libfun

Crazy Eddie's functional C++ library

This is mostly serving as a basis for my own experimentation with functional programming in C++. Use at your own risk.

#concepts

I'm following much of the Haskell language version of functional programming with a few twists to make it more C++ like--for example overloading and functions with an undefined arity.

function

• operator()
• operator(...)
• operator(tuple)
• eval(...)
• value()

variadic function

Variadic functions ALWAYS return functions. When you're at a terminal evaluation point using operator() you must call value() to retrieve the result. The eval() member can be used to evaluate with operator() and retrieve the value. This may additionally avoid creating copies when the function parameters are const&.

data variables

All data variables are also functions.

• operator() - returns *this
• value() - returns *this

type constructors

• naming - start with capital letters. Example: List

operators

Fundational

• add
• sub
• mul
• div
• eq