"link" - Link Object Files (*.obj)

Q

How to use "link" command tool to link objet files?

✍: FYIcenter.com

A

If you have object files previously compiled by your or others, you can follow this tutorial to link them into executable files:

1. Create a simple C++ program, Hello.cpp, with a text editor:

#include <iostream>  
using namespace std;  
void main() {  
    cout << "Hello, world, from Visual C++!" << endl;  
}

2. Run "All Programs > Visual Studio 2017 > Visual Studio Tools > Developer Command Prompt for VS 2017". You see the Visual Studio Command Prompt window.

3. Compile the source file Hello.cpp with "cl -c" to generate the object file only. You see Hello.obj generated:

C:\fyicenter>
C:\fyicenter>cl /c /EHsc Hello.cpp
Microsoft (R) C/C++ Optimizing Compiler Version 19.10.25019 for x86
Copyright (C) Microsoft Corporation.  All rights reserved.

Hello.cpp

C:\fyicenter>dir Hello.*
10:23 PM               122 Hello.cpp
10:33 AM            95,055 Hello.obj

4. Link the object file Hello.obj with "link" to generate the executable file. You see Hello.exe generated:

C:\fyicenter>link Hello.obj
Microsoft (R) Incremental Linker Version 14.10.25019.0
Copyright (C) Microsoft Corporation.  All rights reserved.

C:\fyicenter>dir Hello.*
10:23 PM               122 Hello.cpp
10:35 AM           186,880 Hello.exe
10:33 AM            95,055 Hello.obj

4. Run the executable file Hello.exe:

C:\fyicenter>Hello.exe
Hello, world, from Visual C++!

 

Using Visual Studio Command Prompt

⇒⇒Visual Studio Tutorials

2017-08-21, 285👍, 0💬