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Code libraries to write programs to accomplish specific tasks. Please use this tag together with one for the associated programming language.

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Fast socket networking library for C++

Can somebody advice fast client-server C++ TCP(or reliable UDP) networking library? Maybe like RakNet.
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Looking for an in-app in-memory filesystem in C/C++

I'm looking for an in-memory in-app filesystem that I can use as a library from a C program. Ideally should be POSIX compatible. What I have found so far: Zbox here is a possible solution for what I'...
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Radar overlay for map

I plan an app which will plot aircraft, maybe on an OSM Leaflet map, maybe on Google maps. I may implement it in Flutter/Dart AngularJs, or even plain old JS. I don't have a strong preference, and ...
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Image Repository for company to search, manage and download images

Our Digital and Marketing team is planning to buy/collect images from various sources like shutterstock and google. We have some images that we made ourselves too. We want a common repository where ...
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PDF parsing library for C++/Windows

I need to create a C++ program which parse info from a PDF file. So, I guess, the first step is to find a good, easy-to-use library. I've already searched on google, but I only found stuff for Linux ...
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Distances on Earth: which python package is closest to geographic measurements?

Context In the answers of the post How to use GeoSeries.distance to get the right answer, the distance between two points on Earth is computed with two packages: geopandas : 479.450134 meters ...
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Desktop GIS library

I am looking of a free library to develop a simple desktop C# application with GIS support. I have checked the following link but it seems most of the solutions are web-based. Any suggestions? https://...
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Portable networking library written in C that is synchronous

I am looking for a library for a portable (abstract differences between various Operating Systems) networking (for doing network stuff like BSD sockets) that is synchronous. I found this https://...
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Is there a Java library similar to Rust's tracing crate for dealing with Concurrent code?

I had been thinking a bit about how this could be done.. Some thoughts I had were AOP and JMX.. But are there any libraries that could do something similar to the Rust crate tracing Particularly ...
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library/framework to read/write files asynchronously?

As title, I'm not sure some library like boost.asio can help me write files asynchronously. Because library like boost.asio claim they are good to async in network. I have a program which will always ...
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Check/validate PDF files conformance to standards like PDF/A or PDF/UA

There are various PDF standards: PDF/A: PDF/A-1a, PDF/A-2a or PDF/A-3a PDF/UA potentially more I want to check with Python if a given PDF file follows any of those. I have seen veraPDF which seems ...
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Backported standard C++ library constructs for older standard versions

The C++ standard library has gained a lot of useful functions, data structures and other constructs since C++11; and interestingly enough - many if not most of these can actually be implemented in C++...
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What library do I need to download files from my Galaxy Note 10 to my PC via C#?

The MediaDevices package from NuGet is supposed to do this, but it doesn't. The DownloadFiles() function throws "Not Implemented" exceptions. So, what is there that can do this? This is ...
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Is there an API for Lightroom that will let me import photos into my catalog?

Lightroom Classic, the current desktop-based version of Lightroom, is supposed to be able to automatically import photos from Lightroom Mobile installed on my phone. Mine has stopped doing that. Many ...
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Angular library for dynamic 3D house modeling

I need a library that I can use with Angular (desirably open source) in order to give the user the ability to modify a house design. If there is not such library maybe some software that I can embed ...
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Micali-Vazirani algorithm implementation in python library

I'm looking for a library that implements the Micali-Vazirani algorithm (1980) for maximum cardinality matching in general graphs. I find multiple implementations of the slightly older blossom ...
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Similar Java Library like Jpedal

Please recommend some other libraries or solutions like jpedal library, I use it for printing pdf from java but Jpedal is not open source and they only allow for 14 days trial, being a student I ...
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JavaScript HTML -> HTML transformer (templating engine)

I need an open source JavaScript templating engine that takes a HTML file and a "template" and produces a new HTML file (for example, the original HTML with added header and sidebar and some ...
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Looking for a concurrent data structure checker

While reading “C++ Concurrency in Action 2nd Edition” by Anthony Williams, I stumbled across a sentence about an automatic tool that verifies concurrent data structures. He said that such tools exist, ...
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C++ library for 3D curve fitting

I have a file holding a lot of points in R3 that approximately forms a knot. I know basic programming in Python and C++, but I am not sure how I would go about writing a program that could approximate ...
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Tool to reduce size of frozen Python app by programmatically removing (or excluding) unnecessary code

I suspect this question may be applicable to other Python packages and other methods of freezing, but in my particular case I'm using PyInstaller to freeze an application built on PySide2. (I've also ...
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Unit test framework/harness where tested function input can come from files

There are a bunch of unit test frameworks for C++; see: C++ unit testing framework A modern-C++-oriented testing framework for C++ code here on the site. However, none of them - to my knowledge - ...
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C++ library for parsing unspecified command-line options

I'm looking for a C++ library which parses the command line, but - doesn't know anything about what the application's command line is actually supposed to be. It therefore uses only common-convention ...
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Library to generate Version 1 UUIDs to be called from Java

Version 1 UUIDs represent a point in space and in time. The "space" part is the MAC address taken from the networking port of the computer to uniquely identify where the id was generated (...
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Relating VBA to Python

I'm new to python. The last programming language learnt is VBA. I know that with python you can import libraries or module such as the requests, math, and selenium. VBA has a tool called the object ...
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Replayer of chess moves in PGN or openings

I programmed a replayer of chess moves from Portable Game Notation, such as Milman v Fang, 2005, with FlaskChess for the server and python-chess for the logic (thanks to Python library to process ...
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Python library to process Portable Game Notation in chess

I want to replay chess games in Portable Game Notation, which describes moves such as the King's Knight opening with 1. e4 e5 2. Nf3 I adapted FlaskChess in Python for this purpose and it can take a ...
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Which C++ library do you recommend for polynomial algebra?

I am hoping to find a mathematical library that contains functions for algebraic operations on polynomials, even if they are primarily named for other operations, such as deconvolution. I would rather ...
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Java library for ReCaptcha that does not utilize Google ReCaptcha

I am developing a ReCaptcha for a site. Because of client's requirement, I cannot use Google ReCaptcha and anything in the cloud. Basically, I need a library that can be installed on my local machine, ...
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Java HTTP(S) proxy server library that supports http/2, websockets and upstream proxies

I'm looking for a Java library to create featureless http/https proxy servers that supports http/2, upstream proxies and websockets. I've already looked into BrowserUp-Proxy and (even if it's a bit of ...
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Library of C++ container facade classes

Suppose you... You have a function f(std::size_t) -> T and a value n, and want to treat the image f({0...n}) as an array or a const std::vector. You have an std::vector<T> or std::array<T&...
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Live speech to phoneme (Lips sync)

I am looking for a very fast and efficient library to transform live speech into phoneme. The main objective is to create a live lips sync. I don't need to catch sentences or keywords, just phonemes....
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Very simple and fast CAS in C(++)

I need to do a large amount of simple symbolic computations. I have already tried SymPy, which is too slow, GiNaC (seems to be unable to simplify), SymbolicC++ 3 (I don't remember why this didn't work....
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A library of constexpr C++11 arrays, maps, tuples etc

I need to do some constexpr work - in C++11. The standard library for that version of the language has most constructs with non-constexpr methods (either because they just weren't marked or because ...
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C# or Python: “packed circles” visualization library

On some sites, I remember seeing an applet, that visualizes some data as packed circles of unequal size (an example below). I'm pretty sure it's done in real-time, because I remember the circles ...
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Java DOS-like UI library

I would like to write a really simple and rudimentary UI in Java that would run on a Windows machine in a very similar fashion like it runs in a terminal window. Basically I need to put a colored ...
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A workflow management to integrate into my own software

I have a specific request from a client to provide a workflow management / business process module that mixes human and automated tasks to integrate with our own existing web-based software. So the ...
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Is there any c/c++ library for ecies using Curve25519?

I found a lot of libraries that offer ECDH and ECDSA for Curve25519 but none supported ECIES for Curve25519, for example, crypto++ library. I know ECIES uses ECDH. I don't know these libraries don't ...
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Looking for a simple package to compute poker equities

This post is hidden. It was deleted 2 days ago by Jesper Juhl, greg-449, Ben Bolker. Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. We don’t ...
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Is there a WPF library with chord-graphs?

I am building an application in WPF and I would like to implement a chord graph (like these https://www.data-to-viz.com/graph/chord_files/figure-html/unnamed-chunk-1-1.png). Is there a library (NUGET ...
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C++ library for the 3-dimensional assignment problem

The 3-dimensional assignment problem is an extension of the Assignment Problem. Given 3 groups of n people we want to split them into n triplets such that each possible triplet has a non-negative ...
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Best framework for blog management system in Vue

I have a task to develop a blogs management system: this system included two role (administrators and readers). administrators can access the admin interface to (create, edit and delete blogs). ...
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Android libraries for Previewing Office document file formats

I'm looking for a library that I can use to preview doc, docx, xls, xlsx, ppt, pptx etc. file formats inside my Android application. Using intents is unsuitable for my particular application and it ...
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Using heatmap view in custom images JS

I'm making a web with angular 9, taking data about pressure sensors in the feet and I would like to have a visual way to represent the data. I saw some libraries that handle heatmaps like D3.js but I ...
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Library for handling Abstract Syntax Trees efficiently

I'm looking for a C/C++ library for handling Abstract Syntax Trees that can be generated after recognizing a language in Antlr or yacc/bison. Given that in software or query optimization you need to ...
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Is there a Java library to implement fuzzy expert systems?

I am programming a Java application using Spring MVC that includes a recommendation module based on an expert system. I would like to know if there is a Java library that allows building expert ...
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Graph Theory Library For C++ Other Than Boost.Graph

I am particularly interested in very basic features: Graph representations: adjacency matrix, incidence matrix, adjacency list Basic traversal algorithms: BFS, DFS My choosing criteria: As minimal ...
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Javascript chart library with noscript fallback support

What are some libraries for generating dynamic javascript charts that also provide fallback support to users without JS? I'm looking at adding graphs to a website. I really like the way chart.js ...
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Java math library with entropy calculation function

I am looking for an open source Java math/linear algebra library with a function to calculate entropy of 2D arrays. The algorithm should be able to calculate entropy of continuous values. Nice to ...
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Implementations of chameleon hash functions

For a research project we want to build a proof of concept of a redactable blockchain that employs chameleon hashing (cf. https://eprint.iacr.org/2016/757.pdf). We are looking now for implementations ...

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