This package provides an implementation of JSON in ANSI C as specified in RFC 8259. Features:

• Fast: can read or write gigabytes per second JSON data on modern CPUs.

• Portable: complies with ANSI C (C89) for cross-platform compatibility.

• Strict: complies with RFC 8259 JSON standard, ensuring strict number format and UTF-8 validation.

• Extendable: offers options to allow comments, trailing commas, NaN/Inf, and custom memory allocator.

• Accuracy: can accurately read and write int64, uint64, and double numbers.

• Flexible: supports unlimited JSON nesting levels, \u0000 characters, and non null-terminated strings.

• Manipulation: supports querying and modifying using JSON Pointer, JSON Patch and JSON Merge Patch.

• Developer-Friendly: easy integration with only one .h and one .c file.

This package provides a C99 preprocessor written in pure Python.

The purpose of libfixposix is to offer replacements for parts of POSIX whose behaviour is inconsistent across *NIX flavours.

This package provides a header-only C library, that implements several sorting algorithms. It is configured using macros and supports user-defined types.

This library provides cross-Platform hardware accelerated CRC32c and CRC32 with fallback to efficient C99 software implementations.

The Permuted Congruential Generator (PCG) extends the Linear Congruential Generator (LCG) with a permutation function to increase output randomness while retaining speed, simplicity, and conciseness.

mpc is a lightweight Parser Combinator library for C. mpc can help with tasks such as:

• Building a new programming language

• Building a new data format

• Parsing an existing programming language

• Parsing an existing data format

• Embedding a Domain Specific Language

• Implementing Greenspun's Tenth Rule.

tinydir is a header-only C wrapper for listing directory contents.

PackCC is a packrat parser generator for the C programming language. Its main features are:

• Generates a parser in C from a grammar described in a PEG.

• Gives your parser great efficiency by packrat parsing.

• Supports direct and indirect left-recursive grammar rules.

The grammar of your parser can be described in a PEG. The PEG is a top-down parsing language, and is similar to the regular-expression grammar. The PEG does not require tokenization to be a separate step, and tokenization rules can be written in the same way as any other grammar rules.

The libwuya library implements data structures such as dictionaries, skip lists, and memory pools.

Grand Central Dispatch (GCD or libdispatch) implements a concurrency model wherein program tasks are divided into work items. These can be run sequentially or in parallel, with optional synchronization in between, and GCD will take care of dispatching tasks to available cores.

The UDUNITS-2 package provides support for units of physical quantities. Its three main components are:

1. udunits2lib, a C library for units of physical quantities;

2. udunits2prog, a utility for obtaining the definition of a unit and for converting numeric values between compatible units; and

3. an extensive database of units.

This library provides a C99 implementation of compression algorithms, currently limited to Huffman encoding and decoding.

TCC, also referred to as "TinyCC", is a small and fast C compiler written in C. It supports ANSI C with GNU and extensions and most of the C99 standard.

This library provides a C99 framework for constructing event-driven, asynchronous network application protocols.

Liblogging is an easy to use library for logging. It offers an enhanced replacement for the syslog() call, but retains its ease of use.

This library is a C99 implementation for AWS event stream encoding, a binary format for bidirectional client-server communication.

This library provides common C99 primitives, configuration, data structures, and error handling for the AWS SDK.

This library provides a C99 client implementation of the Simple Storage Service (S3) protocol for object storage.

simdutf is a C++ library providing Unicode routines (UTF8, UTF16, UTF32). These routines are optimized for many specific architectures using SIMD (Single Instruction, Multiple Data) instructions.

This library provides a C99 implementation of the Message Queuing Telemetry Transport (MQTT) publish-subscribe messaging protocol.

nsync is a C library that exports various synchronization primitives:

1. locks,

2. condition variables,

3. run-once initialization,

4. waitable counter (useful for barriers),

5. waitable bit (useful for cancellation, or other conditions).

Calcurse is a text-based calendar and scheduling application. It helps keep track of events, appointments and everyday tasks. A configurable notification system reminds user of upcoming deadlines, and the curses based interface can be customized to suit user needs. All of the commands are documented within an online help system.

Khal is a standards based console calendar program, able to synchronize with CalDAV servers through vdirsyncer. It includes both a CLI and a TUI named 'ikhal'.