This is a Captcha gem for Rails Applications. It drawing captcha image with C code so it no dependencies.

Confium provides threshold cryptography for Ruby: FROST / CMP20 / GG18 signing sessions, X.509 certificate issuance (CNML-ready), composite PQ-migration signatures, and transparency-log anchoring. Powered by a Rust native extension (magnus + rb_sys) — no separate C ABI to install.

Provides a class (CongruenceSolver) for finding the modular zeros of a polynomial (given the coefficients and modulus) and a binary (csolve) to to solve your congruences at the command line.

A string hash function that returns the same value each time it's called.

A Flex/Bison based JSON parser

Simplification of convolver gem, FFTW removed, suitable only for smaller kernels. Convolver gem author is Neil Slater, slobo777@gmail.com, https://github.com/neilslater

Utilities for working with COBOL copybooks and file conversion.

CorFu, the Coderunner/Trinity Fusion Optimisation Framework allows the optimisation of fusion performance using first principles flux calculations via Trinity.

Compatibility implementation of Coverage.peek_result

Uses git and ruby coverage information to determine which tests to run from your test suite

cp2112 is a Ruby wrapper for shared library of CP2112, a USB(HID) i2c/SMBus bridge device, which is distributed by Silicon Laboratories.

see https://github.com/etm/opcua-smart

Get CPU time.

Very fast CRC32 calculation based on Intel's slicing-by-8 algorithm.

This gem contains C extension for calculating CRC32

Credo detector

A Ruby extension to interface with CRF++, the Conditional Random Fields library written in C++. You need to install libcrfpp to use this gem.

A libcriu wrapper for CRuby

CAST parses C code into an abstract syntax tree (AST), lets you break it, then vomit it out as code. The parser does C99. This fork supports Ruby 1.9.3, gemspec, and requires Hoe. The Rubyforge page above is documentation for the original version, but most things should be the same.

Ruby support for CTP