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JMATH::JMatrixND_t Struct Reference

Basic NxN matrix. More...

#include <JMatrixND.hh>

Inheritance diagram for JMATH::JMatrixND_t:
JMATH::JMatrixND JMATH::JMatrixNS JFIT::JMatrixNZ

Public Member Functions

 JMatrixND_t ()
 Default constructor. More...
 
 JMatrixND_t (const JMatrixND_t &A)
 Copy constructor. More...
 
 JMatrixND_t (JMatrixND_t &&A)
 Move constructor. More...
 
 ~JMatrixND_t ()
 Destructor. More...
 
void clear ()
 Clear memory. More...
 
void resize (const size_t size)
 Resize matrix. More...
 
JMatrixND_t & reset ()
 Set matrix to the null matrix. More...
 
void set (const JMatrixND_t &A)
 Set matrix. More...
 
void swap (JMatrixND_t &A)
 Swap matrices. More...
 
JMatrixND_t & transpose ()
 Transpose. More...
 
size_t size () const
 Get dimension of matrix. More...
 
size_t capacity () const
 Get capacity of dimension. More...
 
bool empty () const
 Check emptyness. More...
 
const double * data () const
 Get pointer to data. More...
 
double * data ()
 Get pointer to data. More...
 
const double * operator[] (size_t row) const
 Get row data. More...
 
double * operator[] (size_t row)
 Get row data. More...
 
double operator() (const size_t row, const size_t col) const
 Get matrix element. More...
 
double & operator() (const size_t row, const size_t col)
 Get matrix element. More...
 
double at (size_t row, size_t col) const
 Get matrix element. More...
 
double & at (size_t row, size_t col)
 Get matrix element. More...
 

Protected Attributes

double * __p
 pointer to data More...
 
size_t __n
 dimension of matrix More...
 
size_t __m
 capacity of matrix More...
 

Detailed Description

Basic NxN matrix.

Definition at line 36 of file JMatrixND.hh.

Constructor & Destructor Documentation

◆ JMatrixND_t() [1/3]

JMATH::JMatrixND_t::JMatrixND_t ( )
inline

Default constructor.

Definition at line 40 of file JMatrixND.hh.

40  :
41  __p(NULL),
42  __n(0),
43  __m(0)
44  {}
JMATH::JMatrixND_t::__p
double * __p
pointer to data
Definition: JMatrixND.hh:339
JMATH::JMatrixND_t::__m
size_t __m
capacity of matrix
Definition: JMatrixND.hh:341
JMATH::JMatrixND_t::__n
size_t __n
dimension of matrix
Definition: JMatrixND.hh:340

◆ JMatrixND_t() [2/3]

JMATH::JMatrixND_t::JMatrixND_t ( const JMatrixND_t &  A)
inline

Copy constructor.

Parameters
Amatrix

Definition at line 52 of file JMatrixND.hh.

52  :
53  JMatrixND_t()
54  {
55  set(A);
56  }
JMATH::JMatrixND_t::set
void set(const JMatrixND_t &A)
Set matrix.
Definition: JMatrixND.hh:155
JMATH::JMatrixND_t::JMatrixND_t
JMatrixND_t()
Default constructor.
Definition: JMatrixND.hh:40

◆ JMatrixND_t() [3/3]

JMATH::JMatrixND_t::JMatrixND_t ( JMatrixND_t &&  A)
inline

Move constructor.

Parameters
Amatrix

Definition at line 64 of file JMatrixND.hh.

64  :
65  JMatrixND_t()
66  {
67  swap(A);
68  }
JMATH::JMatrixND_t::swap
void swap(JMatrixND_t &A)
Swap matrices.
Definition: JMatrixND.hh:168

◆ ~JMatrixND_t()

JMATH::JMatrixND_t::~JMatrixND_t ( )
inline

Destructor.

Definition at line 74 of file JMatrixND.hh.

75  {
76  clear();
77  }
JMATH::JMatrixND_t::clear
void clear()
Clear memory.
Definition: JMatrixND.hh:83

Member Function Documentation

◆ clear()

void JMATH::JMatrixND_t::clear ( )
inline

Clear memory.

Definition at line 83 of file JMatrixND.hh.

84  {
85  if (__p != NULL) {
86  delete [] __p;
87  }
88 
89  __p = NULL;
90  __n = 0;
91  __m = 0;
92  }

◆ resize()

void JMATH::JMatrixND_t::resize ( const size_t  size)
inline

Resize matrix.

Note that this method does not maintain data in the matrix.

Parameters
sizedimension

Definition at line 102 of file JMatrixND.hh.

103  {
104  if (size != this->__n) {
105 
106  if (size > this->__m) {
107 
108  if (__p != NULL) {
109  delete[] __p;
110  }
111 
112  __m = size;
113  __p = new double[__m*__m];
114 
115  if (__p == NULL) {
116  THROW(JNewException, "JMatrixND::resize(" << size << "): Memory allocation failure.");
117  }
118  }
119 
120  __n = size;
121  }
122  }
THROW
#define THROW(JException_t, A)
Marco for throwing exception with std::ostream compatible message.
Definition: JException.hh:712
JMATH::JMatrixND_t::size
size_t size() const
Get dimension of matrix.
Definition: JMatrixND.hh:202

◆ reset()

JMatrixND_t& JMATH::JMatrixND_t::reset ( )
inline

Set matrix to the null matrix.

Returns
this matrix

Definition at line 130 of file JMatrixND.hh.

131  {
132  double* p0 = this->data();
133  double* p1 = this->data();
134 
135  if (!this->empty()) {
136 
137  for (size_t i = this->size(); i != 0; --i, ++p1) {
138  *p1 = 0.0;
139  }
140 
141  for (size_t i = this->size(); i != 1; --i, p1 += this->size()) {
142  memcpy(p1, p0, this->size() * sizeof(double));
143  }
144  }
145 
146  return *this;
147  }
p1
TPaveText * p1
Definition: JDrawModule3D.cc:35
JMATH::JMatrixND_t::data
const double * data() const
Get pointer to data.
Definition: JMatrixND.hh:235
JMATH::JMatrixND_t::empty
bool empty() const
Check emptyness.
Definition: JMatrixND.hh:224

◆ set()

void JMATH::JMatrixND_t::set ( const JMatrixND_t &  A)
inline

Set matrix.

Parameters
Amatrix

Definition at line 155 of file JMatrixND.hh.

156  {
157  this->resize(A.size());
158 
159  memcpy(this->data(), A.data(), A.size() * A.size() * sizeof(double));
160  }
JMATH::JMatrixND_t::resize
void resize(const size_t size)
Resize matrix.
Definition: JMatrixND.hh:102

◆ swap()

void JMATH::JMatrixND_t::swap ( JMatrixND_t &  A)
inline

Swap matrices.

Parameters
Amatrix

Definition at line 168 of file JMatrixND.hh.

169  {
170  using std::swap;
171 
172  swap(this->__p, A.__p);
173  swap(this->__n, A.__n);
174  swap(this->__m, A.__m);
175  }

◆ transpose()

JMatrixND_t& JMATH::JMatrixND_t::transpose ( )
inline

Transpose.

Returns
this matrix

Definition at line 183 of file JMatrixND.hh.

184  {
185  using std::swap;
186 
187  for (size_t row = 0; row != this->size(); ++row) {
188  for (size_t col = 0; col != row; ++col) {
189  swap((*this)(row,col), (*this)(col,row));
190  }
191  }
192 
193  return *this;
194  }

◆ size()

size_t JMATH::JMatrixND_t::size ( ) const
inline

Get dimension of matrix.

Returns
dimension

Definition at line 202 of file JMatrixND.hh.

203  {
204  return __n;
205  }

◆ capacity()

size_t JMATH::JMatrixND_t::capacity ( ) const
inline

Get capacity of dimension.

Returns
capacity

Definition at line 213 of file JMatrixND.hh.

214  {
215  return __m;
216  }

◆ empty()

bool JMATH::JMatrixND_t::empty ( ) const
inline

Check emptyness.

Returns
true if empty; else false

Definition at line 224 of file JMatrixND.hh.

225  {
226  return __n == 0;
227  }

◆ data() [1/2]

const double* JMATH::JMatrixND_t::data ( ) const
inline

Get pointer to data.

Returns
pointer to data.

Definition at line 235 of file JMatrixND.hh.

236  {
237  return __p;
238  }

◆ data() [2/2]

double* JMATH::JMatrixND_t::data ( )
inline

Get pointer to data.

Returns
pointer to data.

Definition at line 246 of file JMatrixND.hh.

247  {
248  return __p;
249  }

◆ operator[]() [1/2]

const double* JMATH::JMatrixND_t::operator[] ( size_t  row) const
inline

Get row data.

Parameters
rowrow number
Returns
pointer to row data

Definition at line 258 of file JMatrixND.hh.

259  {
260  return __p + row*__n;
261  }

◆ operator[]() [2/2]

double* JMATH::JMatrixND_t::operator[] ( size_t  row)
inline

Get row data.

Parameters
rowrow number
Returns
pointer to row data

Definition at line 270 of file JMatrixND.hh.

271  {
272  return __p + row*__n;
273  }

◆ operator()() [1/2]

double JMATH::JMatrixND_t::operator() ( const size_t  row,
const size_t  col 
) const
inline

Get matrix element.

Parameters
rowrow number
colcolumn number
Returns
matrix element at (row,col)

Definition at line 283 of file JMatrixND.hh.

284  {
285  return *(__p + row*__n + col);
286  }

◆ operator()() [2/2]

double& JMATH::JMatrixND_t::operator() ( const size_t  row,
const size_t  col 
)
inline

Get matrix element.

Parameters
rowrow number
colcolumn number
Returns
matrix element at (row,col)

Definition at line 296 of file JMatrixND.hh.

297  {
298  return *(__p + row*__n + col);
299  }

◆ at() [1/2]

double JMATH::JMatrixND_t::at ( size_t  row,
size_t  col 
) const
inline

Get matrix element.

Parameters
rowrow number
colcolumn number
Returns
matrix element at (row,col)

Definition at line 309 of file JMatrixND.hh.

310  {
311  if (row >= this->size() ||
312  col >= this->size()) {
313  THROW(JIndexOutOfRange, "JMatrixND::at(" << row << "," << col << "): index out of range.");
314  }
315 
316  return (*this)(row, col);
317  }

◆ at() [2/2]

double& JMATH::JMatrixND_t::at ( size_t  row,
size_t  col 
)
inline

Get matrix element.

Parameters
rowrow number
colcolumn number
Returns
matrix element at (row,col)

Definition at line 327 of file JMatrixND.hh.

328  {
329  if (row >= this->size() ||
330  col >= this->size()) {
331  THROW(JIndexOutOfRange, "JMatrixND::at(" << row << "," << col << "): index out of range.");
332  }
333 
334  return (*this)(row, col);
335  }

Member Data Documentation

◆ __p

double* JMATH::JMatrixND_t::__p
protected

pointer to data

Definition at line 339 of file JMatrixND.hh.

◆ __n

size_t JMATH::JMatrixND_t::__n
protected

dimension of matrix

Definition at line 340 of file JMatrixND.hh.

◆ __m

size_t JMATH::JMatrixND_t::__m
protected

capacity of matrix

Definition at line 341 of file JMatrixND.hh.

The documentation for this struct was generated from the following file:
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