/usr/include/octave-3.2.4/octave/MDiagArray2.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.
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Copyright (C) 1996, 1997, 2000, 2002, 2003, 2004, 2005, 2007, 2008
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 "MDiagArray2.h"
#include "Array-util.h"
#include "lo-error.h"
#include "MArray-defs.h"
template <class T>
bool
MDiagArray2<T>::is_multiple_of_identity (T val) const
{
bool retval = this->rows () == this->cols ();
if (retval)
{
octave_idx_type len = this->length (), i = 0;
for (;i < len; i++)
if (DiagArray2<T>::elem (i, i) != val) break;
retval = i == len;
}
return retval;
}
// Some functions return a reference to this object after a failure.
template <class T> MDiagArray2<T> MDiagArray2<T>::nil_array;
// Two dimensional diagonal array with math ops.
// Element by element MDiagArray2 by MDiagArray2 ops.
template <class T>
MDiagArray2<T>&
operator += (MDiagArray2<T>& a, const MDiagArray2<T>& b)
{
octave_idx_type r = a.rows ();
octave_idx_type c = a.cols ();
octave_idx_type b_nr = b.rows ();
octave_idx_type b_nc = b.cols ();
if (r != b_nr || c != b_nc)
{
gripe_nonconformant ("operator +=", r, c, b_nr, b_nc);
return MDiagArray2<T>::nil_array;
}
else
{
octave_idx_type l = a.length ();
DO_VV_OP2 (T, a, +=, b);
}
return a;
}
template <class T>
MDiagArray2<T>&
operator -= (MDiagArray2<T>& a, const MDiagArray2<T>& b)
{
octave_idx_type r = a.rows ();
octave_idx_type c = a.cols ();
octave_idx_type b_nr = b.rows ();
octave_idx_type b_nc = b.cols ();
if (r != b_nr || c != b_nc)
{
gripe_nonconformant ("operator -=", r, c, b_nr, b_nc);
return MDiagArray2<T>::nil_array;
}
else
{
octave_idx_type l = a.length ();
DO_VV_OP2 (T, a, -=, b);
}
return a;
}
// Element by element MDiagArray2 by scalar ops.
#define MARRAY_DAS_OP(OP) \
template <class T> \
MDiagArray2<T> \
operator OP (const MDiagArray2<T>& a, const T& s) \
{ \
MDiagArray2<T> result (a.rows (), a.cols ()); \
T *r = result.fortran_vec (); \
octave_idx_type l = a.length (); \
const T *v = a.data (); \
DO_VS_OP (r, l, v, OP, s); \
return result; \
}
MARRAY_DAS_OP (*)
MARRAY_DAS_OP (/)
// Element by element scalar by MDiagArray2 ops.
template <class T>
MDiagArray2<T>
operator * (const T& s, const MDiagArray2<T>& a)
{
MDiagArray2<T> result (a.rows (), a.cols ()); \
T *r = result.fortran_vec (); \
octave_idx_type l = a.length (); \
const T *v = a.data (); \
DO_SV_OP (r, l, s, *, v); \
return result; \
}
// Element by element MDiagArray2 by MDiagArray2 ops.
#define MARRAY_DADA_OP(FCN, OP) \
template <class T> \
MDiagArray2<T> \
FCN (const MDiagArray2<T>& a, const MDiagArray2<T>& b) \
{ \
octave_idx_type a_nr = a.rows (); \
octave_idx_type a_nc = a.cols (); \
octave_idx_type b_nr = b.rows (); \
octave_idx_type b_nc = b.cols (); \
if (a_nr != b_nr || a_nc != b_nc) \
{ \
gripe_nonconformant (#FCN, a_nr, a_nc, b_nr, b_nc); \
return MDiagArray2<T> (); \
} \
if (a_nc == 0 || a_nr == 0) \
return MDiagArray2<T> (); \
octave_idx_type l = a.length (); \
MDiagArray2<T> result (a_nr, a_nc); \
T *r = result.fortran_vec (); \
const T *x = a.data (); \
const T *y = b.data (); \
DO_VV_OP (r, l, x, OP, y); \
return result; \
}
MARRAY_DADA_OP (operator +, +)
MARRAY_DADA_OP (operator -, -)
MARRAY_DADA_OP (product, *)
// Unary MDiagArray2 ops.
template <class T>
MDiagArray2<T>
operator + (const MDiagArray2<T>& a)
{
return a;
}
template <class T>
MDiagArray2<T>
operator - (const MDiagArray2<T>& a)
{
octave_idx_type l = a.length ();
MDiagArray2<T> result (a.rows (), a.cols ());
T *r = result.fortran_vec ();
const T *x = a.data ();
NEG_V (r, l, x);
return result;
}
/*
;;; Local Variables: ***
;;; mode: C++ ***
;;; End: ***
*/
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