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unresolved external symbol "a whole bunch of em"

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Join Date: Dec 2004

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Geek-Master Geek-Master is offline

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unresolved external symbol "a whole bunch of em"

Mar 23rd, 2005

Hey everyone, I'm working on my first program using "Winsock2.h".

I'm getting back linker errors "error LNK2001: unresolved external symbol ..."
9 unresolved externals total

The program came from an MSDN tutorial: "A simple winsock program", its a simple ping program that sends packets to a loopback address.

when I include winsock2.h I use

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#include <stdio.h>         // for printf
#include "winsock2.h"

I'm sure its got something to do with define, but I've never worked with that in my programs before. If someone can point me to a tutorial, I'd be very happy. Thanks for viewing.

If in doubt, reach into the trash can and remove the user guide.

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Narue

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Re: unresolved external symbol "a whole bunch of em"

Mar 24th, 2005

Did you link to wsock32.lib?

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Re: unresolved external symbol "a whole bunch of em"

Mar 24th, 2005

I googled for how to link a library and haven't found anything yet.
I'm using Visual Studio .NET for my C++ compiler. Some webpages that google turned up say that you can go into "Project" --> "Settings" --> "Linker" but there isn't a tab for settings under "Project". I guess thats a 6.0 thing and not a .NET thing.

I will be searching and google'n some more on how to link. I will also be checking up on here every now and then if you, Narue, have any info on how to link using .NET. Thanks for the help.

Last edited by Geek-Master; Mar 24th, 2005 at 1:56 pm. Reason: it needed something more ^^

If in doubt, reach into the trash can and remove the user guide.

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Re: unresolved external symbol "a whole bunch of em"

Mar 24th, 2005

I searched on how to link Wsock32.LIB and found out how.

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 C Syntax (Toggle Plain Text) 
#include <stdio.h>        // for printf
#include "winsock2.h"
 
#pragma comment( lib, "wsock32.lib" )     // This will link to wsock32.lib
 
void main()
{
       // Winsock stuff
}
#include <stdio.h>        // for printf
#include "winsock2.h"

#pragma comment( lib, "wsock32.lib" )     // This will link to wsock32.lib

void main()
{
       // Winsock stuff
}