[5c867e] | 1 | /*
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| 2 | * Eigenvalues.hpp
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| 3 | *
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| 4 | * Created on: Mar 8, 2013
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| 5 | * Author: heber
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| 6 | */
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| 7 |
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| 8 | #ifndef EIGENVALUES_HPP_
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| 9 | #define EIGENVALUES_HPP_
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| 10 |
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| 11 | // include config.h
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| 12 | #ifdef HAVE_CONFIG_H
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| 13 | #include <config.h>
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| 14 | #endif
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| 15 |
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| 16 | #include <iosfwd>
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| 17 | #include <set>
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| 18 | #include <vector>
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| 19 |
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| 20 | class Eigenvalues
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| 21 | {
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[955051] | 22 | //!> grant unit test access to private parts
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| 23 | friend class EigenvaluesTest;
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| 24 | //!> grant output operator access
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| 25 | friend std::ostream & operator<<(std::ostream &ost, const Eigenvalues &eigenvalues);
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[5c867e] | 26 | public:
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| 27 | //!> named type for a vector of sample values
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| 28 | typedef std::vector<double> samples_t;
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| 29 | public:
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| 30 | /** Default constructor for class Eigenvalues.
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| 31 | *
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| 32 | */
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| 33 | Eigenvalues()
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| 34 | {}
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| 35 |
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| 36 | /** Constructor with a given vector of eigenvalues.
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| 37 | *
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| 38 | * \param _samples set of eigenvalues
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| 39 | */
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| 40 | Eigenvalues(const samples_t &_samples)
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| 41 | {
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[eb32b6] | 42 | addedsamples.insert(_samples.begin(), _samples.end());
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[5c867e] | 43 | }
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| 44 |
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| 45 | /** Default destructor for Eigenvalues.
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| 46 | *
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| 47 | */
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| 48 | ~Eigenvalues()
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| 49 | {}
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| 50 |
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| 51 | /** Adding another set of eigenvalues onto this one.
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| 52 | *
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| 53 | *
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| 54 | * @param other other Eigenvalues
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| 55 | * @return ref to this instance
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| 56 | */
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[eb32b6] | 57 | Eigenvalues& operator+=(const Eigenvalues &other)
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| 58 | {
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| 59 | addedsamples.insert(other.addedsamples.begin(), other.addedsamples.end());
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| 60 | subtractedsamples.insert(other.subtractedsamples.begin(), other.subtractedsamples.end());
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[5c867e] | 61 | return *this;
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| 62 | }
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| 63 |
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| 64 | /** Subtracting another set of eigenvalues from this one.
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| 65 | *
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| 66 | * @param other other Eigenvalues
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| 67 | * @return ref to this instance
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| 68 | */
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[eb32b6] | 69 | Eigenvalues& operator-=(const Eigenvalues &other);
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| 70 | // {
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| 71 | // subtractedsamples.insert(other.addedsamples.begin(), other.addedsamples.end());
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| 72 | // return *this;
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| 73 | // }
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[5c867e] | 74 |
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[955051] | 75 | /** Equality operator.
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| 76 | *
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| 77 | * @param other other instance to check against
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| 78 | * @return true - both are equal, false - some eigenvalues differ
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| 79 | */
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| 80 | bool operator==(const Eigenvalues& other) const;
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| 81 |
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| 82 | bool operator!=(const Eigenvalues& other) const
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| 83 | {
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| 84 | return (!(*this == other));
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| 85 | }
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| 86 |
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[5c867e] | 87 | private:
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| 88 | //!> typedef for the internal container format
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| 89 | typedef std::set<double> sorted_samples_t;
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| 90 | //!> internally we store a set of sorted samples
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[eb32b6] | 91 | sorted_samples_t addedsamples;
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| 92 | sorted_samples_t subtractedsamples;
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[5c867e] | 93 | };
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| 94 |
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| 95 | /** Function to print eigenvalues to ostream.
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| 96 | *
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| 97 | * @param ost output stream
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| 98 | * @param eigenvalues set of eigenvalues to print
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| 99 | * @return ref to given ostream for concatenation
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| 100 | */
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| 101 | std::ostream & operator<<(std::ostream &ost, const Eigenvalues &eigenvalues);
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| 102 |
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| 103 | template<typename T> T ZeroInstance();
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| 104 | template<> Eigenvalues ZeroInstance<Eigenvalues>();
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| 105 |
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| 106 | #endif /* EIGENVALUES_HPP_ */
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