CppADCodeGen 2.4.3
A C++ Algorithmic Differentiation Package with Source Code Generation
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compare.hpp
1#ifndef CPPAD_CG_COMPARE_INCLUDED
2#define CPPAD_CG_COMPARE_INCLUDED
3/* --------------------------------------------------------------------------
4 * CppADCodeGen: C++ Algorithmic Differentiation with Source Code Generation:
5 * Copyright (C) 2012 Ciengis
6 *
7 * CppADCodeGen is distributed under multiple licenses:
8 *
9 * - Eclipse Public License Version 1.0 (EPL1), and
10 * - GNU General Public License Version 3 (GPL3).
11 *
12 * EPL1 terms and conditions can be found in the file "epl-v10.txt", while
13 * terms and conditions for the GPL3 can be found in the file "gpl3.txt".
14 * ----------------------------------------------------------------------------
15 * Author: Joao Leal
16 */
17
18namespace CppAD {
19namespace cg {
20
21template<class Base>
22inline bool operator ==(const CG<Base>& left, const CG<Base>& right) {
23 if (left.isParameter() && right.isParameter()) {
24 return left.getValue() == right.getValue();
25 } else if (left.isParameter() || right.isParameter()) {
26 return false;
27 } else {
28 return left.getOperationNode() == right.getOperationNode();
29 }
30}
31
32template<class Base>
33inline bool operator !=(const CG<Base>& left, const CG<Base>& right) {
34 if (left.isParameter() && right.isParameter()) {
35 return left.getValue() != right.getValue();
36 } else if (left.isParameter() || right.isParameter()) {
37 return true;
38 } else {
39 return left.getOperationNode() != right.getOperationNode();
40 }
41}
42
43#define CPPAD_CG_OPERATOR(Op) \
44 template<class Base> \
45 inline bool operator Op(const CG<Base> &left, const CG<Base> &right) { \
46 if (left.isParameter() && right.isParameter()) { \
47 return left.getValue() Op right.getValue(); \
48 } else { \
49 throw CGException("Cannot use the "#Op" comparison operator in non parameter variables");\
50 } \
51 }
52
53CPPAD_CG_OPERATOR(>)
54CPPAD_CG_OPERATOR( >=)
55CPPAD_CG_OPERATOR(<)
56CPPAD_CG_OPERATOR( <=)
57
58template<class Base>
59inline bool operator==(const CG<Base>& left, const Base& right) {
60 if (left.isParameter()) {
61 return left.getValue() == right;
62 } else {
63 return false;
64 }
65}
66
67template<class Base>
68inline bool operator==(const Base& left, const CG<Base>& right) {
69 if (right.isParameter()) {
70 return left == right.getValue();
71 } else {
72 return false;
73 }
74}
75
76template<class Base>
77inline bool operator!=(const CG<Base>& left, Base right) {
78 if (left.isParameter()) {
79 return left.getValue() != right;
80 } else {
81 return true;
82 }
83}
84
85template<class Base>
86inline bool operator!=(const Base& left, const CG<Base>& right) {
87 if (right.isParameter()) {
88 return left != right.getValue();
89 } else {
90 return true;
91 }
92}
93
94// comparison with double (required by CppAD SparseHessian)
95template<class Base>
96inline bool operator!=(const CG<Base> &left, double right) {
97 if (left.isParameter()) {
98 return left.getValue() != right;
99 } else {
100 return true;
101 }
102}
103
104} // END cg namespace
105} // END CppAD namespace
106
107#endif
108