ada
- Ebuilds: 2, Stable: 3.4.2, 3.3.0, Testing: 3.4.2 Description: WHATWG-compliant and fast URL parser written in modern C++
Homepage:https://github.com/ada-url/ada License: Apache-2.0 MIT
aixlog
- Ebuilds: 1, Stable: 1.5.0-r1, Testing: 1.5.0-r1 Description: Header-only C++ logging library
Homepage:https://github.com/badaix/aixlog License: MIT
cctz
- Ebuilds: 1, Stable: 2.5, Testing: 2.5 Description: C++ library for dealing with time zones and time conversion
Homepage:https://github.com/google/cctz License: Apache-2.0
cld3
- Ebuilds: 1, Stable: 3.0.13_p20220331, Testing: 3.0.13_p20220331 Description: Neural network model for language identification
Homepage:https://github.com/google/cld3 License: Apache-2.0
clucene
- Ebuilds: 3, Stable: 2.3.3.4-r11, Testing: 2.3.3.4-r11 Description: High-performance, full-featured text search engine based off of lucene in C++
Homepage:https://clucene.sourceforge.net License: || ( Apache-2.0 LGPL-2.1 )
cppdap
- Ebuilds: 2, Stable: 0_pre20240802 Description: C++ library for the Debug Adapter Protocol
Homepage:https://github.com/google/cppdap License: Apache-2.0
cppgir
- Ebuilds: 3, Stable: 2.0_p20250629, Testing: 2.0_p20260226 Description: GObject-Introspection C++ binding wrapper generator
Homepage:https://gitlab.com/mnauw/cppgir License: MIT
cpptoml
- Ebuilds: 1, Stable: 0.1.1-r1, Testing: 0.1.1-r1 Description:
A header-only library for parsing TOML configuration files.
Targets: TOML v0.5.0 as of August 2018.
This includes support for the new DateTime format, inline tables, multi-line basic and raw strings, digit separators, hexadecimal integers, octal integers, binary integers, and float special values.
Homepage:https://github.com/skystrife/cpptoml License: MIT
eigen
- Ebuilds: 3, Stable: 3.4.0-r3, Testing: 9999, 3.4.9999 Description:
Eigen is a lightweight C++ template library for vector and matrix math,
a.k.a. linear algebra. Unlike most other linear algebra libraries, Eigen
focuses on the simple mathematical needs of applications: games and other
OpenGL apps, spreadsheets and other office apps, etc. Eigen is dedicated to
providing optimal speed with GCC.
Homepage:https://eigen.tuxfamily.org/index.php?title=Main_Page
elfio
- Ebuilds: 1, Testing: 3.12 Description: ELF reader/producer header-only C++ library
Homepage:https://github.com/serge1/ELFIO License: MIT
expected
- Ebuilds: 2, Stable: 1.1.0, Testing: 1.3.1, 1.1.0 Description: Single header implementation of std::expected with functional-style extensions
Homepage:https://github.com/TartanLlama/expected License: CC0-1.0
fast_float
- Ebuilds: 1, Stable: 8.0.2, Testing: 8.0.2 Description: Fast and exact implementation of the C++ from_chars functions for number types
Homepage:https://github.com/fastfloat/fast_float License: || ( Apache-2.0 Boost-1.0 MIT )
fb303
- Ebuilds: 2, Stable: 2025.04.14.00, Testing: 2025.04.14.00 Description: Core set of Thrift functions querying stats and other information from a service
Homepage:https://github.com/facebook/fb303 License: Apache-2.0
fizz
- Ebuilds: 2, Stable: 2025.04.14.00, Testing: 2025.04.14.00 Description: C++14 implementation of the TLS-1.3 standard
Homepage:https://github.com/facebookincubator/fizz License: BSD
folly
- Ebuilds: 4, Stable: 2025.04.14.00-r2, Testing: 2025.04.14.00-r2 Description: An open-source C++ library developed and used at Facebook
Homepage:https://github.com/facebook/folly License: Apache-2.0
glaze
- Ebuilds: 3, Stable: 5.5.4, Testing: 6.5.1 Description:
Yet another library for C++ for parsing JSON. Uses SIMD as well. In some benchmarks is better than simdjson.
Homepage:https://github.com/stephenberry/glaze License: MIT
gpgmepp
- Ebuilds: 1, Stable: 2.0.0-r1, Testing: 2.0.0-r1 Description: GnuPG Made Easy is a library for making GnuPG easier to use (C++ bindings)
Homepage:https://www.gnupg.org/related_software/gpgme License: LGPL-2+ test? ( GPL-2 GPL-2+ LGPL-2.1+ )
highway
- Ebuilds: 3, Stable: 1.3.0, Testing: 9999 Description:
Highway is a C++ library for SIMD (Single Instruction, Multiple Data),
i.e. applying the same operation to multiple 'lanes' using a single CPU instruction.
Homepage:https://github.com/google/highway
htmlcxx
- Ebuilds: 1, Testing: 0.87 Description: A simple non-validating CSS 1 and HTML parser for C++
Homepage:http://htmlcxx.sourceforge.net/ License: LGPL-2
mm-common
- Ebuilds: 2, Stable: 1.0.7, Testing: 1.0.7 Description: Build infrastructure and utilities for GNOME C++ bindings
Homepage:https://gtkmm.gnome.org/en/index.html License: GPL-2
ms-gsl
- Ebuilds: 3, Stable: 4.1.0, Testing: 4.1.0 Description: Guideline Support Library implementation by Microsoft
Homepage:https://github.com/Microsoft/GSL License: MIT
muParser
- Ebuilds: 2, Stable: 2.3.5, Testing: 2.3.5 Description:
muParser is a C++ library for mathematical expression parsing.
It is based on transforming an expression into a bytecode and
precalculating constant parts of it.
Homepage:https://beltoforion.de/en/muparser/ License: MIT
mvfst
- Ebuilds: 3, Stable: 2025.04.14.00-r1, Testing: 2025.04.14.00-r1 Description: An implementation of the QUIC transport protocol
Homepage:https://github.com/facebook/mvfst License: MIT
notcurses
- Ebuilds: 3, Testing: 3.0.8-r1 Description:
Notcurses facilitates the creation of modern TUI programs,
making full use of Unicode and 24-bit TrueColor. It presents
an API similar to that of Curses, and rides atop Terminfo.
Homepage:https://notcurses.com License: Apache-2.0
popl
- Ebuilds: 1, Stable: 1.2.0-r1, Testing: 1.2.0-r1 Description: Header-only C++ program options parser library
Homepage:https://github.com/badaix/popl License: MIT
prometheus-cpp
- Ebuilds: 1, Stable: 1.2.4, Testing: 1.2.4 Description:
This library aims to enable Metrics-Driven Development for C++ services.
It implements the Prometheus Data Model, a powerful abstraction on which
to collect and expose metrics. We offer the possibility for metrics to
be collected by Prometheus, but other push/pull collections can be added
as plugins.
Homepage:https://github.com/jupp0r/prometheus-cpp License: MIT
pystring
- Ebuilds: 2, Stable: 1.1.4-r2, Testing: 1.1.4-r2 Description: C++ functions matching the interface and behavior of python string methods
Homepage:https://github.com/imageworks/pystring
range-v3
- Ebuilds: 1, Stable: 0.12.0-r1, Testing: 0.12.0-r1 Description:
Ranges are an extension of the Standard Template Library that makes its
iterators and algorithms more powerful by making them composable. Unlike
other range-like solutions which seek to do away with iterators, in
range-v3 ranges are an abstration layer on top of iterators.
Homepage:https://github.com/ericniebler/range-v3 License: Boost-1.0
scitokens-cpp
- Ebuilds: 8, Stable: 1.3.0, Testing: 1.4.1 Description:
SciTokens provide a token format for distributed authorization. The tokens are
self-describing, can be verified in a distributed fashion (no need to contact
the issuer to determine if the token is valid). This is convenient for a
federated environment where several otherwise-independent storage endpoints
want to delegate trust for an issuer for managing a storage allocation.
Homepage:https://scitokens.org/ License: Apache-2.0
simdutf
- Ebuilds: 3, Stable: 7.7.1, Testing: 7.7.1, 7.7.0 Description: Unicode validation and transcoding at billions of characters per second
Homepage:https://simdutf.github.io/simdutf/ License: || ( Apache-2.0 MIT )
taskflow
- Ebuilds: 5, Stable: 3.10.0, Testing: 9999 Description:
Taskflow is faster, more expressive, and easier for drop-in
integration than many of existing task programming frameworks in
handling complex parallel workloads.
Homepage:https://taskflow.github.io
tbb
- Ebuilds: 8, Stable: 2022.1.0, Testing: 2022.3.0, 2021.9.0 Description:
The Intel Threading Building Blocks is a library that helps you
leverage multi-core processor performance without having to be a
threading expert. It represents a higher-level, task-based
parallelism that abstracts platform details and threading mechanism
for performance and scalability.
Homepage:https://github.com/uxlfoundation/oneTBB License: Apache-2.0
tclap
- Ebuilds: 1, Stable: 1.2.5, Testing: 1.2.5 Description: Simple templatized C++ library for parsing command line arguments
Homepage:http://tclap.sourceforge.net License: MIT
tree
- Ebuilds: 2, Stable: 3.18, Testing: 3.18-r1 Description:
The tree.hh library for C++ provides an STL-like container class for
n-ary trees, templated over the data stored at the nodes. Various
types of iterators are provided (post-order, pre-order, and
others). Where possible the access methods are compatible with the
STL or alternative algorithms are available.
Homepage:https://github.com/kpeeters/tree.hh License: || ( GPL-2 GPL-3 )
ut2-glaze
- Ebuilds: 1, Stable: 0.0.4 Description:
Yet another stripped down fork of boost-ext ut2 (! not ut !).
ut2 is a library for testing using `constexpr` extensively in comparison to boost-ext/ut.
Homepage:https://github.com/openalgz/ut License: MIT
wangle
- Ebuilds: 2, Stable: 2025.04.14.00, Testing: 2025.04.14.00 Description: A framework providing common abstractions for building services
Homepage:https://github.com/facebook/wangle License: Apache-2.0