⚙️ C++ Modules 00–06

The 42 C++ piscine — from namespaces and classes to casts, templates and STL thinking.

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📋 Table of Contents

• About
• Module Map
• Getting Started
• Conventions
• Layout
• What I Learned
• Author

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📖 About

Six modules that rebuild C++ from scratch the hard way: no STL in the early ones, hand-written classes, manual memory, and a compiler that only says -Wall -Wextra -Werror. Each module is its own directory with its own exercises, and the subject PDF is kept wherever the curriculum ships one.

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🗺 Module Map

Module	Focus	Exercises
cpp00	namespaces, classes, member functions, std::iostream	ex00, ex01
cpp01	memory allocation, references vs pointers, file streams, function pointers	ex00–ex06
cpp02	ad-hoc polymorphism, operator overloading, fixed-point numbers, Orthodox Canonical Form	ex00–ex03
cpp03	inheritance — single, multiple and diamond cases	ex00–ex02
cpp04	abstract classes, interfaces, virtual inheritance	ex00–ex02
cpp05	exceptions, try / catch / throw, nested exception types	ex00–ex03
cpp06	C-style casts vs static_cast, dynamic_cast, reinterpret_cast, const_cast	ex00–ex02

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🚀 Getting Started

cd cpp00/ex00
make          # or: c++ -Wall -Wextra -Werror -std=c++98 *.cpp -o ex00
./ex00

Every exercise is self-contained and carries its own Makefile with the usual all, clean, fclean and re targets.

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🧾 Conventions

• -std=c++98 — no C++11 conveniences: no auto, no range-for, no nullptr.
• Orthodox Canonical Form on every class that manages resources: default constructor, copy constructor, copy assignment operator, destructor.
• Header guards against double inclusion; each class gets a header plus an implementation file.
• The build must run clean under -Wall -Wextra -Werror.

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🗂 Layout

cpps/
├── cpp00/  namespaces, classes, stdio streams
├── cpp01/  memory, references, files, function pointers
├── cpp02/  polymorphism, operators, fixed point
├── cpp03/  inheritance
├── cpp04/  abstract classes and interfaces
├── cpp05/  exceptions
└── cpp06/  casts + en.subject.pdf

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🧠 What I Learned

• Where a reference and a pointer actually differ, and which one the situation wants.
• Why the Orthodox Canonical Form exists, and what breaks without it.
• How virtual dispatch is implemented — vtables versus explicit this.
• Treating a failed dynamic_cast as a design smell rather than a bug.

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👤 Author

İrfan Kerem Arslan — @ifrankerem

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📄 License

Built for the 42 Common Core C++ modules. Shared for learning and portfolio purposes.

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🙏 Acknowledgements

• awesome-readme — structure inspiration for this README