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12 top-notch libraries for C++ programming

C++ is a common-purpose methods programming language that is now additional than 40 years previous, possessing been developed in 1979. Much from losing steam, C++ even now ranks in close proximity to the major of various programming language acceptance indexes.

Smoothing the path to C++ utilization is wide support for the language among the makers of IDEs, editors, compilers, check frameworks, code top quality, and other equipment. Program developers also have at their disposal numerous excellent libraries to assist with building C++ applications. Right here are 12 that C++ builders count on. 

Lively Template Library

From Microsoft, Lively Template Library (ATL) is a established of C++ classes for making COM (Widespread Item Design) objects, with assist for COM attributes these kinds of as dual interfaces, common COM enumerator interfaces, relationship details, and ActiveX controls. Readily available with the Visible Studio IDE, ATL can be applied to build one-threaded objects, condominium-model objects, absolutely free-threaded model objects, or both equally absolutely free-threaded and condominium-product objects.

Asio C++ library

The Asio C++ library is utilized for network and small-level I/O programming, featuring a steady asynchronous design. Delivering fundamental building blocks for concurrency, C++ networking, and other sorts of I/O, Asio has been utilized in applications ranging from smartphone applications and game titles to highly interactive web-sites and serious-time transaction systems. Jobs using Asio incorporate the WebSocketPP library and the DDT3 remote debugger for the Lua language. Asio is available as free of charge open source underneath the Improve Software program License, and supported on Linux, Home windows, MacOS, and FreeBSD.


Boost presents free of charge, peer-reviewed transportable C++ resource libraries, accessible from, that operate with the C++ typical library. Increase libraries are intended to be utilized throughout a spectrum of apps. Among the the assortment are libraries for JSON, math, multi-index, file program, and geometry. Increase works on most contemporary working programs such as Linux, Unix, and Windows. Linux and Unix distributions these types of as Debian, Fedora, and NetBSD presently incorporate pre-created Improve deals.


Cinder is an open resource library for “creative coding” in C++. Handy for programs these as audio, computational geometry, graphics, and online video, Cinder supports system-indigenous windowing and function-dealing with, together with I/O abstraction, and has a created-in API for XML and JSON parsing. Created about idiomatic C++ 11 capabilities 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, including matrices, vectors, numerical solvers, and related algorithms. All matrix measurements are supported, from tiny, fastened matrices to arbitrarily large, dense matrices. Algorithms are selected for dependability. All conventional numeric forms are supported. For pace, Eigen capabilities expression templates to intelligently take out temporaries and enable lazy analysis. Freely out there under the Mozilla General public License 2 and downloadable from the Eigen challenge web site, Eigen has been fitted with an API explained by proponents as expressive and clean and natural to C++ programmers. The exam suite for Eigen has been operate from many compilers to guarantee dependability.


FloatX, or Float Extended, is a header-only library for very low-precision, floating stage form emulation. Although natively suitable with C++ compilers, FloatX can be known as by other languages this sort of as Python or Fortran. Floating point types are prolonged outside of the indigenous single and double precision kinds. Template types are provided that make it possible for the user to choose the variety of bits employed for the exponent as perfectly as significant areas of the floating position range. FloatX is dependent on the concept of the FlexFloat library for emulating lessened-precision floating types, but implements a superset of FlexFloat functionality in C and supplies C++ wrappers. FloatX emerged from the Open up Transprecision Computing initiative. It is obtainable free of charge less than the Apache License 2.. 


OpenCV, or Open Supply Computer system Eyesight Library, is a computer vision and machine finding out library composed natively in C++, and offered underneath an Apache 2 license. OpenCV was designed to present common infrastructure for computer vision apps and accelerate the use of device perception in business solutions. Much more than 2,500 optimized algorithms for facial area recognition, object detection, item classification, 3D model extraction, impression lookup, and substantially far more, OpenCV has amassed a person community of more than 47,000 individuals. Readily available from the OpenCV task web page, the library supplies C++, Java, Python, and Matlab interfaces and supports Home windows, Linux, Android, and MacOS. CUDA and OpenCL interfaces are in advancement.

Poco C++ Libraries

Supposed to simplify C++ improvement, the Poco (Transportable Factors) C++ Libraries are cross-platform C++ libraries for constructing Internet and community purposes to run on devices ranging from desktops and servers to cellular and IoT units. The libraries also can be made use of to establish microservices with Relaxation APIs for device studying or facts analytics. The Poco libraries are very similar in notion to the Java Class Library, Microsoft’s .Web Framework, or Apple Cocoa.

Developers can use Poco libraries to develop application servers in C++ that chat to SQL databases, Redis, or MongoDB, or to create software for IoT equipment that chat to cloud again-finishes. Amid the features of the libraries are a cache framework, HTML type managing, an FTP consumer for transferring documents, and an HTTP server and client. The Poco libraries are available cost-free less than the Improve Software package License and downloadable from GitHub


Velox is an embeddable, vectorized execution library for OLAP devices. The library is supposed to optimize knowledge processing systems and question engines. The task was started as an internal engineering challenge at Fb in 2020 and then open sourced. In prevalent usage scenarios, Velox will take a completely optimized query plan as enter and performs the described computation. Elements involve a large-stage typing process, a columnar memory module, purpose offers, and network serializers. Velox is obtainable on GitHub in the Facebook Incubator repo.

Windows Template Library

Initially from Microsoft, the Windows Template Library (WTL) is (given that 2004) an open source library for creating light-weight Home windows programs and UI elements. Positioned as an option to the Microsoft Basis Lessons toolkit, WTL extends ATL and gives a established of classes for controls, dialogs, body home windows, and GDI objects.


Wt is a net GUI library in modern C++ that allows developers to develop interactive website UIs with widgets, with out possessing to publish JavaScript. A server-facet answer, Wt does ask for managing and web site rendering, offering developed-in protection, PDF rendering, a 2D and 3D painting procedure, an item-relational mapping library, a charting library, and an authentication framework. The main library is open source, furnishing a hybrid single-webpage framework that can be deployed on Linux, Unix, or Windows.

Designed by software package engineering business Emweb, Wt is suitable with HTML5 and HTML4 browsers as very well as with basic HTML consumer agents. And Wt can combine with third-bash JavaScript libraries. With Wt, an software is outlined as a hierarchy of widgets—ranging from generic widgets this sort of as thrust buttons to specialized widgets this sort of as an entire site widget. The widget tree is rendered as HTML/JavaScript in the browser. Wt can be downloaded from the undertaking webpage. The two open up source and business usage phrases are available. 


Yocto/GL is a assortment of modest C++17 libraries for building bodily-based graphics algorithms. It is published in a details-oriented style for relieve of growth, and split into modest libraries to make code navigation much easier. Details is stored in very simple structs and accessed with cost-free functions or straight.

Yocto/GL incorporates code from the PCG random range generator, improve hash_merge, and exterior libraries from the public area or that are integrated with their individual licenses. The builders of Yocto/GL like a practical method somewhat than an item-oriented a person, favoring free capabilities to course procedures. Functions and data are outlined in sibling namespaces contained in the yocto namespace.

Yocto/GL is launched under the MIT license and obtainable from GitHub. A C++17 compiler is required.

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