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

minIni is a portable and configurable library for reading and writing .ini files.

The unifdef utility selectively processes conditional C preprocessor #if and #ifdef directives. It removes from a file both the directives and the additional text that they delimit, while otherwise leaving the file alone. It can be useful for avoiding distractions when studying code that uses #ifdef heavily for portability.

A simple one header solution to supporting UTF-8 strings in C and C++. The functions it provides are like those from the C header string.h, but with a utf8* prefix instead of the str* prefix.

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

This C library contains some essential string manipulation functions and more, like escaping special characters.

This C library provides high-level arguments parsing solutions inspired by Python's argparse module.

This library provides a C99 wrapper for hash, HMAC, and ECC cryptographic primitives for the AWS SDK.

This package provides support macros and auxiliary functions around the functionality of common C standard libraries. This includes helpers for the ISO C Standard Library, but also other common specifications like POSIX or common extended features of widespread compilers like gcc and clang.

The goal of this project is to provide a tiny library that would facilitate the common operations with sizes in bytes. Many projects need to work with sizes in bytes (be it sizes of storage space, memory...) and all of them need to deal with the same issues like:

• How to get a human-readable string for the given size?

• How to store the given size so that no significant information is lost?

• If we store the size in bytes, what if the given size gets over the MAXUINT64 value?

• How to interpret sizes entered by users according to their locale and typing conventions?

• How to deal with the decimal/binary units (MB versus MiB) ambiguity?

libbytesize offers a generally usable solution that could be used by every project that needs to deal with sizes in bytes. It is written in the C language with thin bindings for other languages.

The c-siphash project is a standalone implementation of SipHash in Standard ISO-C11. It provides a streaming-capable API to compute data hashes according to the SipHash algorithm. For API documentation, see the c-siphash.h header file, as well as the docbook comments for each function.

PCC is a portable C compiler. The project goal is to write a C99 compiler while still keeping it small, simple, fast and understandable.

This package provides a header-only unit testing library for C/C++.

This is a C library (with some C++ bindings available) that provides data structures and functions commonly needed, such as maps, deques, linked lists, string formatting and autoresizing, option and config file parsing, type checking casts and more.

This package provides a C99 preprocessor written in pure Python.

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

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

libfastjson is a fork from json-c aiming to provide: a small library with essential JSON handling functions, sufficiently good JSON support (not 100% standards compliant), and very fast processing.

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).

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

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.

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

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.

ISPC is a compiler for a variant of the C programming language, with extensions for single program, multiple data programming. Under the SPMD model, the programmer writes a program that generally appears to be a regular serial program, though the execution model is actually that a number of program instances execute in parallel on the hardware.