Hypodermic <img align="center" src="../master/resources/syringe_by_Andy_Selimov_from_thenounproject.png?raw=true" width="56">

Hypodermic is a non-intrusive header only IoC container for C++. It provides dependency injection to your existing design by managing the creation of your components and their dependencies in the right order, sparing you the trouble of writing and maintaining boiler plate code.

Used in production environments since 2012.

First steps

Configure the container by registering your components

ContainerBuilder builder;

builder.registerType< MessageDispatcher >();

auto container = builder.build();

... then ask the container to give you an instance of that type

auto dispatcher = container->resolve< MessageDispatcher >();

Want to discover what happened here? Learn to use more features through the beginner's guide on the wiki.

Benchmarks

Some comparative benchmarks are available on the wiki, check them out.

Acknowledgment

Hypodermic was started with the will to mimic the famous .NET Autofac http://autofac.org/. Although its design evolved, both its behavior and its expressiveness tend to remain the same.

Constructor deduction has been made possible thanks to the work of Krzysztof Jusiak in http://boost-experimental.github.io/di/.