forgot hg add

1 files changed, 69 insertions, 0 deletions

diff --git a/test/zerosized.cpp b/test/zerosized.cpp
new file mode 100644
index 000000000..a50922fdc
--- /dev/null
+++ b/test/zerosized.cpp
@@ -0,0 +1,69 @@
+// This file is part of Eigen, a lightweight C++ template library
+// for linear algebra.
+//
+// Copyright (C) 2011 Benoit Jacob <jacob.benoit.1@gmail.com>
+//
+// 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"
+
+template<typename MatrixType> void zeroSizedMatrix()
+{
+  MatrixType t1;
+
+  if (MatrixType::SizeAtCompileTime == Dynamic)
+  {
+    if (MatrixType::RowsAtCompileTime == Dynamic)
+      VERIFY(t1.rows() == 0);
+    if (MatrixType::ColsAtCompileTime == Dynamic)
+      VERIFY(t1.cols() == 0);
+
+    if (MatrixType::RowsAtCompileTime == Dynamic && MatrixType::ColsAtCompileTime == Dynamic)
+    {
+      MatrixType t2(0, 0);
+      VERIFY(t2.rows() == 0);
+      VERIFY(t2.cols() == 0);
+    }
+  }
+}
+
+template<typename VectorType> void zeroSizedVector()
+{
+  VectorType t1;
+
+  if (VectorType::SizeAtCompileTime == Dynamic)
+  {
+    VERIFY(t1.size() == 0);
+    VectorType t2(long(0)); // long disambiguates with 0-the-null-pointer (error with gcc 4.4)
+    VERIFY(t2.size() == 0);
+  }
+}
+
+void test_zerosized()
+{
+  zeroSizedMatrix<Matrix2d>();
+  zeroSizedMatrix<Matrix3i>();
+  zeroSizedMatrix<Matrix<float, 2, Dynamic> >();
+  zeroSizedMatrix<MatrixXf>();
+  
+  zeroSizedVector<Vector2d>();
+  zeroSizedVector<Vector3i>();
+  zeroSizedVector<VectorXf>();
+}