1 files changed, 134 insertions, 0 deletions
diff --git a/gsl-1.9/matrix/rowcol_source.c b/gsl-1.9/matrix/rowcol_source.c
new file mode 100644
index 0000000..bf76c07
--- /dev/null
+++ b/gsl-1.9/matrix/rowcol_source.c
@@ -0,0 +1,134 @@
+/* matrix/rowcol_source.c
+ * 
+ * Copyright (C) 1996, 1997, 1998, 1999, 2000 Gerard Jungman, Brian Gough
+ * 
+ * This program 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 of the License, or (at
+ * your option) any later version.
+ * 
+ * This program 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; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+QUALIFIED_VIEW(_gsl_vector,view)
+FUNCTION (gsl_matrix, row) (QUALIFIED_TYPE(gsl_matrix) * m, const size_t i)
+{
+  QUALIFIED_VIEW(_gsl_vector,view) view = NULL_VECTOR_VIEW;
+  
+  if (i >= m->size1)
+    {
+      GSL_ERROR_VAL ("row index is out of range", GSL_EINVAL, view);
+    }
+  
+  {
+    TYPE(gsl_vector) v = NULL_VECTOR;
+    
+    v.data = m->data + i * MULTIPLICITY * m->tda;
+    v.size = m->size2;
+    v.stride = 1;
+    v.block = m->block;
+    v.owner = 0;
+    
+    view.vector = v;
+    return view;
+  }
+}
+
+QUALIFIED_VIEW(_gsl_vector,view)
+FUNCTION (gsl_matrix, column) (QUALIFIED_TYPE(gsl_matrix) * m, const size_t j)
+{
+  QUALIFIED_VIEW(_gsl_vector,view) view = NULL_VECTOR_VIEW;
+  
+  if (j >= m->size2)
+    {
+      GSL_ERROR_VAL ("column index is out of range", GSL_EINVAL, view);
+    }
+
+  {
+    TYPE(gsl_vector) v = NULL_VECTOR;
+    
+    v.data = m->data + j * MULTIPLICITY;
+    v.size = m->size1;
+    v.stride = m->tda;
+    v.block = m->block;
+    v.owner = 0;
+
+    view.vector = v;
+    return view;
+  }
+}
+
+QUALIFIED_VIEW(_gsl_vector,view)
+FUNCTION (gsl_matrix, diagonal) (QUALIFIED_TYPE(gsl_matrix) * m)
+{
+  QUALIFIED_VIEW(_gsl_vector,view) view = NULL_VECTOR_VIEW;
+
+  TYPE(gsl_vector) v = NULL_VECTOR;
+  v.data = m->data;
+  v.size = GSL_MIN(m->size1,m->size2);
+  v.stride = m->tda + 1;
+  v.block = m->block;
+  v.owner = 0;
+
+  view.vector = v;
+  return view;
+}
+
+QUALIFIED_VIEW(_gsl_vector,view)
+FUNCTION (gsl_matrix, subdiagonal) (QUALIFIED_TYPE(gsl_matrix) * m,
+                                    const size_t k)
+{
+  QUALIFIED_VIEW(_gsl_vector,view) view = NULL_VECTOR_VIEW;
+  
+  if (k >= m->size1)
+    {
+      GSL_ERROR_VAL ("subdiagonal index is out of range", GSL_EINVAL, view);
+    }
+
+  {
+    TYPE(gsl_vector) v = NULL_VECTOR;
+    
+    v.data = m->data + k * MULTIPLICITY * m->tda;
+    v.size = GSL_MIN(m->size1 - k, m->size2);
+    v.stride = m->tda + 1;
+    v.block = m->block;
+    v.owner = 0;
+    
+    view.vector = v;
+    return view;
+  }
+}
+
+QUALIFIED_VIEW(_gsl_vector,view)
+FUNCTION (gsl_matrix, superdiagonal) (QUALIFIED_TYPE(gsl_matrix) * m,
+                                      const size_t k)
+{
+  QUALIFIED_VIEW(_gsl_vector,view) view = NULL_VECTOR_VIEW;
+
+
+  if (k >= m->size2)
+    {
+      GSL_ERROR_VAL ("column index is out of range", GSL_EINVAL, view);
+    }
+
+  {
+    TYPE(gsl_vector) v = NULL_VECTOR;
+    
+    v.data = m->data + k * MULTIPLICITY;
+    v.size = GSL_MIN(m->size1, m->size2 - k);
+    v.stride = m->tda + 1;
+    v.block = m->block;
+    v.owner = 0;
+
+    view.vector = v;
+    return view;
+  }
+}
+