This repository is still incomplete!

Introduction

unitpp is a easy to use C++ meta-library to add units into the language. It was written as a hobby project in order to improve metaprogramming-skills.

Besides compile time, there should be no overhead if optimized.

How-To

Quick Start

using namespace me;

constexpr auto impulse = 5_m * kg / s;
auto velocity = cm / ms;

std::cout << "Enter impulse (in " << info(impulse) << "): ";
std::cin >> impulse;

std::cout << "\nEnergy"
          << info<Joule<1>>(impulse * velocity) << std::endl;

auto energy = impulse * velocity | (opt::unscale | opt::combine | opt::basify);
static_assert(std::is_same_v<decltype(energy), decltype(kg * m<2> / s<2>)>,
              "Energy simplified correctly");

Defining own measures

There are several types of so called measures:

1. Single - This represents a base unit, something like Second or Metre
2. Compound - This is a collection of base units. More on that later
3. Scaled - This is basically a scaled Single unit

Single

Compound

Scaled

Dependencies

unitpp has no dependencies at all, besides C++17.

Installation

Add everything contained in the include/ directory to your project and you are ready to go!

Free Software!