--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/liboctave/fCRowVector.cc	Sun Apr 27 22:34:17 2008 +0200
@@ -0,0 +1,511 @@
+// RowVector manipulations.
+/*
+
+Copyright (C) 1994, 1995, 1996, 1997, 1999, 2000, 2001, 2002, 2003,
+              2004, 2005, 2006, 2007 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 <iostream>
+
+#include "Array-util.h"
+#include "f77-fcn.h"
+#include "functor.h"
+#include "lo-error.h"
+#include "mx-base.h"
+#include "mx-inlines.cc"
+#include "oct-cmplx.h"
+
+// Fortran functions we call.
+
+extern "C"
+{
+  F77_RET_T
+  F77_FUNC (cgemv, CGEMV) (F77_CONST_CHAR_ARG_DECL,
+			   const octave_idx_type&, const octave_idx_type&, const FloatComplex&,
+			   const FloatComplex*, const octave_idx_type&, const FloatComplex*,
+			   const octave_idx_type&, const FloatComplex&, FloatComplex*, const octave_idx_type&
+			   F77_CHAR_ARG_LEN_DECL);
+
+  F77_RET_T
+  F77_FUNC (xcdotu, XCDOTU) (const octave_idx_type&, const FloatComplex*, const octave_idx_type&,
+			     const FloatComplex*, const octave_idx_type&, FloatComplex&);
+}
+
+// FloatComplex Row Vector class
+
+FloatComplexRowVector::FloatComplexRowVector (const FloatRowVector& a)
+  : MArray<FloatComplex> (a.length ())
+{
+  for (octave_idx_type i = 0; i < length (); i++)
+    elem (i) = a.elem (i);
+}
+
+bool
+FloatComplexRowVector::operator == (const FloatComplexRowVector& a) const
+{
+  octave_idx_type len = length ();
+  if (len != a.length ())
+    return 0;
+  return mx_inline_equal (data (), a.data (), len);
+}
+
+bool
+FloatComplexRowVector::operator != (const FloatComplexRowVector& a) const
+{
+  return !(*this == a);
+}
+
+// destructive insert/delete/reorder operations
+
+FloatComplexRowVector&
+FloatComplexRowVector::insert (const FloatRowVector& a, octave_idx_type c)
+{
+  octave_idx_type a_len = a.length ();
+
+  if (c < 0 || c + a_len > length ())
+    {
+      (*current_liboctave_error_handler) ("range error for insert");
+      return *this;
+    }
+
+  if (a_len > 0)
+    {
+      make_unique ();
+
+      for (octave_idx_type i = 0; i < a_len; i++)
+	xelem (c+i) = a.elem (i);
+    }
+
+  return *this;
+}
+
+FloatComplexRowVector&
+FloatComplexRowVector::insert (const FloatComplexRowVector& a, octave_idx_type c)
+{
+  octave_idx_type a_len = a.length ();
+
+  if (c < 0 || c + a_len > length ())
+    {
+      (*current_liboctave_error_handler) ("range error for insert");
+      return *this;
+    }
+
+  if (a_len > 0)
+    {
+      make_unique ();
+
+      for (octave_idx_type i = 0; i < a_len; i++)
+	xelem (c+i) = a.elem (i);
+    }
+
+  return *this;
+}
+
+FloatComplexRowVector&
+FloatComplexRowVector::fill (float val)
+{
+  octave_idx_type len = length ();
+
+  if (len > 0)
+    {
+      make_unique ();
+
+      for (octave_idx_type i = 0; i < len; i++)
+	xelem (i) = val;
+    }
+
+  return *this;
+}
+
+FloatComplexRowVector&
+FloatComplexRowVector::fill (const FloatComplex& val)
+{
+  octave_idx_type len = length ();
+
+  if (len > 0)
+    {
+      make_unique ();
+
+      for (octave_idx_type i = 0; i < len; i++)
+	xelem (i) = val;
+    }
+
+  return *this;
+}
+
+FloatComplexRowVector&
+FloatComplexRowVector::fill (float val, octave_idx_type c1, octave_idx_type c2)
+{
+  octave_idx_type len = length ();
+
+  if (c1 < 0 || c2 < 0 || c1 >= len || c2 >= len)
+    {
+      (*current_liboctave_error_handler) ("range error for fill");
+      return *this;
+    }
+
+  if (c1 > c2) { octave_idx_type tmp = c1; c1 = c2; c2 = tmp; }
+
+  if (c2 >= c1)
+    {
+      make_unique ();
+
+      for (octave_idx_type i = c1; i <= c2; i++)
+	xelem (i) = val;
+    }
+
+  return *this;
+}
+
+FloatComplexRowVector&
+FloatComplexRowVector::fill (const FloatComplex& val, octave_idx_type c1, octave_idx_type c2)
+{
+  octave_idx_type len = length ();
+
+  if (c1 < 0 || c2 < 0 || c1 >= len || c2 >= len)
+    {
+      (*current_liboctave_error_handler) ("range error for fill");
+      return *this;
+    }
+
+  if (c1 > c2) { octave_idx_type tmp = c1; c1 = c2; c2 = tmp; }
+
+  if (c2 >= c1)
+    {
+      make_unique ();
+
+      for (octave_idx_type i = c1; i <= c2; i++)
+	xelem (i) = val;
+    }
+
+  return *this;
+}
+
+FloatComplexRowVector
+FloatComplexRowVector::append (const FloatRowVector& a) const
+{
+  octave_idx_type len = length ();
+  octave_idx_type nc_insert = len;
+  FloatComplexRowVector retval (len + a.length ());
+  retval.insert (*this, 0);
+  retval.insert (a, nc_insert);
+  return retval;
+}
+
+FloatComplexRowVector
+FloatComplexRowVector::append (const FloatComplexRowVector& a) const
+{
+  octave_idx_type len = length ();
+  octave_idx_type nc_insert = len;
+  FloatComplexRowVector retval (len + a.length ());
+  retval.insert (*this, 0);
+  retval.insert (a, nc_insert);
+  return retval;
+}
+
+FloatComplexColumnVector 
+FloatComplexRowVector::hermitian (void) const
+{
+  return MArray<FloatComplex>::hermitian (std::conj);
+}
+
+FloatComplexColumnVector 
+FloatComplexRowVector::transpose (void) const
+{
+  return MArray<FloatComplex>::transpose ();
+}
+
+FloatComplexRowVector
+conj (const FloatComplexRowVector& a)
+{
+  octave_idx_type a_len = a.length ();
+  FloatComplexRowVector retval;
+  if (a_len > 0)
+    retval = FloatComplexRowVector (mx_inline_conj_dup (a.data (), a_len), a_len);
+  return retval;
+}
+
+// resize is the destructive equivalent for this one
+
+FloatComplexRowVector
+FloatComplexRowVector::extract (octave_idx_type c1, octave_idx_type c2) const
+{
+  if (c1 > c2) { octave_idx_type tmp = c1; c1 = c2; c2 = tmp; }
+
+  octave_idx_type new_c = c2 - c1 + 1;
+
+  FloatComplexRowVector result (new_c);
+
+  for (octave_idx_type i = 0; i < new_c; i++)
+    result.elem (i) = elem (c1+i);
+
+  return result;
+}
+
+FloatComplexRowVector
+FloatComplexRowVector::extract_n (octave_idx_type r1, octave_idx_type n) const
+{
+  FloatComplexRowVector result (n);
+
+  for (octave_idx_type i = 0; i < n; i++)
+    result.elem (i) = elem (r1+i);
+
+  return result;
+}
+
+// row vector by row vector -> row vector operations
+
+FloatComplexRowVector&
+FloatComplexRowVector::operator += (const FloatRowVector& a)
+{
+  octave_idx_type len = length ();
+
+  octave_idx_type a_len = a.length ();
+
+  if (len != a_len)
+    {
+      gripe_nonconformant ("operator +=", len, a_len);
+      return *this;
+    }
+
+  if (len == 0)
+    return *this;
+
+  FloatComplex *d = fortran_vec (); // Ensures only one reference to my privates!
+
+  mx_inline_add2 (d, a.data (), len);
+  return *this;
+}
+
+FloatComplexRowVector&
+FloatComplexRowVector::operator -= (const FloatRowVector& a)
+{
+  octave_idx_type len = length ();
+
+  octave_idx_type a_len = a.length ();
+
+  if (len != a_len)
+    {
+      gripe_nonconformant ("operator -=", len, a_len);
+      return *this;
+    }
+
+  if (len == 0)
+    return *this;
+
+  FloatComplex *d = fortran_vec (); // Ensures only one reference to my privates!
+
+  mx_inline_subtract2 (d, a.data (), len);
+  return *this;
+}
+
+// row vector by matrix -> row vector
+
+FloatComplexRowVector
+operator * (const FloatComplexRowVector& v, const FloatComplexMatrix& a)
+{
+  FloatComplexRowVector retval;
+
+  octave_idx_type len = v.length ();
+
+  octave_idx_type a_nr = a.rows ();
+  octave_idx_type a_nc = a.cols ();
+
+  if (a_nr != len)
+    gripe_nonconformant ("operator *", 1, len, a_nr, a_nc);
+  else
+    {
+      if (len == 0)
+	retval.resize (a_nc, 0.0);
+      else
+	{
+	  // Transpose A to form A'*x == (x'*A)'
+
+	  octave_idx_type ld = a_nr;
+
+	  retval.resize (a_nc);
+	  FloatComplex *y = retval.fortran_vec ();
+
+	  F77_XFCN (cgemv, CGEMV, (F77_CONST_CHAR_ARG2 ("T", 1),
+				   a_nr, a_nc, 1.0, a.data (),
+				   ld, v.data (), 1, 0.0, y, 1
+				   F77_CHAR_ARG_LEN (1)));
+	}
+    }
+
+  return retval;
+}
+
+FloatComplexRowVector
+operator * (const FloatRowVector& v, const FloatComplexMatrix& a)
+{
+  FloatComplexRowVector tmp (v);
+  return tmp * a;
+}
+
+// other operations
+
+FloatRowVector
+FloatComplexRowVector::map (dmapper fcn) const
+{
+  return MArray<FloatComplex>::map<float> (func_ptr (fcn));
+}
+
+FloatComplexRowVector
+FloatComplexRowVector::map (cmapper fcn) const
+{
+  return MArray<FloatComplex>::map<FloatComplex> (func_ptr (fcn));
+}
+
+FloatComplex
+FloatComplexRowVector::min (void) const
+{
+  octave_idx_type len = length ();
+  if (len == 0)
+    return FloatComplex (0.0);
+
+  FloatComplex res = elem (0);
+  float absres = std::abs (res);
+
+  for (octave_idx_type i = 1; i < len; i++)
+    if (std::abs (elem (i)) < absres)
+      {
+	res = elem (i);
+	absres = std::abs (res);
+      }
+
+  return res;
+}
+
+FloatComplex
+FloatComplexRowVector::max (void) const
+{
+  octave_idx_type len = length ();
+  if (len == 0)
+    return FloatComplex (0.0);
+
+  FloatComplex res = elem (0);
+  float absres = std::abs (res);
+
+  for (octave_idx_type i = 1; i < len; i++)
+    if (std::abs (elem (i)) > absres)
+      {
+	res = elem (i);
+	absres = std::abs (res);
+      }
+
+  return res;
+}
+
+// i/o
+
+std::ostream&
+operator << (std::ostream& os, const FloatComplexRowVector& a)
+{
+//  int field_width = os.precision () + 7;
+  for (octave_idx_type i = 0; i < a.length (); i++)
+    os << " " /* setw (field_width) */ << a.elem (i);
+  return os;
+}
+
+std::istream&
+operator >> (std::istream& is, FloatComplexRowVector& a)
+{
+  octave_idx_type len = a.length();
+
+  if (len < 1)
+    is.clear (std::ios::badbit);
+  else
+    {
+      FloatComplex tmp;
+      for (octave_idx_type i = 0; i < len; i++)
+        {
+          is >> tmp;
+          if (is)
+            a.elem (i) = tmp;
+          else
+            break;
+        }
+    }
+  return is;
+}
+
+// row vector by column vector -> scalar
+
+// row vector by column vector -> scalar
+
+FloatComplex
+operator * (const FloatComplexRowVector& v, const FloatColumnVector& a)
+{
+  FloatComplexColumnVector tmp (a);
+  return v * tmp;
+}
+
+FloatComplex
+operator * (const FloatComplexRowVector& v, const FloatComplexColumnVector& a)
+{
+  FloatComplex retval (0.0, 0.0);
+
+  octave_idx_type len = v.length ();
+
+  octave_idx_type a_len = a.length ();
+
+  if (len != a_len)
+    gripe_nonconformant ("operator *", len, a_len);
+  else if (len != 0)
+    F77_FUNC (xcdotu, XCDOTU) (len, v.data (), 1, a.data (), 1, retval);
+
+  return retval;
+}
+
+// other operations
+
+FloatComplexRowVector
+linspace (const FloatComplex& x1, const FloatComplex& x2, octave_idx_type n)
+{
+  FloatComplexRowVector retval;
+
+  if (n > 0)
+    {
+      retval.resize (n);
+      FloatComplex delta = (x2 - x1) / static_cast<float> (n - 1.0);
+      retval.elem (0) = x1;
+      for (octave_idx_type i = 1; i < n-1; i++)
+	retval.elem (i) = x1 +  static_cast<float> (1.0) * i * delta;
+      retval.elem (n-1) = x2;
+    }
+  else
+    {
+      retval.resize (1);
+      retval.elem (0) = x2;
+    }
+
+  return retval;
+}
+
+/*
+;;; Local Variables: ***
+;;; mode: C++ ***
+;;; End: ***
+*/