C++ 🤖

You, who loves a difficult to write and extremely performant program... Run before it's too late!

• Fundamentals
• Object-Oriented Programming
• Recursion
• Practical Algorithms
• Modern C++ features (C++11 and later)
• The Boost Library

Setting Up C++ on Linux

To get started with C++ development, you can install the essential tools via your package manager. On Ubuntu/Debian-based systems, run:

sudo apt update
sudo apt install build-essential

This installs both the C and C++ compilers (gcc and g++), along with useful build tools like make.

Always recommended! For debugging and memory checking, install:

sudo apt install gdb valgrind

Setting Up Language Server (LSP) for Neovim

If you use Neovim with Mason.nvim, you can install the clangd language server for better code intelligence:

1. Open Neovim.
2. Run :Mason and search for clangd.
3. Install clangd from Mason's UI.

Setting up CMake to try out new C++ features (e.g., C++26)

• When compiling with a new standard, use the appropriate flag (e.g., -std=c++2b or -std=c++26 when it’s officially supported):

  g++ -std=c++2b main.cpp -o main
  

• However, with this alone, your LSP won't understand the new syntax.

• To solve this, we can use CMake to have everything in sync.

• Create a CMakeLists.txt file in your project folder:

cmake_minimum_required(VERSION 3.25)
project(test_program LANGUAGES CXX)

set(CMAKE_CXX_STANDARD 26)
set(CMAKE_EXPORT_COMPILE_COMMANDS ON)

add_executable(compiled_test_program main.cpp)

• Then:

mkdir build && cd build
cmake ..
make

CMake also has the advantage of making your project work with any compiler and make cross platform builds, so it's generally a great idea to use it in a project.

Setting up clangd on its own to try out new C++ features

• There is also a way to let clangd know that you are using the C++26 standard, without having to bundle a whole project with CMake (if you just want to quickly test it without this linter screaming at you).

To do that, simply create a .clangd file in the directory where you store your C++ "experiments" and add this:

CompileFlags:
  Add: [-std=c++26]