/usr/include/libwildmagic/Wm5Rational.h is in libwildmagic-dev 5.13-1ubuntu3.
This file is owned by root:root, with mode 0o644.
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// Copyright (c) 1998-2014
// Distributed under the Boost Software License, Version 1.0.
// http://www.boost.org/LICENSE_1_0.txt
// http://www.geometrictools.com/License/Boost/LICENSE_1_0.txt
//
// File Version: 5.0.1 (2010/04/14)
#ifndef WM5RATIONAL_H
#define WM5RATIONAL_H
#include "Wm5MathematicsLIB.h"
#include "Wm5Integer.h"
namespace Wm5
{
// N is the number of 32-bit words per Integer numerator/denominator
template <int N>
class Rational
{
public:
// Construction.
Rational (); // default rational is 0/1
Rational (const Rational& rat);
Rational (const Integer<N>& numer);
Rational (const Integer<N>& numer, const Integer<N>& denom);
// Construction converters.
Rational (int numer);
Rational (int numer, int denom);
Rational (float value);
Rational (double value);
// Member access.
inline Integer<N>& Numer ();
inline Integer<N>& Denom ();
inline const Integer<N>& Numer () const;
inline const Integer<N>& Denom () const;
// Assignment.
Rational& operator= (const Rational& rat);
// Comparison.
bool operator== (const Rational& rat) const;
bool operator!= (const Rational& rat) const;
bool operator<= (const Rational& rat) const;
bool operator< (const Rational& rat) const;
bool operator>= (const Rational& rat) const;
bool operator> (const Rational& rat) const;
// Arithmetic operations.
Rational operator+ (const Rational& rat) const;
Rational operator- (const Rational& rat) const;
Rational operator* (const Rational& rat) const;
Rational operator/ (const Rational& rat) const;
Rational operator- () const;
// Arithmetic updates.
Rational& operator+= (const Rational& rat);
Rational& operator-= (const Rational& rat);
Rational& operator*= (const Rational& rat);
Rational& operator/= (const Rational& rat);
// Conversions to float and double.
void ConvertTo (float& value) const;
void ConvertTo (double& value) const;
// Compute the absolute value of the rational number.
Rational Abs () const;
private:
// Cancel any powers of two common to the numerator and
// denominator.
void EliminatePowersOfTwo ();
Integer<N> mNumer, mDenom;
};
template <int N>
Rational<N> operator+ (const Integer<N>& ival, const Rational<N>& rat);
template <int N>
Rational<N> operator- (const Integer<N>& ival, const Rational<N>& rat);
template <int N>
Rational<N> operator* (const Integer<N>& ival, const Rational<N>& rat);
template <int N>
Rational<N> operator/ (const Integer<N>& ival, const Rational<N>& rat);
#include "Wm5Rational.inl"
}
#endif
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