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;
}

<br />
int passive_sock(int port, int qlen)<br />
{<br />
	struct sockaddr_in sin;<br />
	int s;<br />
	int flag=1;<br />
	int rv;<br />
<br />
	memset((char *)&sin, 0, sizeof(sin));<br />
	sin.sin_family = AF_INET;<br />
	sin.sin_addr.s_addr =INADDR_ANY;	<br />
	sin.sin_port = htons(port);<br />
	s = socket(AF_INET, SOCK_DGRAM, 0);<br />
    rv=setsockopt(s,SOL_SOCKET,SO_BROADCAST,(char *)&flag,sizeof(flag));<br />
	if (s<0) return -1;<br />
	if (bind(s, (struct sockaddr *)&sin, sizeof(sin)) < 0) return -2;<br />
<br />
	if (listen(s, qlen) < 0){<br />
		return -3;<br />
		printf("listen error");<br />
	}<br />
	return s;<br />
}<br />

<br />
server.sin_family=AF_INET;<br />
server.sin_addr.s_addr=INADDR_BROADCAST;<br />
server.sin_port = htons(port);<br />
<br />
opt=(char *)malloc(10);<br />
strcpy(opt,"TRUE");<br />
//opt=(char*)TRUE;<br />
conn_socket = socket(PF_INET,SOCK_DGRAM,0); <br />
retval=setsockopt(conn_socket,SOL_SOCKET,SO_BROADCAST,(char *)&flag,sizeof(flag));<br />
connect(conn_socket,(struct sockaddr*)&server,sizeof(server);<br />