/*
- rational.hh -- declare rational helpers
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the Flower Library
+ Copyright (C) 1997--2014 Han-Wen Nienhuys <hanwen@xs4all.nl>
- (c) 1997--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ LilyPond is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ LilyPond is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef RATIONAL_HH
#define RATIONAL_HH
+#include "flower-proto.hh"
#include "std-string.hh"
-
-#include "std-string.hh"
+#include <limits.h>
/**
Rational numbers. Included is support for + and - infinity.
0 if *this is zero.
*/
int sign_;
- unsigned int num_, den_;
+ U64 num_, den_;
void normalize ();
void copy (Rational const &);
void set_infinite (int sign);
bool is_infinity () const;
void invert ();
- int numerator () const { return sign_ * num_; }
- int denominator () const { return den_; }
- int num () const { return numerator (); }
- int den () const { return denominator (); }
+ I64 numerator () const { return sign_ * num_; }
+ I64 denominator () const { return den_; }
+ I64 num () const { return numerator (); }
+ I64 den () const { return denominator (); }
Rational trunc_rat () const;
Rational div_rat (Rational) const;
void negate ();
int to_int () const;
- operator double () const;
+ operator double () const { return to_double (); }
+ double to_double () const;
Rational operator - () const;
/**
Initialize to 0.
*/
Rational ();
- Rational (int, int);
- Rational (double);
+ Rational (int);
+ Rational (I64);
+ Rational (U64);
+ explicit Rational (I64, I64);
+ explicit Rational (double);
Rational (Rational const &r) { copy (r);}
Rational &operator = (Rational const &r)
{
- copy (r); return *this;
+ copy (r);
+ return *this;
}
Rational &operator *= (Rational);
#include "arithmetic-operator.hh"
-IMPLEMENT_ARITHMETIC_OPERATOR (Rational, /);
+IMPLEMENT_ARITHMETIC_OPERATOR (Rational, / );
IMPLEMENT_ARITHMETIC_OPERATOR (Rational, +);
IMPLEMENT_ARITHMETIC_OPERATOR (Rational, *);
IMPLEMENT_ARITHMETIC_OPERATOR (Rational, -);
-IMPLEMENT_ARITHMETIC_OPERATOR (Rational, %);
+IMPLEMENT_ARITHMETIC_OPERATOR (Rational, % );
INSTANTIATE_COMPARE (Rational const &, Rational::compare);
operator << (ostream &, Rational);
#endif
-const Rational infinity_rat = INT_MAX;
+const Rational infinity_rat (U64_MAX);
#endif // RATIONAL_HH