C++ Show and Tell - December 2022

• Kalman

  12 36 9.0 C++

  Kalman Filter (by FrancoisCarouge)

I released a first version of a generic Kalman filter.

• SpeciaLUT

  3 26 3.4 C++

  Runtime choosing of template specializations using compile-time lookup-tables. Compile all states of a template function, but execute the optimal one at runtime.

I made SpeciaLUT to convert bool/enum runtime tests to compile-time conditionals — by compiling all branching combinations in hot functions and saving them in a lookup-table, so the optimal one can be called at runtime. Reason: as an HPC consultant I encountered many codes that grew without good architecture, in which features would just be added and branching would propagate through all levels. This yields 10% to 50% performance increase in such codes.

• InfluxDB

  www.influxdata.com featured

  Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

  

• rapidobj

  5 161 5.9 C++

  A fast, header-only, C++17 library for parsing Wavefront .obj files.

I wrote a rapidobj library for parsing Wavefront .obj files. It's an old text format for 3D data. This library was optimised to quickly process large files (see benchmarks); it can parse millions and even tens of millions of triangles per second.

• AutoGeodesics

  3 8 10.0 C++

  Easily integrate the geodesics equation using automatic differentiation.

• LinearAlgebra

  2 4 6.5 C++

  C++20 Linear Algebra header only library, with lots of support for complex operations.

• shadow

  1 0 10.0 C++

  Simple explicit reflection library (by bergesenha)

I wrote this reflection library several years ago to teach myself some template metaprogramming. It was originally written for C++11, but upgraded to C++14 after a while to make use of some of the improvements. It's been stale ever since, but I sometimes refer back to it when I need subsets of the functionality and need a refresher on how to write certain functionality even though I would probably have done things very different today :) https://github.com/bergesenha/shadow

• teylogger

  8 10 10.0 C++

  ⌨️ - The Teylogger tiny and complete keylogger for Windows

• SaaSHub

  www.saashub.com featured

  SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

  

• Vcpkg

  147 21,652 10.0 CMake

  C++ Library Manager for Windows, Linux, and MacOS

  

Over the past few weeks, I have been working on a new vcpkg online explorer: https://vcpkg.link

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