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////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 1996-2025 The Octave Project Developers
//
// See the file COPYRIGHT.md in the top-level directory of this
// distribution or <https://octave.org/copyright/>.
//
// 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
// <https://www.gnu.org/licenses/>.
//
////////////////////////////////////////////////////////////////////////
// This file should not include config.h. It is only included in other
// C++ source files that should have included config.h before including
// this file.
#include "MDiagArray2.h"
#include "Array-util.h"
#include "lo-error.h"
template <typename 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 ();
octave_idx_type i = 0;
for (; i < len; i++)
if (DiagArray2<T>::elem (i, i) != val) break;
retval = i == len;
}
return retval;
}
// Two dimensional diagonal array with math ops.
// Element by element MDiagArray2 by MDiagArray2 ops.
// Element by element MDiagArray2 by scalar ops.
#define MARRAY_DAS_OP(OP, FN) \
template <typename T> \
MDiagArray2<T> \
operator OP (const MDiagArray2<T>& a, const T& s) \
{ \
return MDiagArray2<T> (do_ms_binary_op<T, T, T> (a, s, FN), \
a.m_d1, a.m_d2); \
}
MARRAY_DAS_OP (*, mx_inline_mul)
MARRAY_DAS_OP (/, mx_inline_div)
// Element by element scalar by MDiagArray2 ops.
template <typename T>
MDiagArray2<T>
operator * (const T& s, const MDiagArray2<T>& a)
{
return MDiagArray2<T> (do_sm_binary_op<T, T, T> (s, a, mx_inline_mul),
a.m_d1, a.m_d2);
}
// Element by element MDiagArray2 by MDiagArray2 ops.
#define MARRAY_DADA_OP(FCN, OP, FN) \
template <typename T> \
MDiagArray2<T> \
FCN (const MDiagArray2<T>& a, const MDiagArray2<T>& b) \
{ \
if (a.m_d1 != b.m_d1 || a.m_d2 != b.m_d2) \
octave::err_nonconformant (#FCN, a.m_d1, a.m_d2, b.m_d1, b.m_d2); \
\
return MDiagArray2<T> (do_mm_binary_op<T, T, T> (a, b, FN, FN, FN, #FCN), \
a.m_d1, a.m_d2); \
}
MARRAY_DADA_OP (operator +, +, mx_inline_add)
MARRAY_DADA_OP (operator -, -, mx_inline_sub)
MARRAY_DADA_OP (product, *, mx_inline_mul)
// Unary MDiagArray2 ops.
template <typename T>
MDiagArray2<T>
operator + (const MDiagArray2<T>& a)
{
return a;
}
template <typename T>
MDiagArray2<T>
operator - (const MDiagArray2<T>& a)
{
return MDiagArray2<T> (do_mx_unary_op<T, T> (a, mx_inline_uminus),
a.m_d1, a.m_d2);
}
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