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
|
//
// IntervalRationalContextBase.cs
//
// Authors:
// Alexander Chebaturkin (chebaturkin@gmail.com)
//
// Copyright (C) 2012 Alexander Chebaturkin
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using Mono.CodeContracts.Static.Lattices;
namespace Mono.CodeContracts.Static.Analysis.Numerical {
abstract class IntervalRationalContextBase<TInterval> : IntervalContextBase<TInterval, Rational>
where TInterval : IntervalBase<TInterval, Rational> {
public override bool IsGreaterThanZero (Rational value)
{
return value > Rational.Zero;
}
public override bool IsGreaterEqualThanZero (Rational value)
{
return value >= Rational.Zero;
}
public override bool IsLessThanZero (Rational value)
{
return value < Rational.Zero;
}
public override bool IsLessEqualThanZero (Rational value)
{
return value <= Rational.Zero;
}
public override bool IsLessEqualThanZero (TInterval value)
{
if (value.IsNormal ())
return IsLessEqualThanZero (value.UpperBound);
return false;
}
public override bool IsLessThan (Rational a, Rational b)
{
return a < b;
}
public override bool IsLessEqualThan (Rational a, Rational b)
{
return a <= b;
}
public override bool IsZero (Rational value)
{
return value.IsZero;
}
public override bool IsNotZero (Rational value)
{
return !value.IsZero;
}
public override bool IsPlusInfinity (Rational value)
{
return value.IsPlusInfinity;
}
public override bool IsMinusInfinity (Rational value)
{
return value.IsMinusInfinity;
}
public override bool AreEqual (Rational a, Rational b)
{
return a == b;
}
public override bool IsMaxInt32 (TInterval value)
{
return value.IsSinglePoint && value.LowerBound.IsInteger && (int) value.LowerBound.NextInt32 == int.MaxValue;
}
}
}
|
