--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/OPERATORS/op-s-sm.cc	Fri Feb 25 19:55:28 2005 +0000
@@ -0,0 +1,159 @@
+/*
+
+Copyright (C) 2004 David Bateman
+Copyright (C) 1998-2004 Andy Adler
+
+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 this program; see the file COPYING.  If not, write to the Free
+Software Foundation, 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+*/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "gripes.h"
+#include "oct-obj.h"
+#include "ov.h"
+#include "ov-typeinfo.h"
+#include "ov-scalar.h"
+#include "ops.h"
+#include "xpow.h"
+
+#include "sparse-xpow.h"
+#include "sparse-xdiv.h"
+#include "ov-re-sparse.h"
+
+// scalar by sparse matrix ops.
+
+DEFBINOP_OP (add, scalar, sparse_matrix, +)
+DEFBINOP_OP (sub, scalar, sparse_matrix, -)
+DEFBINOP_OP (mul, scalar, sparse_matrix, *)
+
+DEFBINOP (div, scalar, sparse_matrix)
+{
+  CAST_BINOP_ARGS (const octave_scalar&, const octave_sparse_matrix&);
+
+  Matrix m1 = Matrix (1, 1, v1.double_value ());
+  SparseMatrix m2 = v2.sparse_matrix_value ();
+
+  return xdiv (m1, m2);
+}
+
+DEFBINOP (pow, scalar, sparse_matrix)
+{
+  CAST_BINOP_ARGS (const octave_scalar&, const octave_sparse_matrix&);
+  return xpow (v1.scalar_value (), v2.matrix_value ());
+}
+
+DEFBINOP (ldiv, scalar, sparse_matrix)
+{
+  CAST_BINOP_ARGS (const octave_scalar&, const octave_sparse_matrix&);
+
+  double d = v1.double_value ();
+  octave_value retval;
+
+  if (d == 0.0)
+    {
+      gripe_divide_by_zero ();
+
+      retval = octave_value (v2.matrix_value () / d);
+    }
+  else
+    retval = octave_value (v2.sparse_matrix_value () / d);
+
+  return retval;
+}
+
+DEFBINOP_FN (lt, scalar, sparse_matrix, mx_el_lt)
+DEFBINOP_FN (le, scalar, sparse_matrix, mx_el_le)
+DEFBINOP_FN (eq, scalar, sparse_matrix, mx_el_eq)
+DEFBINOP_FN (ge, scalar, sparse_matrix, mx_el_ge)
+DEFBINOP_FN (gt, scalar, sparse_matrix, mx_el_gt)
+DEFBINOP_FN (ne, scalar, sparse_matrix, mx_el_ne)
+
+DEFBINOP_OP (el_mul, scalar, sparse_matrix, *)
+DEFBINOP_FN (el_div, scalar, sparse_matrix, x_el_div)
+DEFBINOP_FN (el_pow, scalar, sparse_matrix, elem_xpow)
+
+DEFBINOP (el_ldiv, scalar, sparse_matrix)
+{
+  CAST_BINOP_ARGS (const octave_scalar&, const octave_sparse_matrix&);
+
+  double d = v1.double_value ();
+  octave_value retval;
+
+  if (d == 0.0)
+    {
+      gripe_divide_by_zero ();
+
+      retval = octave_value (v2.matrix_value () / d);
+    }
+  else
+    retval = octave_value (v2.sparse_matrix_value () / d);
+
+  return retval;
+}
+
+DEFBINOP_FN (el_and, scalar, sparse_matrix, mx_el_and)
+DEFBINOP_FN (el_or,  scalar, sparse_matrix, mx_el_or)
+
+DEFCATOP (s_sm, scalar, sparse_matrix)
+{
+  CAST_BINOP_ARGS (octave_scalar&, const octave_sparse_matrix&);
+  SparseMatrix tmp (1, 1, v1.scalar_value ());
+  return octave_value (tmp. concat (v2.sparse_matrix_value (), ra_idx));
+}
+
+DEFCONV (sparse_matrix_conv, scalar, sparse_matrix)
+{
+  CAST_CONV_ARG (const octave_scalar&);
+
+  return new octave_sparse_matrix (SparseMatrix (v.matrix_value ()));
+}
+
+void
+install_s_sm_ops (void)
+{
+  INSTALL_BINOP (op_add, octave_scalar, octave_sparse_matrix, add);
+  INSTALL_BINOP (op_sub, octave_scalar, octave_sparse_matrix, sub);
+  INSTALL_BINOP (op_mul, octave_scalar, octave_sparse_matrix, mul);
+  INSTALL_BINOP (op_div, octave_scalar, octave_sparse_matrix, div);
+  INSTALL_BINOP (op_pow, octave_scalar, octave_sparse_matrix, pow);
+  INSTALL_BINOP (op_ldiv, octave_scalar, octave_sparse_matrix, ldiv);
+  INSTALL_BINOP (op_lt, octave_scalar, octave_sparse_matrix, lt);
+  INSTALL_BINOP (op_le, octave_scalar, octave_sparse_matrix, le);
+  INSTALL_BINOP (op_eq, octave_scalar, octave_sparse_matrix, eq);
+  INSTALL_BINOP (op_ge, octave_scalar, octave_sparse_matrix, ge);
+  INSTALL_BINOP (op_gt, octave_scalar, octave_sparse_matrix, gt);
+  INSTALL_BINOP (op_ne, octave_scalar, octave_sparse_matrix, ne);
+  INSTALL_BINOP (op_el_mul, octave_scalar, octave_sparse_matrix, el_mul);
+  INSTALL_BINOP (op_el_div, octave_scalar, octave_sparse_matrix, el_div);
+  INSTALL_BINOP (op_el_pow, octave_scalar, octave_sparse_matrix, el_pow);
+  INSTALL_BINOP (op_el_ldiv, octave_scalar, octave_sparse_matrix, el_ldiv);
+  INSTALL_BINOP (op_el_and, octave_scalar, octave_sparse_matrix, el_and);
+  INSTALL_BINOP (op_el_or, octave_scalar, octave_sparse_matrix, el_or);
+
+  INSTALL_CATOP (octave_scalar, octave_sparse_matrix, s_sm);
+
+  INSTALL_ASSIGNCONV (octave_scalar, octave_sparse_matrix, octave_matrix);
+
+  INSTALL_WIDENOP (octave_scalar, octave_sparse_matrix, sparse_matrix_conv);
+}
+
+/*
+;;; Local Variables: ***
+;;; mode: C++ ***
+;;; End: ***
+*/