CppADCodeGen 2.4.3
A C++ Algorithmic Differentiation Package with Source Code Generation
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linear_index_pattern.hpp
1#ifndef CPPAD_CG_LINEAR_INDEX_PATTERN_INCLUDED
2#define CPPAD_CG_LINEAR_INDEX_PATTERN_INCLUDED
3/* --------------------------------------------------------------------------
4 * CppADCodeGen: C++ Algorithmic Differentiation with Source Code Generation:
5 * Copyright (C) 2013 Ciengis
6 * Copyright (C) 2018 Joao Leal
7 *
8 * CppADCodeGen is distributed under multiple licenses:
9 *
10 * - Eclipse Public License Version 1.0 (EPL1), and
11 * - GNU General Public License Version 3 (GPL3).
12 *
13 * EPL1 terms and conditions can be found in the file "epl-v10.txt", while
14 * terms and conditions for the GPL3 can be found in the file "gpl3.txt".
15 * ----------------------------------------------------------------------------
16 * Author: Joao Leal
17 */
18
19namespace CppAD {
20namespace cg {
21
26protected:
27 long xOffset_;
28 // slope
29 long dy_;
30 long dx_;
31 // constant term
32 long b_;
33public:
34
35 inline LinearIndexPattern(long xOffset, long dy, long dx, long b) :
36 xOffset_(xOffset),
37 dy_(dy),
38 dx_(dx),
39 b_(b) {
40 }
41
42 inline virtual ~LinearIndexPattern() = default;
43
44 inline long getXOffset()const {
45 return xOffset_;
46 }
47
48 inline long getLinearSlopeDy() const {
49 return dy_;
50 }
51
52 inline void setLinearSlopeDy(long dy) {
53 dy_ = dy;
54 }
55
56 inline long getLinearSlopeDx() const {
57 return dx_;
58 }
59
60 inline long getLinearConstantTerm() const {
61 return b_;
62 }
63
64 inline void setLinearConstantTerm(long b) {
65 b_ = b;
66 }
67
68 inline IndexPatternType getType() const override {
69 return IndexPatternType::Linear;
70 }
71
72 inline void getSubIndexes(std::set<IndexPattern*>& indexes) const override {
73 // nothing to add
74 }
75
76 inline long evaluate(long x) const {
77 return ((x - xOffset_) / dx_) * dy_ + b_;
78 }
79
80};
81
82} // END cg namespace
83} // END CppAD namespace
84
85#endif