| 1 | /* | 
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| 2 | * VectorInterface.hpp | 
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| 3 | * | 
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| 4 | *  Created on: Jul 29, 2010 | 
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| 5 | *      Author: heber | 
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| 6 | */ | 
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| 7 |  | 
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| 8 | #ifndef VECTORINTERFACE_HPP_ | 
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| 9 | #define VECTORINTERFACE_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 |  | 
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| 17 | #include <cstring> | 
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| 18 | #include <iostream> | 
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| 19 |  | 
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| 20 | class Vector; | 
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| 21 |  | 
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| 22 | /** Contains all functions of the class Vector as virtual definitions, to give any | 
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| 23 | * class derived from it the interface of a Vector, i.e. Vector-like abilities | 
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| 24 | * (i.e. the scaffold design pattern). | 
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| 25 | */ | 
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| 26 | class VectorInterface  { | 
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| 27 | public: | 
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| 28 |  | 
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| 29 | // Accessors ussually come in pairs... and sometimes even more than that | 
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| 30 | virtual const double& operator[](size_t i) const = 0; | 
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| 31 | virtual const double& at(size_t i) const = 0; | 
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| 32 | virtual void set(size_t i, const double value) = 0; | 
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| 33 | virtual const Vector& getPosition() const = 0; | 
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| 34 |  | 
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| 35 | // Assignment operator | 
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| 36 | virtual void setPosition(const Vector& _vector) = 0; | 
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| 37 |  | 
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| 38 | // operators for mathematical operations | 
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| 39 | virtual const VectorInterface& operator+=(const Vector& b) = 0; | 
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| 40 | virtual const VectorInterface& operator-=(const Vector& b) = 0; | 
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| 41 | virtual Vector const operator+(const Vector& b) const = 0; | 
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| 42 | virtual Vector const operator-(const Vector& b) const = 0; | 
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| 43 |  | 
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| 44 | virtual void Zero() = 0; | 
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| 45 | virtual void One(const double one) = 0; | 
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| 46 | virtual void LinearCombinationOfVectors(const Vector &x1, const Vector &x2, const Vector &x3, const double * const factors) = 0; | 
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| 47 |  | 
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| 48 | virtual double distance(const Vector &point) const = 0; | 
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| 49 | virtual double DistanceSquared(const Vector &y) const = 0; | 
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| 50 | virtual double distance(const VectorInterface &_atom) const = 0; | 
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| 51 | virtual double DistanceSquared(const VectorInterface &_atom) const = 0; | 
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| 52 |  | 
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| 53 | virtual void ScaleAll(const double *factor) = 0; | 
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| 54 | virtual void ScaleAll(const Vector &factor) = 0; | 
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| 55 | virtual void Scale(const double factor) = 0; | 
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| 56 |  | 
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| 57 | virtual std::ostream & operator << (std::ostream &ost) const = 0; | 
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| 58 |  | 
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| 59 | protected: | 
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| 60 | /** Constructor and destructor are protected as VectorInterface should never | 
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| 61 | * be instantiated by itself but only as a derived class. | 
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| 62 | */ | 
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| 63 | VectorInterface(); | 
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| 64 | ~VectorInterface(); | 
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| 65 | }; | 
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| 66 |  | 
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| 67 | #endif /* VECTORINTERFACE_HPP_ */ | 
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