A hands-on workshop repository for modern C++ topics, from CMake basics to C++23 modules.

• CMake 3.28+
• A C++23-capable compiler/toolchain
• Ninja (recommended generator in this repo)

From the repository root:

cmake -S . -B build -G Ninja
cmake --build build

Then run any module target executable from build/<module-folder>/.

• Focus: CMake fundamentals and dependency management with FetchContent
• Demonstrates fetching and linking spdlog
• Target: 00IntroToCMake (built from that module's own CMake project)

• Focus: std::unique_ptr ownership, borrowing, and move semantics
• Demonstrates ownership transfer vs borrowing APIs and mutation through references
• Target: 01SmartPtrs

• Focus: modern standard-library vocabulary types and formatting/printing APIs
• Demonstrates optional, variant, filesystem, tuple, any, expected, format, and print/println
• Includes std::expected monadic flow with and_then and transform
• Target: 02ModernStd

• Focus: shortcomings of SFINAE and modern constraints with concepts
• Demonstrates concept definitions, constrained templates, concept-based overloads, and compile-time polymorphism
• Target: 03Concepts

• Focus: modern language syntax and compile-time features
• Demonstrates trailing return types, constrained auto, structured bindings, constexpr, if constexpr, consteval
• Includes variant visitation with overloaded constrained handlers and notes on pack expansion/fold syntax
• Target: 04ModernLang

• Focus: ranges, views, constrained algorithms, and pipeline composition
• Demonstrates drop, filter, transform (map), for_each, fold_left, and pipe syntax
• Target: 05RangesViews

• Focus: C++ modules architecture and dependency hygiene
• Demonstrates primary module interface, partitions, implementation unit, global/private fragments, and forward declarations for cross-references
• Explains avoiding cyclic module imports with acyclic module structure
• Target: 06CppModules

Examples:

./build/01-smart-ptrs/01SmartPtrs
./build/02-modern-std/02ModernStd
./build/03-concepts/03Concepts
./build/04-modern-lang/04ModernLang
./build/05-ranges-views/05RangesViews
./build/06-cpp-modules/06CppModules