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CColVector.cc
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1996-09-28
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// ColumnVector manipulations. -*- 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <iostream.h>
#include <Complex.h>
#include "mx-base.h"
#include "mx-inlines.cc"
#include "f77-uscore.h"
#include "lo-error.h"
// Fortran functions we call.
extern "C"
{
int F77_FCN (zgemv) (const char*, const int*, const int*,
const Complex*, const Complex*, const int*,
const Complex*, const int*, const Complex*,
Complex*, const int*, long);
}
/*
* Complex Column Vector class
*/
#define KLUDGE_VECTORS
#define TYPE Complex
#define KL_VEC_TYPE ComplexColumnVector
#include "mx-kludge.cc"
#undef KLUDGE_VECTORS
#undef TYPE
#undef KL_VEC_TYPE
ComplexColumnVector::ComplexColumnVector (const ColumnVector& a)
: Array<Complex> (a.length ())
{
for (int i = 0; i < length (); i++)
elem (i) = a.elem (i);
}
int
ComplexColumnVector::operator == (const ComplexColumnVector& a) const
{
int len = length ();
if (len != a.length ())
return 0;
return equal (data (), a.data (), len);
}
int
ComplexColumnVector::operator != (const ComplexColumnVector& a) const
{
return !(*this == a);
}
// destructive insert/delete/reorder operations
ComplexColumnVector&
ComplexColumnVector::insert (const ColumnVector& a, int r)
{
int a_len = a.length ();
if (r < 0 || r + a_len - 1 > length ())
{
(*current_liboctave_error_handler) ("range error for insert");
return *this;
}
for (int i = 0; i < a_len; i++)
elem (r+i) = a.elem (i);
return *this;
}
ComplexColumnVector&
ComplexColumnVector::insert (const ComplexColumnVector& a, int r)
{
int a_len = a.length ();
if (r < 0 || r + a_len - 1 > length ())
{
(*current_liboctave_error_handler) ("range error for insert");
return *this;
}
for (int i = 0; i < a_len; i++)
elem (r+i) = a.elem (i);
return *this;
}
ComplexColumnVector&
ComplexColumnVector::fill (double val)
{
int len = length ();
if (len > 0)
for (int i = 0; i < len; i++)
elem (i) = val;
return *this;
}
ComplexColumnVector&
ComplexColumnVector::fill (const Complex& val)
{
int len = length ();
if (len > 0)
for (int i = 0; i < len; i++)
elem (i) = val;
return *this;
}
ComplexColumnVector&
ComplexColumnVector::fill (double val, int r1, int r2)
{
int len = length ();
if (r1 < 0 || r2 < 0 || r1 >= len || r2 >= len)
{
(*current_liboctave_error_handler) ("range error for fill");
return *this;
}
if (r1 > r2) { int tmp = r1; r1 = r2; r2 = tmp; }
for (int i = r1; i <= r2; i++)
elem (i) = val;
return *this;
}
ComplexColumnVector&
ComplexColumnVector::fill (const Complex& val, int r1, int r2)
{
int len = length ();
if (r1 < 0 || r2 < 0 || r1 >= len || r2 >= len)
{
(*current_liboctave_error_handler) ("range error for fill");
return *this;
}
if (r1 > r2) { int tmp = r1; r1 = r2; r2 = tmp; }
for (int i = r1; i <= r2; i++)
elem (i) = val;
return *this;
}
ComplexColumnVector
ComplexColumnVector::stack (const ColumnVector& a) const
{
int len = length ();
int nr_insert = len;
ComplexColumnVector retval (len + a.length ());
retval.insert (*this, 0);
retval.insert (a, nr_insert);
return retval;
}
ComplexColumnVector
ComplexColumnVector::stack (const ComplexColumnVector& a) const
{
int len = length ();
int nr_insert = len;
ComplexColumnVector retval (len + a.length ());
retval.insert (*this, 0);
retval.insert (a, nr_insert);
return retval;
}
ComplexRowVector
ComplexColumnVector::hermitian (void) const
{
int len = length ();
return ComplexRowVector (conj_dup (data (), len), len);
}
ComplexRowVector
ComplexColumnVector::transpose (void) const
{
int len = length ();
return ComplexRowVector (dup (data (), len), len);
}
ComplexColumnVector
conj (const ComplexColumnVector& a)
{
int a_len = a.length ();
ComplexColumnVector retval;
if (a_len > 0)
retval = ComplexColumnVector (conj_dup (a.data (), a_len), a_len);
return retval;
}
// resize is the destructive equivalent for this one
ComplexColumnVector
ComplexColumnVector::extract (int r1, int r2) const
{
if (r1 > r2) { int tmp = r1; r1 = r2; r2 = tmp; }
int new_r = r2 - r1 + 1;
ComplexColumnVector result (new_r);
for (int i = 0; i < new_r; i++)
result.elem (i) = elem (r1+i);
return result;
}
// column vector by column vector -> column vector operations
ComplexColumnVector&
ComplexColumnVector::operator += (const ColumnVector& a)
{
int len = length ();
if (len != a.length ())
{
(*current_liboctave_error_handler)
("nonconformant vector += operation attempted");
return *this;
}
if (len == 0)
return *this;
Complex *d = fortran_vec (); // Ensures only one reference to my privates!
add2 (d, a.data (), len);
return *this;
}
ComplexColumnVector&
ComplexColumnVector::operator -= (const ColumnVector& a)
{
int len = length ();
if (len != a.length ())
{
(*current_liboctave_error_handler)
("nonconformant vector -= operation attempted");
return *this;
}
if (len == 0)
return *this;
Complex *d = fortran_vec (); // Ensures only one reference to my privates!
subtract2 (d, a.data (), len);
return *this;
}
ComplexColumnVector&
ComplexColumnVector::operator += (const ComplexColumnVector& a)
{
int len = length ();
if (len != a.length ())
{
(*current_liboctave_error_handler)
("nonconformant vector += operation attempted");
return *this;
}
if (len == 0)
return *this;
Complex *d = fortran_vec (); // Ensures only one reference to my privates!
add2 (d, a.data (), len);
return *this;
}
ComplexColumnVector&
ComplexColumnVector::operator -= (const ComplexColumnVector& a)
{
int len = length ();
if (len != a.length ())
{
(*current_liboctave_error_handler)
("nonconformant vector -= operation attempted");
return *this;
}
if (len == 0)
return *this;
Complex *d = fortran_vec (); // Ensures only one reference to my privates!
subtract2 (d, a.data (), len);
return *this;
}
// column vector by scalar -> column vector operations
ComplexColumnVector
operator + (const ComplexColumnVector& v, double s)
{
int len = v.length ();
return ComplexColumnVector (add (v.data (), len, s), len);
}
ComplexColumnVector
operator - (const ComplexColumnVector& v, double s)
{
int len = v.length ();
return ComplexColumnVector (subtract (v.data (), len, s), len);
}
ComplexColumnVector
operator * (const ComplexColumnVector& v, double s)
{
int len = v.length ();
return ComplexColumnVector (multiply (v.data (), len, s), len);
}
ComplexColumnVector
operator / (const ComplexColumnVector& v, double s)
{
int len = v.length ();
return ComplexColumnVector (divide (v.data (), len, s), len);
}
ComplexColumnVector
operator + (const ColumnVector& a, const Complex& s)
{
int len = a.length ();
return ComplexColumnVector (add (a.data (), len, s), len);
}
ComplexColumnVector
operator - (const ColumnVector& a, const Complex& s)
{
int len = a.length ();
return ComplexColumnVector (subtract (a.data (), len, s), len);
}
ComplexColumnVector
operator * (const ColumnVector& a, const Complex& s)
{
int len = a.length ();
return ComplexColumnVector (multiply (a.data (), len, s), len);
}
ComplexColumnVector
operator / (const ColumnVector& a, const Complex& s)
{
int len = a.length ();
return ComplexColumnVector (divide (a.data (), len, s), len);
}
// scalar by column vector -> column vector operations
ComplexColumnVector
operator + (double s, const ComplexColumnVector& a)
{
int a_len = a.length ();
return ComplexColumnVector (add (a.data (), a_len, s), a_len);
}
ComplexColumnVector
operator - (double s, const ComplexColumnVector& a)
{
int a_len = a.length ();
return ComplexColumnVector (subtract (s, a.data (), a_len), a_len);
}
ComplexColumnVector
operator * (double s, const ComplexColumnVector& a)
{
int a_len = a.length ();
return ComplexColumnVector (multiply (a.data (), a_len, s), a_len);
}
ComplexColumnVector
operator / (double s, const ComplexColumnVector& a)
{
int a_len = a.length ();
return ComplexColumnVector (divide (s, a.data (), a_len), a_len);
}
ComplexColumnVector
operator + (const Complex& s, const ColumnVector& a)
{
int a_len = a.length ();
return ComplexColumnVector (add (a.data (), a_len, s), a_len);
}
ComplexColumnVector
operator - (const Complex& s, const ColumnVector& a)
{
int a_len = a.length ();
return ComplexColumnVector (subtract (s, a.data (), a_len), a_len);
}
ComplexColumnVector
operator * (const Complex& s, const ColumnVector& a)
{
int a_len = a.length ();
return ComplexColumnVector (multiply (a.data (), a_len, s), a_len);
}
ComplexColumnVector
operator / (const Complex& s, const ColumnVector& a)
{
int a_len = a.length ();
return ComplexColumnVector (divide (s, a.data (), a_len), a_len);
}
// matrix by column vector -> column vector operations
ComplexColumnVector
operator * (const ComplexMatrix& m, const ColumnVector& a)
{
ComplexColumnVector tmp (a);
return m * tmp;
}
ComplexColumnVector
operator * (const ComplexMatrix& m, const ComplexColumnVector& a)
{
int nr = m.rows ();
int nc = m.cols ();
if (nc != a.length ())
{
(*current_liboctave_error_handler)
("nonconformant matrix multiplication attempted");
return ComplexColumnVector ();
}
if (nc == 0 || nr == 0)
return ComplexColumnVector (0);
char trans = 'N';
int ld = nr;
Complex alpha (1.0);
Complex beta (0.0);
int i_one = 1;
Complex *y = new Complex [nr];
F77_FCN (zgemv) (&trans, &nr, &nc, &alpha, m.data (), &ld, a.data (),
&i_one, &beta, y, &i_one, 1L);
return ComplexColumnVector (y, nr);
}
// column vector by column vector -> column vector operations
ComplexColumnVector
operator + (const ComplexColumnVector& v, const ColumnVector& a)
{
int len = v.length ();
if (len != a.length ())
{
(*current_liboctave_error_handler)
("nonconformant vector addition attempted");
return ComplexColumnVector ();
}
if (len == 0)
return ComplexColumnVector (0);
return ComplexColumnVector (add (v.data (), a.data (), len), len);
}
ComplexColumnVector
operator - (const ComplexColumnVector& v, const ColumnVector& a)
{
int len = v.length ();
if (len != a.length ())
{
(*current_liboctave_error_handler)
("nonconformant vector subtraction attempted");
return ComplexColumnVector ();
}
if (len == 0)
return ComplexColumnVector (0);
return ComplexColumnVector (subtract (v.data (), a.data (), len), len);
}
ComplexColumnVector
operator + (const ColumnVector& v, const ComplexColumnVector& a)
{
int len = v.length ();
if (len != a.length ())
{
(*current_liboctave_error_handler)
("nonconformant vector subtraction attempted");
return ComplexColumnVector ();
}
if (len == 0)
return ComplexColumnVector (0);
return ComplexColumnVector (add (v.data (), a.data (), len), len);
}
ComplexColumnVector
operator - (const ColumnVector& v, const ComplexColumnVector& a)
{
int len = v.length ();
if (len != a.length ())
{
(*current_liboctave_error_handler)
("nonconformant vector subtraction attempted");
return ComplexColumnVector ();
}
if (len == 0)
return ComplexColumnVector (0);
return ComplexColumnVector (subtract (v.data (), a.data (), len), len);
}
ComplexColumnVector
product (const ComplexColumnVector& v, const ColumnVector& a)
{
int len = v.length ();
if (len != a.length ())
{
(*current_liboctave_error_handler)
("nonconformant vector product attempted");
return ComplexColumnVector ();
}
if (len == 0)
return ComplexColumnVector (0);
return ComplexColumnVector (multiply (v.data (), a.data (), len), len);
}
ComplexColumnVector
quotient (const ComplexColumnVector& v, const ColumnVector& a)
{
int len = v.length ();
if (len != a.length ())
{
(*current_liboctave_error_handler)
("nonconformant vector quotient attempted");
return ComplexColumnVector ();
}
if (len == 0)
return ComplexColumnVector (0);
return ComplexColumnVector (divide (v.data (), a.data (), len), len);
}
ComplexColumnVector
product (const ColumnVector& v, const ComplexColumnVector& a)
{
int len = v.length ();
if (len != a.length ())
{
(*current_liboctave_error_handler)
("nonconformant vector product attempted");
return ColumnVector ();
}
if (len == 0)
return ComplexColumnVector (0);
return ComplexColumnVector (multiply (v.data (), a.data (), len), len);
}
ComplexColumnVector
quotient (const ColumnVector& v, const ComplexColumnVector& a)
{
int len = v.length ();
if (len != a.length ())
{
(*current_liboctave_error_handler)
("nonconformant vector quotient attempted");
return ColumnVector ();
}
if (len == 0)
return ComplexColumnVector (0);
return ComplexColumnVector (divide (v.data (), a.data (), len), len);
}
// matrix by column vector -> column vector operations
ComplexColumnVector
operator * (const Matrix& m, const ComplexColumnVector& a)
{
ComplexMatrix tmp (m);
return tmp * a;
}
// diagonal matrix by column vector -> column vector operations
ComplexColumnVector
operator * (const DiagMatrix& m, const ComplexColumnVector& a)
{
int nr = m.rows ();
int nc = m.cols ();
int a_len = a.length ();
if (nc != a_len)
{
(*current_liboctave_error_handler)
("nonconformant matrix multiplication attempted");
return ColumnVector ();
}
if (nc == 0 || nr == 0)
return ComplexColumnVector (0);
ComplexColumnVector result (nr);
for (int i = 0; i < a_len; i++)
result.elem (i) = a.elem (i) * m.elem (i, i);
for (i = a_len; i < nr; i++)
result.elem (i) = 0.0;
return result;
}
ComplexColumnVector
operator * (const ComplexDiagMatrix& m, const ColumnVector& a)
{
int nr = m.rows ();
int nc = m.cols ();
int a_len = a.length ();
if (nc != a_len)
{
(*current_liboctave_error_handler)
("nonconformant matrix muliplication attempted");
return ComplexColumnVector ();
}
if (nc == 0 || nr == 0)
return ComplexColumnVector (0);
ComplexColumnVector result (nr);
for (int i = 0; i < a_len; i++)
result.elem (i) = a.elem (i) * m.elem (i, i);
for (i = a_len; i < nr; i++)
result.elem (i) = 0.0;
return result;
}
ComplexColumnVector
operator * (const ComplexDiagMatrix& m, const ComplexColumnVector& a)
{
int nr = m.rows ();
int nc = m.cols ();
int a_len = a.length ();
if (nc != a_len)
{
(*current_liboctave_error_handler)
("nonconformant matrix muliplication attempted");
return ComplexColumnVector ();
}
if (nc == 0 || nr == 0)
return ComplexColumnVector (0);
ComplexColumnVector result (nr);
for (int i = 0; i < a_len; i++)
result.elem (i) = a.elem (i) * m.elem (i, i);
for (i = a_len; i < nr; i++)
result.elem (i) = 0.0;
return result;
}
// other operations
ComplexColumnVector
map (c_c_Mapper f, const ComplexColumnVector& a)
{
ComplexColumnVector b (a);
b.map (f);
return b;
}
void
ComplexColumnVector::map (c_c_Mapper f)
{
for (int i = 0; i < length (); i++)
elem (i) = f (elem (i));
}
Complex
ComplexColumnVector::min (void) const
{
int len = length ();
if (len == 0)
return 0.0;
Complex res = elem (0);
double absres = abs (res);
for (int i = 1; i < len; i++)
if (abs (elem (i)) < absres)
{
res = elem (i);
absres = abs (res);
}
return res;
}
Complex
ComplexColumnVector::max (void) const
{
int len = length ();
if (len == 0)
return 0.0;
Complex res = elem (0);
double absres = abs (res);
for (int i = 1; i < len; i++)
if (abs (elem (i)) > absres)
{
res = elem (i);
absres = abs (res);
}
return res;
}
// i/o
ostream&
operator << (ostream& os, const ComplexColumnVector& a)
{
// int field_width = os.precision () + 7;
for (int i = 0; i < a.length (); i++)
os << /* setw (field_width) << */ a.elem (i) << "\n";
return os;
}
istream&
operator >> (istream& is, ComplexColumnVector& a)
{
int len = a.length();
if (len < 1)
is.clear (ios::badbit);
else
{
double tmp;
for (int i = 0; i < len; i++)
{
is >> tmp;
if (is)
a.elem (i) = tmp;
else
break;
}
}
return is;
}
/*
;;; Local Variables: ***
;;; mode: C++ ***
;;; page-delimiter: "^/\\*" ***
;;; End: ***
*/