From 0be89a4796543a7e7b8c244d3f1aabcf672cf114 Mon Sep 17 00:00:00 2001
From: Gael Guennebaud <g.gael@free.fr>
Date: Thu, 5 Mar 2009 10:25:22 +0000
Subject: big addons: * add Homogeneous expression for vector and set of
 vectors (aka matrix)   => the next step will be to overload operator* * add
 homogeneous normalization (again for vector and set of vectors) * add a
 Replicate expression (with uni-directional replication   facilities) => for
 all of them I'll add examples once we agree on the API * fix gcc-4.4 warnings
 * rename reverse.cpp array_reverse.cpp

---
 test/array_replicate.cpp | 86 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 86 insertions(+)
 create mode 100644 test/array_replicate.cpp

(limited to 'test/array_replicate.cpp')

diff --git a/test/array_replicate.cpp b/test/array_replicate.cpp
new file mode 100644
index 000000000..e8d0f33cb
--- /dev/null
+++ b/test/array_replicate.cpp
@@ -0,0 +1,86 @@
+// This file is part of Eigen, a lightweight C++ template library
+// for linear algebra. Eigen itself is part of the KDE project.
+//
+// Copyright (C) 2009 Gael Guennebaud <g.gael@free.fr>
+//
+// Eigen is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 3 of the License, or (at your option) any later version.
+//
+// Alternatively, 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.
+//
+// Eigen 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 Lesser General Public License or the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License and a copy of the GNU General Public License along with
+// Eigen. If not, see <http://www.gnu.org/licenses/>.
+
+#include "main.h"
+#include <Eigen/Array>
+
+template<typename MatrixType> void replicate(const MatrixType& m)
+{
+  /* this test covers the following files:
+     Replicate.cpp
+  */
+
+  typedef typename MatrixType::Scalar Scalar;
+  typedef typename NumTraits<Scalar>::Real RealScalar;
+  typedef Matrix<Scalar, MatrixType::RowsAtCompileTime, 1> VectorType;
+  typedef Matrix<Scalar, Dynamic, Dynamic> MatrixX;
+  typedef Matrix<Scalar, Dynamic, 1> VectorX;
+
+  int rows = m.rows();
+  int cols = m.cols();
+
+  MatrixType m1 = MatrixType::Random(rows, cols),
+             m2 = MatrixType::Random(rows, cols);
+  
+  VectorType v1 = VectorType::Random(rows);
+  
+  MatrixX x1, x2;
+  VectorX vx1;
+
+  int  f1 = ei_random<int>(1,10),
+       f2 = ei_random<int>(1,10);
+
+  x1.resize(rows*f1,cols*f2);
+  for(int j=0; j<f2; j++)
+  for(int i=0; i<f1; i++)
+    x1.block(i*rows,j*cols,rows,cols) = m1;
+  VERIFY_IS_APPROX(x1, m1.replicate(f1,f2));
+  
+  x2.resize(2*rows,3*cols);
+  x2 << m2, m2, m2,
+        m2, m2, m2;
+  VERIFY_IS_APPROX(x2, (m2.template replicate<2,3>()));
+  
+  x2.resize(rows,f1);
+  for (int j=0; j<f1; ++j)
+    x2.col(j) = v1;
+  VERIFY_IS_APPROX(x2, v1.rowwise().replicate(f1));
+  
+  vx1.resize(rows*f2);
+  for (int j=0; j<f2; ++j)
+    vx1.segment(j*rows,rows) = v1;
+  VERIFY_IS_APPROX(vx1, v1.colwise().replicate(f2));
+}
+
+void test_array_replicate()
+{
+  for(int i = 0; i < g_repeat; i++) {
+    CALL_SUBTEST( replicate(Matrix<float, 1, 1>()) );
+    CALL_SUBTEST( replicate(Vector2f()) );
+    CALL_SUBTEST( replicate(Vector3d()) );
+    CALL_SUBTEST( replicate(Vector4f()) );
+    CALL_SUBTEST( replicate(VectorXf(16)) );
+    CALL_SUBTEST( replicate(VectorXcd(10)) );
+  }
+}
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