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// Template array classes
/*
Copyright (C) 1996 John W. Eaton
This file is part of Octave.
Octave is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2, or (at your option) any
later version.
Octave is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with Octave; see the file COPYING. If not, write to the Free
Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#if defined (__GNUG__)
#pragma implementation
#endif
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <cassert>
#include <iostream.h>
#include "Array2.h"
#if defined (HEAVYWEIGHT_INDEXING)
#include "idx-vector.h"
#include "Array2-idx.h"
#endif
#include "lo-error.h"
template <class T>
T
Array2<T>::range_error (const char *fcn, int i, int j) const
{
(*current_liboctave_error_handler)
("%s (%d, %d): range error", fcn, i, j);
return T ();
}
template <class T>
T&
Array2<T>::range_error (const char *fcn, int i, int j)
{
(*current_liboctave_error_handler)
("%s (%d, %d): range error", fcn, i, j);
static T foo;
return foo;
}
// Two dimensional array class.
template <class T>
void
Array2<T>::resize (int r, int c)
{
if (r < 0 || c < 0)
{
(*current_liboctave_error_handler)
("can't resize to negative dimension");
return;
}
if (r == dim1 () && c == dim2 ())
return;
ArrayRep *old_rep = rep;
const T *old_data = data ();
int old_d1 = dim1 ();
int old_d2 = dim2 ();
int old_len = length ();
rep = new ArrayRep (r*c);
d1 = r;
d2 = c;
if (old_data && old_len > 0)
{
int min_r = old_d1 < r ? old_d1 : r;
int min_c = old_d2 < c ? old_d2 : c;
for (int j = 0; j < min_c; j++)
for (int i = 0; i < min_r; i++)
xelem (i, j) = old_data[old_d1*j+i];
}
if (--old_rep->count <= 0)
delete old_rep;
}
template <class T>
void
Array2<T>::resize (int r, int c, const T& val)
{
if (r < 0 || c < 0)
{
(*current_liboctave_error_handler)
("can't resize to negative dimension");
return;
}
if (r == dim1 () && c == dim2 ())
return;
ArrayRep *old_rep = rep;
const T *old_data = data ();
int old_d1 = dim1 ();
int old_d2 = dim2 ();
int old_len = length ();
rep = new ArrayRep (r*c);
d1 = r;
d2 = c;
int min_r = old_d1 < r ? old_d1 : r;
int min_c = old_d2 < c ? old_d2 : c;
if (old_data && old_len > 0)
{
for (int j = 0; j < min_c; j++)
for (int i = 0; i < min_r; i++)
xelem (i, j) = old_data[old_d1*j+i];
}
for (int j = 0; j < min_c; j++)
for (int i = min_r; i < r; i++)
xelem (i, j) = val;
for (int j = min_c; j < c; j++)
for (int i = 0; i < r; i++)
xelem (i, j) = val;
if (--old_rep->count <= 0)
delete old_rep;
}
template <class T>
Array2<T>&
Array2<T>::insert (const Array2<T>& a, int r, int c)
{
int a_rows = a.rows ();
int a_cols = a.cols ();
if (r < 0 || r + a_rows > rows () || c < 0 || c + a_cols > cols ())
{
(*current_liboctave_error_handler) ("range error for insert");
return *this;
}
for (int j = 0; j < a_cols; j++)
for (int i = 0; i < a_rows; i++)
elem (r+i, c+j) = a.elem (i, j);
return *this;
}
/*
;;; Local Variables: ***
;;; mode: C++ ***
;;; End: ***
*/
|
