename="doubles1.txt";
 double *array=makearray(filename);
 for(int i=0;i<countfile(filename);i++)
  cout << "array[" << i << "]=" << array[i] << endl;
}

int countfile(char *filename)
{
 fstream filestr;
 int count=0;
 double d;
 filestr.open(filename, ios::in);
 while(!filestr.eof()) // Yes harv, this fixes the count being one off error
  filestr >> d && count++; // cause the read will return false and not incriment
 filestr.close();
 return count; // and thus count is correct
}

double *makearray(char *filename)
{
 fstream filestr;
 int i=0;
 double *dblArr = new double[countfile(filename)];
 filestr.open(filename, ios::in);
 while(!filestr.eof())
  filestr >> dblArr[i++];
 filestr.close();
 return dblArr;
}