⚙️ The basics of CMake

📖 Primer

For completing this course you need to have installed on your machine:

• CMake
• Any c++ compiler
• A text editor(an IDE is recommended)

Windows(WSL)

⚠️ Disclaimer: for licenses issues and in order to uniform the instructions respect to the linux procedure this hands-on can be done on Windows using the Windows Subsystem for Linux(WSL).

Once it has been installed correctly simply follow the instructions for linux.

It may be better to use a text editor to follow the hands on, then I suggest you to see these instructions to run graphical applications on WSL.

Linux

• Get the c++ compiler, open a terminal and type:

  $ sudo apt-get install build-essential

• Get cmake:

  $ sudo apt-get install cmake

• Get cmake gui(optional but highly recommended):

  $ sudo apt-get install cmake-curses-gui

• Get the text editor(optional but highly recommended):

  $ sudo apt-get install geany

Actually you can install the whatever text editor you like (e.g. kate, gedit, nano, vim, atom, vs-code).

📝 Hands-on

The hands-on consist in the compilation of a simple executable that given 2 numbers (15 and 10), calculate the sum and the differece. Follow these steps:

1. Open the CMakeLists.txt and fill all the TODO sections, following the teacher instructions.
2. Once finished and saved create the build directory: $ mkdir build
3. Enter in the build directory: $ cd build
4. Configure and generate the makefiles: $ cmake ..
5. Compile your program: $ make
6. Run: ./myExecutable

The output should be:

Executable standalone example
The operators are: 15 and 10
The sum is: 25
The difference is: 5

if everything is fine you have to commit your work then:

$ git commit -am "My hands on works!"
$ git push origin master

ℹ This repository contains the material required for the training on basics of CMake.