Building and testing is quite quick and only involves several steps. Before proceeding, it should be noted that this quick test targets Linux. This makes a difference because in Linux C++ shared libraries have a *.so file extension compared to Windows having a *.dll file extension. The Program.cs file is looking for a shared library with an extension ending is *.so. As is this test will not work on Windows without some modifications.

Required

Linux
.NET Core 3.1
GCC >= 7 or clang >= 7

Building C++ library

Change into the C++ Libs directory and create a build directory

cd Libs; mkdir build

Build the C++ library

cd build; cmake -DCMAKE_BUILD_TYPE=DEBUG ..; make

Copy the library to the root of the project

cp libTestExample.so ../../

Building .NET console software

Ensure that you are in the root of the project. Then build the software

dotnet build

Copy the C++ library to where the executable is build

cp libTestExample.so bin/Debug/netcoreapp3.1/

Run the software

dotnet run

The .NET code is calling a function from the C++ library that was built. The result is the sum of two integers