/usr/include/octave-3.2.4/octave/DiagArray2.cc is in octave3.2-headers 3.2.4-12.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 | // Template array classes
/*
Copyright (C) 1996, 1997, 1999, 2000, 2002, 2003, 2004, 2005, 2007,
2008, 2009 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 3 of the License, 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, see
<http://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <cassert>
#include <iostream>
#include <algorithm>
#include "DiagArray2.h"
#include "lo-error.h"
template <class T>
const typename DiagArray2<T>::Proxy&
DiagArray2<T>::Proxy::operator = (const T& val) const
{
if (i == j)
{
if (object)
object->set (val, i);
}
else
(*current_liboctave_error_handler)
("invalid assignment to off-diagonal in diagonal array");
return *this;
}
template <class T>
DiagArray2<T>::Proxy::operator T () const
{
if (object && i == j)
return object->get (i);
else
{
static T foo;
return foo;
}
}
template <class T>
Array<T>
DiagArray2<T>::diag (octave_idx_type k) const
{
Array<T> d;
if (k == 0)
// The main diagonal is shallow-copied.
d = *this;
else if (k > 0 && k < cols ())
d = Array<T> (std::min (cols () - k, rows ()), T ());
else if (k < 0 && -k < rows ())
d = Array<T> (std::min (rows () + k, cols ()), T ());
else
(*current_liboctave_error_handler)
("diag: requested diagonal out of range");
return d;
}
template <class T>
DiagArray2<T>
DiagArray2<T>::transpose (void) const
{
DiagArray2<T> retval (*this);
retval.d1 = d2;
retval.d2 = d1;
return retval;
}
template <class T>
DiagArray2<T>
DiagArray2<T>::hermitian (T (* fcn) (const T&)) const
{
DiagArray2<T> retval (dim2 (), dim1 ());
const T *p = this->data ();
T *q = retval.fortran_vec ();
for (octave_idx_type i = 0; i < this->length (); i++)
q [i] = fcn (p [i]);
return retval;
}
// A two-dimensional array with diagonal elements only.
template <class T>
T
DiagArray2<T>::checkelem (octave_idx_type r, octave_idx_type c) const
{
if (r < 0 || c < 0 || r >= dim1 () || c >= dim2 ())
{
(*current_liboctave_error_handler) ("range error in DiagArray2");
return T ();
}
return elem (r, c);
}
template <class T>
typename DiagArray2<T>::Proxy
DiagArray2<T>::checkelem (octave_idx_type r, octave_idx_type c)
{
if (r < 0 || c < 0 || r >= dim1 () || c >= dim2 ())
{
(*current_liboctave_error_handler) ("range error in DiagArray2");
return Proxy (0, r, c);
}
else
return Proxy (this, r, c);
}
template <class T>
void
DiagArray2<T>::resize (octave_idx_type r, octave_idx_type c)
{
if (r < 0 || c < 0)
{
(*current_liboctave_error_handler) ("can't resize to negative dimensions");
return;
}
if (r != dim1 () || c != dim2 ())
{
Array<T>::resize (std::min (r, c));
d1 = r; d2 = c;
}
}
template <class T>
void
DiagArray2<T>::resize_fill (octave_idx_type r, octave_idx_type c, const T& val)
{
if (r < 0 || c < 0)
{
(*current_liboctave_error_handler) ("can't resize to negative dimensions");
return;
}
if (r != dim1 () || c != dim2 ())
{
Array<T>::resize_fill (std::min (r, c), val);
d1 = r; d2 = c;
}
}
template <class T>
DiagArray2<T>::operator Array2<T> (void) const
{
Array2<T> result (dim1 (), dim2 ());
for (octave_idx_type i = 0, len = length (); i < len; i++)
result.xelem (i, i) = dgelem (i);
return result;
}
/*
;;; Local Variables: ***
;;; mode: C++ ***
;;; End: ***
*/
|