"MyLibApp.cpp" - Call C++ Class from Static Library

Q

How to call a function from a C++ class provided in a static library?

✍: FYIcenter.com

A

If you want to call a function from a C++ class provided in a static library, you can follow this tutorial:

1. Specify the namespace of the C++ class:

using namespace fyi;

2. Reference the function with the class name prefix:

    MyLib::printHello();

3. See the following full source code example, MyLibApp.cpp:

// MyLibApp.cpp
// Copyright (c) FYIcenter.com

#include "MyLib.h"
using namespace fyi;

int main() {
    MyLib::printHello();
}

4. Compile and run the example, MyLibApp.exe:

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

MyLibApp.cpp
Microsoft (R) Incremental Linker Version 14.10.25019.0
Copyright (C) Microsoft Corporation.  All rights reserved.

/out:MyLibApp.exe
MyLibApp.obj
MyLib.lib

C:\fyicenter>MyLibApp.exe
Hello world! - From MyLib

 

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2017-08-07, 105👍, 0💬