GY-63_MS5611/libraries/Fraction/fraction.h
2023-02-03 13:14:59 +01:00

86 lines
2.2 KiB
C++

#pragma once
//
// FILE: fraction.h
// AUTHOR: Rob Tillaart
// VERSION: 0.1.15
// PURPOSE: Arduino library to implement a Fraction data type
// URL: https://github.com/RobTillaart/Fraction
//
#include "Arduino.h"
#define FRACTION_LIB_VERSION (F("0.1.15"))
class Fraction: public Printable
{
public:
explicit Fraction(double);
explicit Fraction(float);
Fraction(int32_t, int32_t);
// CONSTRUCTORS
explicit Fraction(int32_t p) : n(p), d(1) {}
explicit Fraction(int16_t p) : n(p), d(1) {}
explicit Fraction(int8_t p) : n(p), d(1) {}
explicit Fraction(uint32_t p) : n(p), d(1) {}
explicit Fraction(uint16_t p) : n(p), d(1) {}
explicit Fraction(uint8_t p) : n(p), d(1) {}
Fraction(const Fraction &f) : n(f.n), d(f.d) {}
size_t printTo(Print& p) const;
// EQUALITIES
bool operator == (const Fraction&);
// bool operator == (const float&);
bool operator != (const Fraction&);
bool operator > (const Fraction&);
bool operator >= (const Fraction&);
bool operator < (const Fraction&);
bool operator <= (const Fraction&);
// NEGATE
Fraction operator - ();
// BASIC MATH
Fraction operator + (const Fraction&);
Fraction operator - (const Fraction&);
Fraction operator * (const Fraction&);
Fraction operator / (const Fraction&);
Fraction& operator += (const Fraction&);
Fraction& operator -= (const Fraction&);
Fraction& operator *= (const Fraction&);
Fraction& operator /= (const Fraction&);
// CONVERSION
double toDouble();
float toFloat();
bool isProper(); // abs(f) < 1
float toAngle();
int32_t nominator();
int32_t denominator();
// MISCELLANEOUS (static)
static Fraction mediant(const Fraction&, const Fraction&);
static Fraction middle(const Fraction&, const Fraction&);
// approximate a fraction with defined denominator
static Fraction setDenominator(const Fraction&, uint16_t);
protected:
void split(float);
void simplify();
void fractionize(float);
int32_t gcd(int32_t, int32_t);
int32_t n;
int32_t d;
};
// -- END OF FILE --