cpp-httplib is a C++11 single-file cross platform blocking HTTP/HTTPS library, easy to setup. It can also be used as a single-header library.

This package provides a header-only C++ library to parse command line options. It supports the short and long option formats of getopt(), getopt_long() and getopt_long_only().

mcpp is Matsui's CPP implementation precisely conformed to standards.

c2ffi is a tool for extracting definitions from C, C++, and Objective C headers for use with foreign function call interfaces. It uses the Clang/LLVM infrastructure to extract the data, and emits it in various formats, including json.

The AWS Common Runtime (CRT) library provides a C++ wrapper implementation for the following AWS C libraries: aws-c-auth, aws-c-cal, aws-c-common, aws-c-compression, aws-c-event-stream, aws-c-http, aws-c-io, aws-c-mqtt, aws-checksums, and s2n.

Kokkos Core implements a programming model in C++ for writing performance portable applications targeting all major HPC platforms. For that purpose it provides abstractions for both parallel execution of code and data management. Kokkos is designed to target complex node architectures with N-level memory hierarchies and multiple types of execution resources.

This package provides a header-only single-file std::filesystem compatible helper library, based on the C++17 and C++20 specs, but implemented for C++11, C++14, C++17 or C++20.

This package provides simple property input/output utilities for C++.

This package provides a single-header C++11 library for computing Fast Fourier transformations. It supports multidimensional arrays, different floating point sizes and complex transformations.

This package provides a simple gettext replacement that works directly on .po files and doesn't need .mo files pre-generated.

nlohmann::json is a C++ JSON library that provides intuitive syntax and trivial integration.

The AWS SDK for C++ provides a C++11 interface to the AWS API. AWS provides on-demand computing infrastructure and software services including database, analytic, and machine learning technologies.

SysCmdLine is a C++ command line parser that is inspired by QCommandLineParser from Qt and System.CommandLine from C#. It has features such as:

• Support sub-commands

• Support case-insensitive parsing

• Support global options

• Support mutually exclusive options

• Support short options and group flags

• Support help text customization

• Support localization

• Simple tips for typo correction

• Highly configurable

• Friendly interface

This library provides a header-only unordered set and map data structures for C++.

IceCream-Cpp is a C++ library for printf debugging. It is inspired by the Python library of the same name.

RapidFuzz is a fast string matching library for Python and C++, which is using the string similarity calculations from FuzzyWuzzy.

Abseil is a collection of C++ library code designed to augment the C++ standard library. The Abseil library code is collected from Google's C++ code base.

Optional lite is a single-file header-only library to represent optional (nullable) objects and pass them by value. The library aims to provide a C++17-like optional for use with C++98 and later. If available, std::optional is used.

libcppgenerate is a library for generating C++ code from C++.

This package provides a collection of C++ libraries intended to be useful for building network-based applications.

This package provides the following implementations of std::function:

• copyable fu2::function

• move-only fu2::unique_function (capable of holding move only types)

• non-owning fu2::function_view (capable of referencing callables in a non owning way)

This package provides a fast multi-producer, multi-consumer lock-free concurrent queue for C++11.

sfl-library provides many STL-like (Standard Template Library) containers including vectors, associative containers, and unordered containers based on hash tables. These containers are designed for C++11 and C++20 constant expression usage.

libconfini is an INI file parser library written in C. It focuses on standardization and parsing exactness and is at ease with almost every type of file containing key/value pairs.