C ?

when i make the basic hello world program as soon as i run it, it closes how do i end that? and can any one plz tell me if there is a way to see your IP with C?

thanks

 

If you are running it you need to run it through the command prompt. Or you can always set it to sleep and then make the number -1 so it would be sleep -1 at the end. I'm not sure if thats how to do it in c but it is in c++. But I know for a fact taht if you run it from the command prompt it will work.

 

Yea a lot depends on the environment its being run in. For instance if you write the program in something like Visual C++ and run it it automatically runs in a command window but once the program finishes that window automatically closes.
Add a 'getch();' statement before your main function returns or ends and the program will wait till you hit a key if the above is the case.

 

You can put "cin.get();" before "return 0;" and that will keep the window open until you hit a key.

 

hmmm gonna be picky now - but that command looks suspiciously like a C++ method call... sorry... Im bored.

 

It is C++.

 

#include <stdio.h>


system("Pause");

or

getch()

and the answer to IP question

Code:

link in  winsock libs, forget the names
include windows.h

     WSADATA WsaDat;
     if (WSAStartup(MAKEWORD(1, 1), &WsaDat) != 0)
           {
            printf("WSA Initialization failed.");
           }

      SOCKET Socket;
      Socket = socket(AF_INET, SOCK_STREAM, 0);
      if (Socket == INVALID_SOCKET)
           {
          printf("Socket creation failed.");
           }

HOSTENT *HostInfo;
HostInfo = gethostbyname("computer");
if (HostInfo == NULL)
      {
      printf("Attempt to retreive computer information failed.");
      }

SOCKADDR_IN SockAddr;
HOSTENT *HostInfo;
SockAddr.sin_addr.S_un.S_un_b.s_b1 = (unsigned char)HostInfo->h_addr_list[0][0];
SockAddr.sin_addr.S_un.S_un_b.s_b2 = (unsigned char)HostInfo->h_addr_list[0][1];
SockAddr.sin_addr.S_un.S_un_b.s_b3 = (unsigned char)HostInfo->h_addr_list[0][2];
SockAddr.sin_addr.S_un.S_un_b.s_b4 = (unsigned char)HostInfo->h_addr_list[0][3];

code for ip taken from
http://www.planet-source-code.com/vb/scripts/ShowCode.asp?txtCodeId=2241&lngWId=3

 

thanks every one