Cat: C++14/17 functional library
What is cat?
Cat is a C++14/17 functional library inspired by category theory and Haskell language. The purpose of cat is to provide utility functions and type classes to enable the functional programming paradigm in C++.
The purpose of Cat library is twofold:
- to provide utility classes and functions that enable the functional programming paradigm in C++.
- to implement an extensible framework of type classes to attain a better reusability of code through the principles of category theory.
The Cat library:
is lightweight. Each function and object shipped with the library takes advantage of modern C++ features, such as
constexprconstructs, movability, perfect forwarding, etc.
is written in portable C++14/17 without macro black-magic, whereas template meta-programming is restricted only to the implementation of type traits.
implements type traits tailored for generic and functional programming (e.g.
is_callableto mention a few).
provides utilities, like callable wrappers, which enable functional composition and currying on-top-of any kind of callable types (including
std::bindexpressions and generic lambdas).
provides functions that operate on
std::tupleand generic containers.
provides utilities that enable perfect forwarding from L/R value containers by means of
includes an extensible framework for building type classes and provides the implementation of the following ones:
includes instances of standard C++14/17 and Technical Specification (TS) containers/types for the above-mentioned type classes.
At the present moment the Cat library is tested under Linux and MacOS with both glibcxx and libc++ library and with the following compilers:
- clang 3.6
- clang 6.0
The Cat library takes inspiration from the following projects: