Cpp Concepts — C++ Examples & Mini-Projects

A curated collection of small C++ programs and demo projects exploring core language concepts, data structures, memory management, file I/O, multithreading, and FFI with Python. The repo is primarily C++ with a small amount of Python.

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Table of contents

• About
• What's included
• Quick start
  • Build a single example (g++)
  • Build with CMake (recommended for larger folders)
  • Run Python examples
• Folder overview
• Contributing
• License

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About

This repository collects small, focused examples created while learning and practicing modern C++. Examples are intentionally compact and well-commented so you can run, tweak, and learn quickly.

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What's included

• Hands-on examples for OOP, data structures, file handling, memory management, multithreading, templates (in progress), and more.
• Python helper scripts and FFI examples demonstrating C++ ↔ Python interoperability.

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Quick start

Build a single example (g++)

Locate the .cpp file you want to run (for example examples/foo.cpp) and compile:

# compile
g++ -std=c++17 -O2 -Wall path/to/example.cpp -o example

# run
./example

Adjust -std to match the example (e.g., -std=c++11, -std=c++17) if required.

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Build with CMake (recommended for folders)

If a folder includes CMakeLists.txt, use CMake:

mkdir -p build && cd build
cmake ..
cmake --build .
# run binaries from build/

If no CMakeLists.txt exists, build examples individually with g++ as shown above.

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Run Python examples

Some examples include Python utilities or FFI demos:

# run a Python script
python3 scripts/example.py

# if requirements provided
python3 -m pip install -r requirements.txt
python3 demo.py

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Folder overview

Typical folders in this repo:

• basic-concepts — syntax, I/O, control flow
• oop-concepts / custom-header-class — classes, headers
• data-structures — lists, stacks, queues, STL demos
• memory-management — pointers, RAII, smart pointers
• file-handling — file streams & parsing examples
• multithreading — threads, mutexes, concurrency examples
• Cpp-foreign-function-interfaces / Cpp-Python-FFI-with-Pybind11 — FFI examples
• README.md — this file

Refer to each folder for its own notes and examples.

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Contributing

Contributions welcome — keep examples small, focused, and well-commented.

1. Fork the repo
2. Create a branch: git checkout -b feature/<topic>
3. Add your example(s) and a short README or comments
4. Commit, push, and open a Pull Request

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License

This project is licensed under the MIT License — see the LICENSE file for details.