1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#ifndef INCLUDED_TOOLS_FRACT_HXX
#define INCLUDED_TOOLS_FRACT_HXX
#include <tools/toolsdllapi.h>
class SvStream;
class TOOLS_DLLPUBLIC SAL_WARN_UNUSED Fraction
{
private:
long nNumerator;
long nDenominator;
public:
Fraction() { nNumerator = 0; nDenominator = 1; }
Fraction( const Fraction & rFrac );
Fraction( long nNum, long nDen=1 );
Fraction( double dVal );
bool IsValid() const;
long GetNumerator() const { return nNumerator; }
long GetDenominator() const { return nDenominator; }
operator long() const;
operator double() const;
Fraction& operator=( const Fraction& rfrFrac );
Fraction& operator+=( const Fraction& rfrFrac );
Fraction& operator-=( const Fraction& rfrFrac );
Fraction& operator*=( const Fraction& rfrFrac );
Fraction& operator/=( const Fraction& rfrFrac );
void ReduceInaccurate( unsigned nSignificantBits );
friend inline Fraction operator+( const Fraction& rVal1, const Fraction& rVal2 );
friend inline Fraction operator-( const Fraction& rVal1, const Fraction& rVal2 );
friend inline Fraction operator*( const Fraction& rVal1, const Fraction& rVal2 );
friend inline Fraction operator/( const Fraction& rVal1, const Fraction& rVal2 );
TOOLS_DLLPUBLIC friend bool operator==( const Fraction& rVal1, const Fraction& rVal2 );
friend inline bool operator!=( const Fraction& rVal1, const Fraction& rVal2 );
TOOLS_DLLPUBLIC friend bool operator< ( const Fraction& rVal1, const Fraction& rVal2 );
TOOLS_DLLPUBLIC friend bool operator> ( const Fraction& rVal1, const Fraction& rVal2 );
friend inline bool operator<=( const Fraction& rVal1, const Fraction& rVal2 );
friend inline bool operator>=( const Fraction& rVal1, const Fraction& rVal2 );
TOOLS_DLLPUBLIC friend SvStream& ReadFraction( SvStream& rIStream, Fraction& rFract );
TOOLS_DLLPUBLIC friend SvStream& WriteFraction( SvStream& rOStream, const Fraction& rFract );
};
inline Fraction::Fraction( const Fraction& rFrac )
{
nNumerator = rFrac.nNumerator;
nDenominator = rFrac.nDenominator;
}
inline Fraction& Fraction::operator=( const Fraction& rFrac )
{
nNumerator = rFrac.nNumerator;
nDenominator = rFrac.nDenominator;
return *this;
}
inline bool Fraction::IsValid() const
{
return (nDenominator > 0);
}
inline Fraction::operator long() const
{
if ( nDenominator > 0 )
return (nNumerator / nDenominator);
else
return 0;
}
inline Fraction operator+( const Fraction& rVal1, const Fraction& rVal2 )
{
Fraction aErg( rVal1 );
aErg += rVal2;
return aErg;
}
inline Fraction operator-( const Fraction& rVal1, const Fraction& rVal2 )
{
Fraction aErg( rVal1 );
aErg -= rVal2;
return aErg;
}
inline Fraction operator*( const Fraction& rVal1, const Fraction& rVal2 )
{
Fraction aErg( rVal1 );
aErg *= rVal2;
return aErg;
}
inline Fraction operator/( const Fraction& rVal1, const Fraction& rVal2 )
{
Fraction aErg( rVal1 );
aErg /= rVal2;
return aErg;
}
inline bool operator !=( const Fraction& rVal1, const Fraction& rVal2 )
{
return !(rVal1 == rVal2);
}
inline bool operator <=( const Fraction& rVal1, const Fraction& rVal2 )
{
return !(rVal1 > rVal2);
}
inline bool operator >=( const Fraction& rVal1, const Fraction& rVal2 )
{
return !(rVal1 < rVal2);
}
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
