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/***************************************************************************************
* This file is dedicated to the public domain. If your jurisdiction requires a *
* specific license: *
* *
* Copyright (c) Stephen McDowell, 2017-2024 *
* License: CC0 1.0 Universal *
* License Text: https://creativecommons.org/publicdomain/zero/1.0/legalcode *
**************************************************************************************/
#pragma once
#include <memory>
#include <string>
/// A namespace to contain everything in this test project ;)
namespace pimpl {
/// The interface base class for all planets.
class Planet {
public:
/// The mass of the planet in kilograms.
virtual double mass() const = 0;
/// The mean radius of the planet in kilometers.
virtual double radius() const = 0;
/// The orbital eccentricity of the planet.
virtual double eccentricity() const = 0;
/// The gravity on the planet surface in meters per second squared.
virtual double surface_gravity() const = 0;
/// A string description of the planet.
virtual std::string describe() const = 0;
};
}
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