From 44861dcbfeee041223c4aac1ee075e92fa4daa01 Mon Sep 17 00:00:00 2001
From: Stanislaw Halik <sthalik@misaki.pl>
Date: Sun, 18 Sep 2016 12:42:15 +0200
Subject: update

---
 eigen/bench/btl/generic_bench/init/init_matrix.hh | 64 +++++++++++++++++++++++
 1 file changed, 64 insertions(+)
 create mode 100644 eigen/bench/btl/generic_bench/init/init_matrix.hh

(limited to 'eigen/bench/btl/generic_bench/init/init_matrix.hh')

diff --git a/eigen/bench/btl/generic_bench/init/init_matrix.hh b/eigen/bench/btl/generic_bench/init/init_matrix.hh
new file mode 100644
index 0000000..67cbd20
--- /dev/null
+++ b/eigen/bench/btl/generic_bench/init/init_matrix.hh
@@ -0,0 +1,64 @@
+//=====================================================
+// File   :  init_matrix.hh
+// Author :  L. Plagne <laurent.plagne@edf.fr)>
+// Copyright (C) EDF R&D,  lun sep 30 14:23:19 CEST 2002
+//=====================================================
+//
+// 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+//
+#ifndef INIT_MATRIX_HH
+#define INIT_MATRIX_HH
+
+// The Vector class must satisfy the following part of STL vector concept :
+//            resize() method
+//            [] operator for setting element
+//            value_type defined
+template<double init_function(int,int), class Vector>
+BTL_DONT_INLINE void init_row(Vector & X, int size, int row){
+
+  X.resize(size);
+
+  for (int j=0;j<X.size();j++){
+    X[j]=typename Vector::value_type(init_function(row,j));
+  }
+}
+
+
+// Matrix is a Vector of Vector
+// The Matrix class must satisfy the following part of STL vector concept :
+//            resize() method
+//            [] operator for setting rows
+template<double init_function(int,int),class Vector>
+BTL_DONT_INLINE void init_matrix(Vector &  A, int size){
+  A.resize(size);
+  for (int row=0; row<A.size() ; row++){
+    init_row<init_function>(A[row],size,row);
+  }
+}
+
+template<double init_function(int,int),class Matrix>
+BTL_DONT_INLINE void init_matrix_symm(Matrix&  A, int size){
+  A.resize(size);
+  for (int row=0; row<A.size() ; row++)
+    A[row].resize(size);
+  for (int row=0; row<A.size() ; row++){
+    A[row][row] = init_function(row,row);
+    for (int col=0; col<row ; col++){
+      double x = init_function(row,col);
+      A[row][col] = A[col][row] = x;
+    }
+  }
+}
+
+#endif
-- 
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