12 top-notch libraries for C++ programming

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C++ is a basic-function systems programming language that is now additional than 40 decades aged, possessing been created in 1979. Significantly from dropping steam, C++ still ranks around the major of multiple programming language attractiveness indexes.

Smoothing the route to C++ utilization is broad help for the language amid the makers of IDEs, editors, compilers, test frameworks, code high-quality, and other resources. Software builders also have at their disposal numerous great libraries to aid with setting up C++ apps. Right here are 12 that C++ developers count on. 

Energetic Template Library

From Microsoft, Active Template Library (ATL) is a set of C++ classes for making COM (Frequent Object Design) objects, with support for COM characteristics these types of as twin interfaces, normal COM enumerator interfaces, link points, and ActiveX controls. Accessible with the Visible Studio IDE, ATL can be utilized to build single-threaded objects, apartment-model objects, no cost-threaded design objects, or each absolutely free-threaded and apartment-design objects.

Asio C++ library

The Asio C++ library is made use of for network and small-stage I/O programming, offering a regular asynchronous design. Offering primary setting up blocks for concurrency, C++ networking, and other sorts of I/O, Asio has been utilised in programs ranging from smartphone applications and game titles to really interactive sites and authentic-time transaction devices. Assignments working with Asio involve the WebSocketPP library and the DDT3 distant debugger for the Lua language. Asio is available as free of charge open up supply below the Boost Application License, and supported on Linux, Windows, MacOS, and FreeBSD.


Boost provides free, peer-reviewed transportable C++ source libraries, obtainable from strengthen.org, that work with the C++ typical library. Enhance libraries are supposed to be utilized throughout a spectrum of purposes. Among the collection are libraries for JSON, math, multi-index, file method, and geometry. Strengthen operates on most present day running methods including Linux, Unix, and Home windows. Linux and Unix distributions these types of as Debian, Fedora, and NetBSD presently include things like pre-created Boost deals.


Cinder is an open up resource library for “creative coding” in C++. Valuable for programs these kinds of as audio, computational geometry, graphics, and online video, Cinder supports platform-native windowing and function-handling, along with I/O abstraction, and has a crafted-in API for XML and JSON parsing. Created around idiomatic C++ 11 features these as shared_ptr, the library ships with quite a few samples. Cinder supports MacOS, iOS, Linux, Home windows, and Windows UWP.


Eigen is a C++ template library for linear algebra, such as matrices, vectors, numerical solvers, and connected algorithms. All matrix sizes are supported, from little, mounted matrices to arbitrarily massive, dense matrices. Algorithms are picked for trustworthiness. All standard numeric kinds are supported. For pace, Eigen capabilities expression templates to intelligently clear away temporaries and empower lazy analysis. Freely available underneath the Mozilla Public License 2 and downloadable from the Eigen task page, Eigen has been equipped with an API described by proponents as expressive and thoroughly clean and normal to C++ programmers. The test suite for Eigen has been run in opposition to numerous compilers to make certain trustworthiness.


FloatX, or Float Extended, is a header-only library for minimal-precision, floating level kind emulation. Whilst natively suitable with C++ compilers, FloatX can be called by other languages these as Python or Fortran. Floating place forms are extended outside of the native single and double precision styles. Template styles are delivered that allow for the user to pick out the number of bits utilised for the exponent as properly as important elements of the floating issue variety. FloatX is based mostly on the plan of the FlexFloat library for emulating minimized-precision floating sorts, but implements a superset of FlexFloat operation in C and provides C++ wrappers. FloatX emerged from the Open up Transprecision Computing initiative. It is available free under the Apache License 2.. 


OpenCV, or Open up Resource Computer system Eyesight Library, is a personal computer eyesight and equipment finding out library prepared natively in C++, and obtainable under an Apache 2 license. OpenCV was designed to deliver common infrastructure for laptop vision purposes and accelerate the use of equipment perception in industrial goods. A lot more than 2,500 optimized algorithms for deal with recognition, object detection, object classification, 3D model extraction, impression lookup, and much far more, OpenCV has amassed a person local community of far more than 47,000 folks. Readily available from the OpenCV undertaking website, the library delivers C++, Java, Python, and Matlab interfaces and supports Home windows, Linux, Android, and MacOS. CUDA and OpenCL interfaces are in growth.

Poco C++ Libraries

Intended to simplify C++ growth, the Poco (Moveable Elements) C++ Libraries are cross-system C++ libraries for constructing Internet and network purposes to operate on programs ranging from desktops and servers to mobile and IoT units. The libraries also can be made use of to create microservices with Rest APIs for device discovering or information analytics. The Poco libraries are related in concept to the Java Course Library, Microsoft’s .Internet Framework, or Apple Cocoa.

Developers can use Poco libraries to construct software servers in C++ that speak to SQL databases, Redis, or MongoDB, or to construct software package for IoT gadgets that discuss to cloud back again-ends. Among the options of the libraries are a cache framework, HTML form handling, an FTP consumer for transferring files, and an HTTP server and client. The Poco libraries are available cost-free less than the Raise Program License and downloadable from GitHub


Velox is an embeddable, vectorized execution library for OLAP techniques. The library is intended to optimize info processing techniques and query engines. The venture was begun as an internal engineering venture at Facebook in 2020 and then open sourced. In prevalent utilization scenarios, Velox takes a completely optimized query prepare as enter and performs the described computation. Parts involve a superior-level typing procedure, a columnar memory module, functionality deals, and community serializers. Velox is obtainable on GitHub in the Fb Incubator repo.

Windows Template Library

At first from Microsoft, the Home windows Template Library (WTL) is (due to the fact 2004) an open supply library for developing lightweight Windows apps and UI components. Positioned as an option to the Microsoft Foundation Classes toolkit, WTL extends ATL and offers a set of lessons for controls, dialogs, frame home windows, and GDI objects.


Wt is a world wide web GUI library in present day C++ that enables builders to create interactive website UIs with widgets, without having acquiring to create JavaScript. A server-aspect option, Wt does request handling and webpage rendering, delivering created-in protection, PDF rendering, a 2D and 3D portray technique, an object-relational mapping library, a charting library, and an authentication framework. The main library is open resource, furnishing a hybrid solitary-page framework that can be deployed on Linux, Unix, or Windows.

Designed by software package engineering firm Emweb, Wt is suitable with HTML5 and HTML4 browsers as well as with plain HTML consumer brokers. And Wt can integrate with 3rd-celebration JavaScript libraries. With Wt, an software is outlined as a hierarchy of widgets—ranging from generic widgets such as force buttons to specialized widgets this kind of as an entire site widget. The widget tree is rendered as HTML/JavaScript in the browser. Wt can be downloaded from the project webpage. The two open up source and commercial utilization phrases are available. 


Yocto/GL is a selection of compact C++17 libraries for developing physically-based mostly graphics algorithms. It is published in a info-oriented type for relieve of enhancement, and split into compact libraries to make code navigation less complicated. Info is saved in simple structs and accessed with no cost functions or immediately.

Yocto/GL incorporates code from the PCG random selection generator, boost hash_combine, and external libraries from the public area or that are involved with their individual licenses. The developers of Yocto/GL prefer a functional strategy instead than an item-oriented just one, favoring free of charge capabilities to course strategies. Capabilities and data are defined in sibling namespaces contained in the yocto namespace.

Yocto/GL is introduced less than the MIT license and accessible from GitHub. A C++17 compiler is needed.

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