modern-cpp-features - A cheatsheet of modern C++ language and library features.

Many of these descriptions and examples come from various resources (see Acknowledgements section), summarized in my own words. Also, there are now dedicated readme pages for each major C++ version.

doctest - The fastest feature-rich C++11 single-header testing framework for unit tests and TDD

•    C++

doctest is a new C++ testing framework but is by far the fastest both in compile times (by orders of magnitude) and runtime compared to other feature-rich alternatives. It brings the ability of compiled languages such as D / Rust / Nim to have tests written directly in the production code by providing a fast, transparent and flexible test runner with a clean interface. The framework is and will stay free but needs your support to sustain its development. There are lots of new features and maintenance to do. If you work for a company using doctest or have the means to do so, please consider financial support. Monthly donations via Patreon and one-offs via PayPal.

hana - Your standard library for metaprogramming

•    C++

You can browse the documentation online at http://boostorg.github.io/hana. The documentation covers everything you should need including installing the library, a tutorial explaining what Hana is and how to use it, and an extensive reference section with examples. The remainder of this README is mostly for people that wish to work on the library itself, not for its users. After issuing this, doc/html will contain exactly the same static website that is available online. Note that doc/html is automatically ignored by Git so updating the documentation won't pollute your index.

immer - Postmodern immutable and persistent data structures for C++

•    C++

immer is a library of persistent and immutable data structures written in C++. These enable whole new kinds of architectures for interactive and concurrent programs of striking simplicity, correctness, and performance. In the last few years, there has been a growing interest in immutable data structures, motivated by the horizontal scaling of our processing power and the ubiquity of highly interactive systems. Languages like Clojure and Scala provide them by default, and implementations for JavaScript like Mori and Immutable.js are widely used, specially in combination with modern UI frameworks like React.

modern-cpp-tutorial - 📚 C++11/14/17 On the Fly

•    C++

📚 C++11/14/17 On the Fly

rpclib - rpclib is a modern C++ msgpack-RPC server and client library

•    C++

When srv.run() is called, rpclib starts the server loop which listens to incoming connections and tries to dispatch calls to the bound functions. The functions are called from the thread where run was called from. There is also async_run that spawns worker threads and returns immediately. All planned 1.0.0 features are done and tested; the current state is production-ready.

mio - Cross-platform C++11 header-only library for memory mapped file IO

•    C++

An easy to use header-only cross-platform C++11 memory mapping library with an MIT license. mio has been created with the goal to be easily includable (i.e. no dependencies) in any C++ project that needs memory mapped file IO without the need to pull in Boost.

FunctionalPlus - Functional Programming Library for C++. Write concise and readable C++ code.

•    C++

helps you write concise and readable C++ code. Great code should mostly be self-documenting, but while using C++ in reality you can find yourself dealing with low-level stuff like iterators or hand-written loops that distract from the actual essence of your code.

jucipp - A lightweight & cross-platform IDE supporting the most recent C++ standards

•    C++

This project has moved to https://gitlab.com/cppit/jucipp. Current IDEs struggle with C++ support due to the complexity of the programming language. juCI++, however, is designed especially towards libclang with speed, stability, and ease of use in mind.

osrm-backend - Open Source Routing Machine - C++ backend

•    C++

High performance routing engine written in C++14 designed to run on OpenStreetMap data. To quickly try OSRM use our demo server which comes with both the backend and a frontend on top.

CppCon2020 - Slides and other materials from CppCon 2020

•    C++

https://github.com/CppCon/CppCon2020 is the canonical location for presentations and code from CppCon 2020.

pfr - std::tuple like methods for user defined types without any macro or boilerplate code

•    C++

This is a C++14 library for very basic reflection that gives you access to structure elements by index and provides other std::tuple like methods for user defined types without any macro or boilerplate code. Boost.PFR is a part of the Boost C++ Libraries. However, Boost.PFR is a header only library that does not depend on Boost. You can just copy the content of the "include" folder from the github into your project, and the library will work fine.

rang - A Minimal, Header only Modern c++ library for terminal goodies 💄✨

•    C++

rang only depends on C++ standard library, unistd.h system header on unix and windows.h & io.h system headers on windows based systems. In other words, you don't need any 3rd party dependencies. rang is a single header-only library. Put rang.hpp in the include folder directly into the project source tree or somewhere reachable from your project.

magic_get - std::tuple like methods for user defined types without any macro or boilerplate code

•    C++

This C++14 library is meant for accessing structure elements by index and providing other std::tuple like methods for user defined types without any macro or boilerplate code. Distributed under the Boost Software License, Version 1.0.

Vc - SIMD Vector Classes for C++

•    C++

Recent generations of CPUs, and GPUs in particular, require data-parallel codes for full efficiency. Data parallelism requires that the same sequence of operations is applied to different input data. CPUs and GPUs can thus reduce the necessary hardware for instruction decoding and scheduling in favor of more arithmetic and logic units, which execute the same instructions synchronously. On CPU architectures this is implemented via SIMD registers and instructions. A single SIMD register can store N values and a single SIMD instruction can execute N operations on those values. On GPU architectures N threads run in perfect sync, fed by a single instruction decoder/scheduler. Each thread has local memory and a given index to calculate the offsets in memory for loads and stores. Current C++ compilers can do automatic transformation of scalar codes to SIMD instructions (auto-vectorization). However, the compiler must reconstruct an intrinsic property of the algorithm that was lost when the developer wrote a purely scalar implementation in C++. Consequently, C++ compilers cannot vectorize any given code to its most efficient data-parallel variant. Especially larger data-parallel loops, spanning over multiple functions or even translation units, will often not be transformed into efficient SIMD code.

Fit - C++ function utility library

•    C++

Fit is a header-only C++11/C++14 library that provides utilities for functions and function objects, which can solve many problems with much simpler constructs than whats traditionally been done with metaprogramming. This requires a C++11 compiler. There are no third-party dependencies. This has been tested on clang 3.5-3.8, gcc 4.6-6.2, and Visual Studio 2015. Gcc 5.1 is not supported at all, however, gcc 5.4 is supported.

dll - Deep Learning Library (DLL) for C++ (ANNs, CNNs, RBMs, DBNs...)

•    C++

DLL is a library that aims to provide a C++ implementation of Restricted Boltzmann Machine (RBM) and Deep Belief Network (DBN) and their convolution versions as well. It also has support for some more standard neural networks. Note: When you clone the library, you need to clone the sub modules as well, using the --recursive option.

dyno - Runtime polymorphism done right

•    C++

At this point, this library is experimental and it is a pure curiosity. No stability of interface or quality of implementation is guaranteed. Use at your own risks. Dyno solves the problem of runtime polymorphism better than vanilla C++ does. It provides a way to define interfaces that can be fulfilled non-intrusively, and it provides a fully customizable way of storing polymorphic objects and dispaching to virtual methods. It does not require inheritance, heap allocation or leaving the comfortable world of value semantics, and it can do so while outperforming vanilla C++.

hof - Higher-order functions for c++

•    C++

HigherOrderFunctions is a header-only C++11/C++14 library that provides utilities for functions and function objects, which can solve many problems with much simpler constructs than whats traditionally been done with metaprogramming. This requires a C++11 compiler. There are no third-party dependencies. This has been tested on clang 3.5-3.8, gcc 4.6-7, and Visual Studio 2015 and 2017.

entt - Gaming meets modern C++ - a fast and reliable entity-component system (ECS) and much more

•    C++

Consider it a work in progress. The whole API is also fully documented in-code for those who are brave enough to read it. Currently, EnTT is tested on Linux, Microsoft Windows and OS X. It has proven to work also on both Android and iOS. Most likely it will not be problematic on other systems as well, but has not been sufficiently tested so far.