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mx-kludge.cc
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1996-09-28
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// kludge.cc -*- C++ -*-
/*
Copyright (C) 1992, 1993, 1994, 1995 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, 675 Mass Ave, Cambridge, MA 02139, USA.
*/
// Nothing like a little CPP abuse to brighten everyone's day. Would
// have been nice to do this with template functions but as of 2.5.x,
// g++ seems to fail in various ways, either not resolving general
// template functions, or not instantiating non-member template
// functions.
//
// When templates work more reliably in g++, this will be replaced by
// the MArray class.
#define DO_VS_OP(OP) \
int l = a.length (); \
TYPE *result = 0; \
if (l > 0) \
{ \
result = new TYPE [l]; \
const TYPE *x = a.data (); \
for (int i = 0; i < l; i++) \
result[i] = x[i] OP s; \
}
#define DO_SV_OP(OP) \
int l = a.length (); \
TYPE *result = 0; \
if (l > 0) \
{ \
result = new TYPE [l]; \
const TYPE *x = a.data (); \
for (int i = 0; i < l; i++) \
result[i] = s OP x[i]; \
}
#define DO_VV_OP(OP) \
TYPE *result = 0; \
if (l > 0) \
{ \
result = new TYPE [l]; \
const TYPE *x = a.data (); \
const TYPE *y = b.data (); \
for (int i = 0; i < l; i++) \
result[i] = x[i] OP y[i]; \
}
#define NEG_V \
int l = a.length (); \
TYPE *result = 0; \
if (l > 0) \
{ \
result = new TYPE [l]; \
const TYPE *x = a.data (); \
for (int i = 0; i < l; i++) \
result[i] = -x[i]; \
}
#ifdef KLUDGE_VECTORS
/*
* Like type operations for vectors.
*/
// Element by element vector by scalar ops.
KL_VEC_TYPE
operator + (const KL_VEC_TYPE& a, const TYPE& s)
{
DO_VS_OP (+);
return KL_VEC_TYPE (result, l);
}
KL_VEC_TYPE
operator - (const KL_VEC_TYPE& a, const TYPE& s)
{
DO_VS_OP (-);
return KL_VEC_TYPE (result, l);
}
KL_VEC_TYPE
operator * (const KL_VEC_TYPE& a, const TYPE& s)
{
DO_VS_OP (*);
return KL_VEC_TYPE (result, l);
}
KL_VEC_TYPE
operator / (const KL_VEC_TYPE& a, const TYPE& s)
{
DO_VS_OP (/);
return KL_VEC_TYPE (result, l);
}
// Element by element scalar by vector ops.
KL_VEC_TYPE
operator + (const TYPE& s, const KL_VEC_TYPE& a)
{
DO_SV_OP (+);
return KL_VEC_TYPE (result, l);
}
KL_VEC_TYPE
operator - (const TYPE& s, const KL_VEC_TYPE& a)
{
DO_SV_OP (-);
return KL_VEC_TYPE (result, l);
}
KL_VEC_TYPE
operator * (const TYPE& s, const KL_VEC_TYPE& a)
{
DO_SV_OP (*);
return KL_VEC_TYPE (result, l);
}
KL_VEC_TYPE
operator / (const TYPE& s, const KL_VEC_TYPE& a)
{
DO_SV_OP (/);
return KL_VEC_TYPE (result, l);
}
// Element by element vector by vector ops.
KL_VEC_TYPE
operator + (const KL_VEC_TYPE& a, const KL_VEC_TYPE& b)
{
int l = a.length ();
if (l != b.length ())
{
(*current_liboctave_error_handler)
("nonconformant array addition attempted");
return KL_VEC_TYPE ();
}
if (l == 0)
return KL_VEC_TYPE ();
DO_VV_OP (+);
return KL_VEC_TYPE (result, l);
}
KL_VEC_TYPE
operator - (const KL_VEC_TYPE& a, const KL_VEC_TYPE& b)
{
int l = a.length ();
if (l != b.length ())
{
(*current_liboctave_error_handler)
("nonconformant array subtraction attempted");
return KL_VEC_TYPE ();
}
if (l == 0)
return KL_VEC_TYPE ();
DO_VV_OP (-);
return KL_VEC_TYPE (result, l);
}
KL_VEC_TYPE
product (const KL_VEC_TYPE& a, const KL_VEC_TYPE& b)
{
int l = a.length ();
if (l != b.length ())
{
(*current_liboctave_error_handler)
("nonconformant array product attempted");
return KL_VEC_TYPE ();
}
if (l == 0)
return KL_VEC_TYPE ();
DO_VV_OP (*);
return KL_VEC_TYPE (result, l);
}
KL_VEC_TYPE
quotient (const KL_VEC_TYPE& a, const KL_VEC_TYPE& b)
{
int l = a.length ();
if (l != b.length ())
{
(*current_liboctave_error_handler)
("nonconformant array quotient attempted");
return KL_VEC_TYPE ();
}
if (l == 0)
return KL_VEC_TYPE ();
DO_VV_OP (/);
return KL_VEC_TYPE (result, l);
}
// Unary MArray ops.
KL_VEC_TYPE
operator - (const KL_VEC_TYPE& a)
{
NEG_V;
return KL_VEC_TYPE (result, l);
}
#endif
#ifdef KLUDGE_MATRICES
/*
* Like type operations for matrices
*/
// Element by element matrix by scalar ops.
KL_MAT_TYPE
operator + (const KL_MAT_TYPE& a, const TYPE& s)
{
DO_VS_OP (+);
return KL_MAT_TYPE (result, a.rows (), a.cols ());
}
KL_MAT_TYPE
operator - (const KL_MAT_TYPE& a, const TYPE& s)
{
DO_VS_OP (-);
return KL_MAT_TYPE (result, a.rows (), a.cols ());
}
KL_MAT_TYPE
operator * (const KL_MAT_TYPE& a, const TYPE& s)
{
DO_VS_OP (*);
return KL_MAT_TYPE (result, a.rows (), a.cols ());
}
KL_MAT_TYPE
operator / (const KL_MAT_TYPE& a, const TYPE& s)
{
DO_VS_OP (/);
return KL_MAT_TYPE (result, a.rows (), a.cols ());
}
// Element by element scalar by matrix ops.
KL_MAT_TYPE
operator + (const TYPE& s, const KL_MAT_TYPE& a)
{
DO_SV_OP (+);
return KL_MAT_TYPE (result, a.rows (), a.cols ());
}
KL_MAT_TYPE
operator - (const TYPE& s, const KL_MAT_TYPE& a)
{
DO_SV_OP (-);
return KL_MAT_TYPE (result, a.rows (), a.cols ());
}
KL_MAT_TYPE
operator * (const TYPE& s, const KL_MAT_TYPE& a)
{
DO_SV_OP (*);
return KL_MAT_TYPE (result, a.rows (), a.cols ());
}
KL_MAT_TYPE
operator / (const TYPE& s, const KL_MAT_TYPE& a)
{
DO_SV_OP (/);
return KL_MAT_TYPE (result, a.rows (), a.cols ());
}
// Element by element matrix by matrix ops.
KL_MAT_TYPE
operator + (const KL_MAT_TYPE& a, const KL_MAT_TYPE& b)
{
int r = a.rows ();
int c = a.cols ();
if (r != b.rows () || c != b.cols ())
{
(*current_liboctave_error_handler)
("nonconformant array addition attempted");
return KL_MAT_TYPE ();
}
if (r == 0 || c == 0)
return KL_MAT_TYPE (r, c);
int l = a.length ();
DO_VV_OP (+);
return KL_MAT_TYPE (result, r, c);
}
KL_MAT_TYPE
operator - (const KL_MAT_TYPE& a, const KL_MAT_TYPE& b)
{
int r = a.rows ();
int c = a.cols ();
if (r != b.rows () || c != b.cols ())
{
(*current_liboctave_error_handler)
("nonconformant array subtraction attempted");
return KL_MAT_TYPE ();
}
if (r == 0 || c == 0)
return KL_MAT_TYPE (r, c);
int l = a.length ();
DO_VV_OP (-);
return KL_MAT_TYPE (result, r, c);
}
KL_MAT_TYPE
product (const KL_MAT_TYPE& a, const KL_MAT_TYPE& b)
{
int r = a.rows ();
int c = a.cols ();
if (r != b.rows () || c != b.cols ())
{
(*current_liboctave_error_handler)
("nonconformant array product attempted");
return KL_MAT_TYPE ();
}
if (r == 0 || c == 0)
return KL_MAT_TYPE (r, c);
int l = a.length ();
DO_VV_OP (*);
return KL_MAT_TYPE (result, r, c);
}
KL_MAT_TYPE
quotient (const KL_MAT_TYPE& a, const KL_MAT_TYPE& b)
{
int r = a.rows ();
int c = a.cols ();
if (r != b.rows () || c != b.cols ())
{
(*current_liboctave_error_handler)
("nonconformant array quotient attempted");
return KL_MAT_TYPE ();
}
if (r == 0 || c == 0)
return KL_MAT_TYPE (r, c);
int l = a.length ();
DO_VV_OP (/);
return KL_MAT_TYPE (result, r, c);
}
// Unary matrix ops.
KL_MAT_TYPE
operator - (const KL_MAT_TYPE& a)
{
NEG_V;
return KL_MAT_TYPE (result, a.rows (), a.cols ());
}
#endif
#ifdef KLUDGE_DIAG_MATRICES
/*
* Like type operations for diagonal matrices.
*/
// Element by element MDiagArray by scalar ops.
KL_DMAT_TYPE
operator * (const KL_DMAT_TYPE& a, const TYPE& s)
{
DO_VS_OP (*);
return KL_DMAT_TYPE (result, a.rows (), a.cols ());
}
KL_DMAT_TYPE
operator / (const KL_DMAT_TYPE& a, const TYPE& s)
{
DO_VS_OP (/);
return KL_DMAT_TYPE (result, a.rows (), a.cols ());
}
// Element by element scalar by MDiagArray ops.
KL_DMAT_TYPE
operator * (const TYPE& s, const KL_DMAT_TYPE& a)
{
DO_SV_OP (*);
return KL_DMAT_TYPE (result, a.rows (), a.cols ());
}
// Element by element MDiagArray by MDiagArray ops.
KL_DMAT_TYPE
operator + (const KL_DMAT_TYPE& a, const KL_DMAT_TYPE& b)
{
int r = a.rows ();
int c = a.cols ();
if (r != b.rows () || c != b.cols ())
{
(*current_liboctave_error_handler)
("nonconformant diagonal array addition attempted");
return KL_DMAT_TYPE ();
}
if (c == 0 || r == 0)
return KL_DMAT_TYPE ();
int l = a.length ();
DO_VV_OP (+);
return KL_DMAT_TYPE (result, r, c);
}
KL_DMAT_TYPE
operator - (const KL_DMAT_TYPE& a, const KL_DMAT_TYPE& b)
{
int r = a.rows ();
int c = a.cols ();
if (r != b.rows () || c != b.cols ())
{
(*current_liboctave_error_handler)
("nonconformant diagonal array subtraction attempted");
return KL_DMAT_TYPE ();
}
if (c == 0 || r == 0)
return KL_DMAT_TYPE ();
int l = a.length ();
DO_VV_OP (-);
return KL_DMAT_TYPE (result, r, c);
}
KL_DMAT_TYPE
product (const KL_DMAT_TYPE& a, const KL_DMAT_TYPE& b)
{
int r = a.rows ();
int c = a.cols ();
if (r != b.rows () || c != b.cols ())
{
(*current_liboctave_error_handler)
("nonconformant diagonal array product attempted");
return KL_DMAT_TYPE ();
}
if (c == 0 || r == 0)
return KL_DMAT_TYPE ();
int l = a.length ();
DO_VV_OP (*);
return KL_DMAT_TYPE (result, r, c);
}
// Unary MDiagArray ops.
KL_DMAT_TYPE
operator - (const KL_DMAT_TYPE& a)
{
NEG_V;
return KL_DMAT_TYPE (result, a.rows (), a.cols ());
}
#endif
#undef DO_SV_OP
#undef DO_VS_OP
#undef DO_VV_OP
#undef NEG_V
/*
;;; Local Variables: ***
;;; mode: C++ ***
;;; page-delimiter: "^/\\*" ***
;;; End: ***
*/