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CoinPackedVectorBase.hpp
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1 /* $Id: CoinPackedVectorBase.hpp 2083 2019-01-06 19:38:09Z unxusr $ */
2 // Copyright (C) 2000, International Business Machines
3 // Corporation and others. All Rights Reserved.
4 // This code is licensed under the terms of the Eclipse Public License (EPL).
5
6 #ifndef CoinPackedVectorBase_H
7 #define CoinPackedVectorBase_H
8
9 #include <set>
10 #include <map>
11 #include "CoinPragma.hpp"
12 #include "CoinError.hpp"
13
14 class CoinPackedVector;
15
23 class CoinPackedVectorBase {
24
25 public:
28 virtual int getNumElements() const = 0;
31 virtual const int *getIndices() const = 0;
33 virtual const double *getElements() const = 0;
35
51 void setTestForDuplicateIndex(bool test) const;
60 void setTestForDuplicateIndexWhenTrue(bool test) const;
63 bool testForDuplicateIndex() const { return testForDuplicateIndex_; }
65 inline void setTestsOff() const
66 {
67 testForDuplicateIndex_ = false;
68 testedDuplicateIndex_ = false;
69 }
71
79 double *denseVector(int denseSize) const;
87 double operator[](int i) const;
89
92 int getMaxIndex() const;
95 int getMinIndex() const;
96
98 void duplicateIndex(const char *methodName = NULL,
99 const char *className = NULL) const;
100
103 bool isExistingIndex(int i) const;
104
107 int findIndex(int i) const;
108
110
115 bool operator==(const CoinPackedVectorBase &rhs) const;
117 bool operator!=(const CoinPackedVectorBase &rhs) const;
118
119 #if 0
120 // LL: This should be implemented eventually. It is useful to have.
124 int lexCompare(const CoinPackedVectorBase& rhs);
125 #endif
126
133 int compare(const CoinPackedVectorBase &rhs) const;
134
142 template < class FloatEqual >
143 bool
144 isEquivalent(const CoinPackedVectorBase &rhs, const FloatEqual &eq) const
145 {
146 if (getNumElements() != rhs.getNumElements())
147 return false;
148
149 duplicateIndex("equivalent", "CoinPackedVector");
150 rhs.duplicateIndex("equivalent", "CoinPackedVector");
151
152 std::map< int, double > mv;
153 const int *inds = getIndices();
154 const double *elems = getElements();
155 int i;
156 for (i = getNumElements() - 1; i >= 0; --i) {
157 mv.insert(std::make_pair(inds[i], elems[i]));
158 }
159
160 std::map< int, double > mvRhs;
161 inds = rhs.getIndices();
162 elems = rhs.getElements();
163 for (i = getNumElements() - 1; i >= 0; --i) {
164 mvRhs.insert(std::make_pair(inds[i], elems[i]));
165 }
166
167 std::map< int, double >::const_iterator mvI = mv.begin();
168 std::map< int, double >::const_iterator mvIlast = mv.end();
169 std::map< int, double >::const_iterator mvIrhs = mvRhs.begin();
170 while (mvI != mvIlast) {
171 if (mvI->first != mvIrhs->first || !eq(mvI->second, mvIrhs->second))
172 return false;
173 ++mvI;
174 ++mvIrhs;
175 }
176 return true;
177 }
178
179 bool isEquivalent(const CoinPackedVectorBase &rhs) const;
181
184 double dotProduct(const double *dense) const;
186
188 double oneNorm() const;
189
191 double normSquare() const;
192
194 double twoNorm() const;
195
197 double infNorm() const;
198
200 double sum() const;
202
203 protected:
209 CoinPackedVectorBase();
210
211 public:
213 virtual ~CoinPackedVectorBase();
215
216 private:
225 CoinPackedVectorBase(const CoinPackedVectorBase &);
228 CoinPackedVectorBase &operator=(const CoinPackedVectorBase &);
230
231 protected:
234 void findMaxMinIndices() const;
236
238 std::set< int > *indexSet(const char *methodName = NULL,
239 const char *className = NULL) const;
240
242 void clearIndexSet() const;
243 void clearBase() const;
244 void copyMaxMinIndex(const CoinPackedVectorBase &x) const
245 {
246 maxIndex_ = x.maxIndex_;
247 minIndex_ = x.minIndex_;
248 }
250
251 private:
254 mutable int maxIndex_;
257 mutable int minIndex_;
261 mutable std::set< int > *indexSetPtr_;
264 mutable bool testForDuplicateIndex_;
267 mutable bool testedDuplicateIndex_;
269 };
270
271 #endif
272
273 /* vi: softtabstop=2 shiftwidth=2 expandtab tabstop=2
274 */
CoinPackedVectorBase::minIndex_
int minIndex_
Contains minimum index value or infinity.
Definition: CoinPackedVectorBase.hpp:257
CoinPackedVectorBase::operator!=
bool operator!=(const CoinPackedVectorBase &rhs) const
Not equal.
CoinPackedVectorBase::testForDuplicateIndex_
bool testForDuplicateIndex_
True if the vector should be tested for duplicate indices when they can occur.
Definition: CoinPackedVectorBase.hpp:264
CoinPackedVectorBase::setTestForDuplicateIndex
void setTestForDuplicateIndex(bool test) const
Set to the argument value whether to test for duplicate indices in the vector whenever they can occur...
CoinPackedVectorBase::operator[]
double operator[](int i) const
Access the i&#39;th element of the full storage vector.
CoinPackedVectorBase::sum
double sum() const
Sum elements of vector.
CoinPackedVectorBase::copyMaxMinIndex
void copyMaxMinIndex(const CoinPackedVectorBase &x) const
Definition: CoinPackedVectorBase.hpp:244
CoinPackedVectorBase::isExistingIndex
bool isExistingIndex(int i) const
Return true if the i&#39;th element of the full storage vector exists in the packed storage vector...
CoinPackedVectorBase::getMinIndex
int getMinIndex() const
Get value of minimum index.
CoinPackedVectorBase::indexSetPtr_
std::set< int > * indexSetPtr_
Store the indices in a set.
Definition: CoinPackedVectorBase.hpp:261
CoinPackedVectorBase::maxIndex_
int maxIndex_
Contains max index value or -infinity.
Definition: CoinPackedVectorBase.hpp:255
CoinPackedVectorBase::twoNorm
double twoNorm() const
Return the 2-norm of the vector.
CoinPackedVectorBase::isEquivalent
bool isEquivalent(const CoinPackedVectorBase &rhs, const FloatEqual &eq) const
equivalent - If shallow packed vector A &amp; B are equivalent, then they are still equivalent no matter ...
Definition: CoinPackedVectorBase.hpp:144
CoinPackedVectorBase::~CoinPackedVectorBase
virtual ~CoinPackedVectorBase()
Destructor.
CoinPackedVectorBase::oneNorm
double oneNorm() const
Return the 1-norm of the vector.
CoinPackedVectorBase
Abstract base class for various sparse vectors.
Definition: CoinPackedVectorBase.hpp:23
CoinPackedVectorBase::getElements
virtual const double * getElements() const =0
Get element values.
CoinError.hpp
CoinPackedVectorBase::CoinPackedVectorBase
CoinPackedVectorBase()
Default constructor.
CoinPackedVectorBase::findMaxMinIndices
void findMaxMinIndices() const
Find Maximum and Minimum Indices.
CoinPragma.hpp
CoinPackedVectorBase::testForDuplicateIndex
bool testForDuplicateIndex() const
Returns true if the vector should be tested for duplicate indices when they can occur.
Definition: CoinPackedVectorBase.hpp:63
CoinPackedVectorBase::setTestForDuplicateIndexWhenTrue
void setTestForDuplicateIndexWhenTrue(bool test) const
Set to the argument value whether to test for duplicate indices in the vector whenever they can occur...
CoinPackedVectorBase::operator=
CoinPackedVectorBase & operator=(const CoinPackedVectorBase &)
This class provides const access to packed vectors, so there&#39;s no need to provide an assignment opera...
CoinPackedVectorBase::getNumElements
virtual int getNumElements() const =0
Get length of indices and elements vectors.
CoinPackedVectorBase::compare
int compare(const CoinPackedVectorBase &rhs) const
This method establishes an ordering on packed vectors.
CoinPackedVectorBase::clearBase
void clearBase() const
CoinPackedVectorBase::testedDuplicateIndex_
bool testedDuplicateIndex_
True if the vector has already been tested for duplicate indices.
Definition: CoinPackedVectorBase.hpp:267
CoinPackedVectorBase::operator==
bool operator==(const CoinPackedVectorBase &rhs) const
Equal.
CoinPackedVectorBase::duplicateIndex
void duplicateIndex(const char *methodName=NULL, const char *className=NULL) const
Throw an exception if there are duplicate indices.
CoinPackedVectorBase::getIndices
virtual const int * getIndices() const =0
Get indices of elements.
CoinPackedVectorBase::findIndex
int findIndex(int i) const
Return the position of the i&#39;th element of the full storage vector.
CoinPackedVectorBase::indexSet
std::set< int > * indexSet(const char *methodName=NULL, const char *className=NULL) const
Return indexSetPtr_ (create it if necessary).
CoinPackedVectorBase::dotProduct
double dotProduct(const double *dense) const
Create the dot product with a full vector.
CoinPackedVectorBase::denseVector
double * denseVector(int denseSize) const
Get the vector as a dense vector.
CoinPackedVector
Sparse Vector.
Definition: CoinPackedVector.hpp:123
CoinPackedVectorBase::getMaxIndex
int getMaxIndex() const
Get value of maximum index.
CoinPackedVectorBase::clearIndexSet
void clearIndexSet() const
Delete the indexSet.
CoinPackedVectorBase::setTestsOff
void setTestsOff() const
Just sets test stuff false without a try etc.
Definition: CoinPackedVectorBase.hpp:65
CoinPackedVectorBase::normSquare
double normSquare() const
Return the square of the 2-norm of the vector.
CoinPackedVectorBase::infNorm
double infNorm() const
Return the infinity-norm of the vector.