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00001 // Copyright (C) 2002 Johan Hoffman and Anders Logg. 00002 // Licensed under the GNU GPL Version 2. 00003 // 00004 // Contributions by: Georgios Foufas (2002) 00005 // Johan Jansson (2003) 00006 00007 #ifndef __VECTOR_H 00008 #define __VECTOR_H 00009 00010 #include <dolfin/constants.h> 00011 #include <dolfin/dolfin_log.h> 00012 #include <dolfin/Variable.h> 00013 #include <dolfin/Matrix.h> 00014 00015 namespace dolfin { 00016 00017 class Vector : public Variable { 00018 public: 00019 00020 Vector(); 00021 Vector(int size); 00022 Vector(unsigned int size); 00023 Vector(const Vector& x); 00024 Vector(real x0); 00025 Vector(real x0, real x1); 00026 Vector(real x0, real x1, real x2); 00027 ~Vector (); 00028 00029 void init(unsigned int size); 00030 void clear(); 00031 unsigned int size() const; 00032 unsigned int bytes() const; 00033 00034 real operator()(unsigned int i) const; 00035 real& operator()(unsigned int i); 00036 00037 void operator=(const Vector& x); 00038 void operator=(real scalar); 00039 void operator=(const Matrix::Row& row); 00040 void operator=(const Matrix::Column& col); 00041 00042 void operator+=(const Vector& x); 00043 void operator+=(const Matrix::Row& row); 00044 void operator+=(const Matrix::Column& col); 00045 void operator+=(real a); 00046 00047 void operator-=(const Vector& x); 00048 void operator-=(const Matrix::Row& row); 00049 void operator-=(const Matrix::Column& col); 00050 void operator-=(real a); 00051 00052 void operator*=(real a); 00053 00054 real operator*(const Vector& x) const; 00055 real operator*(const Matrix::Row& row) const; 00056 real operator*(const Matrix::Column& col) const; 00057 00058 real norm () const; 00059 real norm (unsigned int i) const; 00060 00061 void add(real a, Vector& x); 00062 void add(real a, const Matrix::Row& row); 00063 void add(real a, const Matrix::Column& col); 00064 00065 void rand(); 00066 00067 // Output 00068 void show() const; 00069 friend LogStream& operator<< (LogStream& stream, const Vector& vector); 00070 00071 // Friends 00072 friend class DirectSolver; 00073 friend class Matrix; 00074 friend class SISolver; 00075 00076 private: 00077 00078 void alloc(unsigned int size); 00079 00080 unsigned int n; 00081 real *values; 00082 00083 }; 00084 00085 } 00086 00087 #endif
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