cpp_design_patterns

Code for the Design Patterns in Modern C++ course from Udemy.

Design patterns are common architectural approaches. They were popularized by the Gang of Four book (1994) for Smalltalk and C++.

Gamma Categorization

They are tipically split into three categories. This is called Gamma Categorization after Erich Gamma, one of the GoF authors.

Creational Patterns

• Deal with the creation of objects.
• Explicit vs. Implicit: Constructor vs. [Dependency Injection, reflection, ...].
• Wholesale vs. piecewise initialization.

Structural Patterns

• Concerned with the structure (e.g., class members).
• Many patterns are wrapers that mimic the underlying class interface.
• Stress the importance of godd API design. Make API usable for other people.

Behavioral Patterns

• They are all different; no central theme.
• They solve particular problems.

Principles and Patterns

• SOLID Principles
  • Single Responsibility
  • Open-Closed
  • Liskov Substitution
  • Interface Segregation
  • Dependency Inversion
• Creational Patterns
  • Builder
  • Factory
  • Prototype
  • Singleton
• Structural Patterns
  • Adapter
  • Composite
  • Decorator
  • Façade
  • Flyweight
  • Proxy
• Behavioral Patterns
  • Chain of Responsibility
  • Command
  • Interpreter
  • Iterator
  • Mediator
  • Memento
  • Observer
  • State
  • Strategy
  • Template Method
  • Visitor

Building the code

sudo apt install libboost-serialization-dev
sudo apt install gcc-10 g++-10 # C++20

mkdir -p build && cd build
cmake -D CMAKE_C_COMPILER=gcc-10 -D CMAKE_CXX_COMPILER=g++-10 -DCMAKE_INSTALL_PREFIX=../bin .. && make
make install