Design Patterns

This is my Design Patterns repository containing state of the art examples of practical usage of Design Patterns in modern C++.

Gamma Categorization

Design Patterns are typically split into three categories. This is called Gamma Categorization after Erich Gamma, one of Gang of Four authors.

1. Creational Patterns:
   • Deal with the creation (construction) of objects
   • Explicit (constructor) vs. implicit (DI, reflection, etc.)
   • Wholesale (single statement) vs. piecewise (step-by-step)
2. Structural Patterns:
   • Concerned with the structure (e.g. class members)
   • Many patterns are wrappers that mimic the underlying class' interface
3. Behavioral Patterns:
   • They are all different - no central theme

How to run the code locally with Bazel already installed on host

Bazel installation

Install Bazel

Once you have successfully installed Bazel you can run the code using:

bazel test //creational_patterns/factory_pattern

Run the code inside a container

You can use my following Docker image to instantiate a container locally with Ubuntu and Bazel already installed:

docker run -it --rm framaxwlad/ubuntu_dev:latest

There you can simply clone the repository:

git clone https://github.com/FBorowiec/design_patterns.git
cd design_patterns/

And use a bazel command to run the program:

bazel test //structural_patterns/exercises:structural_patterns_test