C / C++ / MFC

double readDouble(istream& is)
{
    char buffer[sizeof(double)];
    is.read(buffer,sizeof(double));
    return (double)(*(reinterpret_cast<double*>(buffer)));
}

#include <fstream>
#include <iostream>

using namespace std;

/**
 * Reads a buffer from an input stream
 */
double readDouble(istream& is)
{
    // Allocates a raw buffer big enough to store a single floating point number
    char buffer[sizeof(double)];
    // Reads the sizeof(double) bytes from the file
    is.read(buffer,sizeof(double));
    // Converts the buffer to a pointer to a double, then to a double
    return (double)(*(reinterpret_cast<double*>(buffer)));
}

int main()
{
    // Open file, as read only, binary
    ifstream fin("your_filename_here.bin",ios::in|ios::binary);

    double data;
    int numPoints = 1000;
    for(int i = 0; i < numPoints; ++i)
    {
        // read a number from the file
        data = readDouble(fin);
        cout << data << endl;
    }
    return 0;
}