From ba100998bfab8fcf325451be050cabb52f641f46 Mon Sep 17 00:00:00 2001
From: Gael Guennebaud <g.gael@free.fr>
Date: Sun, 24 Aug 2008 15:15:32 +0000
Subject: * split Meta.h to Meta.h (generic meta programming) and XprHelper.h
 (relates to eigen mechanism) * added a meta.cpp unit test *
 EIGEN_TUNE_FOR_L2_CACHE_SIZE now represents L2 block size in Bytes (whence
 the ei_meta_sqrt...) * added a CustomizeEigen.dox page * added a TOC to
 QuickStartGuide.dox

---
 test/meta.cpp | 71 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 71 insertions(+)
 create mode 100644 test/meta.cpp

(limited to 'test/meta.cpp')

diff --git a/test/meta.cpp b/test/meta.cpp
new file mode 100644
index 000000000..21cb522be
--- /dev/null
+++ b/test/meta.cpp
@@ -0,0 +1,71 @@
+// This file is part of Eigen, a lightweight C++ template library
+// for linear algebra. Eigen itself is part of the KDE project.
+//
+// Copyright (C) 2008 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"
+
+void test_meta()
+{
+  VERIFY((ei_meta_if<(3<4),ei_meta_true, ei_meta_false>::ret::ret));
+  VERIFY(( ei_is_same_type<float,float>::ret));
+  VERIFY((!ei_is_same_type<float,double>::ret));
+  VERIFY((!ei_is_same_type<float,float&>::ret));
+  VERIFY((!ei_is_same_type<float,const float&>::ret));
+  
+  VERIFY(( ei_is_same_type<float,ei_cleantype<const float&>::type >::ret));
+  VERIFY(( ei_is_same_type<float,ei_cleantype<const float*>::type >::ret));
+  VERIFY(( ei_is_same_type<float,ei_cleantype<const float*&>::type >::ret));
+  VERIFY(( ei_is_same_type<float,ei_cleantype<float**>::type >::ret));
+  VERIFY(( ei_is_same_type<float,ei_cleantype<float**&>::type >::ret));
+  VERIFY(( ei_is_same_type<float,ei_cleantype<float* const *&>::type >::ret));
+  VERIFY(( ei_is_same_type<float,ei_cleantype<float* const>::type >::ret));
+  
+  VERIFY(( ei_is_same_type<float&,ei_unconst<const float&>::type >::ret));
+  VERIFY(( ei_is_same_type<float&,ei_unconst<float&>::type >::ret));
+  VERIFY(( ei_is_same_type<float,ei_unref<float&>::type >::ret));
+  VERIFY(( ei_is_same_type<const float,ei_unref<const float&>::type >::ret));
+  VERIFY(( ei_is_same_type<float,ei_unpointer<float*>::type >::ret));
+  VERIFY(( ei_is_same_type<const float,ei_unpointer<const float*>::type >::ret));
+  VERIFY(( ei_is_same_type<float,ei_unpointer<float* const >::type >::ret));
+  
+  VERIFY(ei_meta_sqrt<1>::ret == 1);
+  #define VERIFY_META_SQRT(X) \
+    std::cerr << ei_meta_sqrt<X>::ret << " == " <<  int(ei_sqrt(double(X))) << "\n"; \
+    VERIFY(ei_meta_sqrt<X>::ret == int(ei_sqrt(double(X))))
+  VERIFY_META_SQRT(2);
+  VERIFY_META_SQRT(3);
+  VERIFY_META_SQRT(4);
+  VERIFY_META_SQRT(5);
+  VERIFY_META_SQRT(6);
+  VERIFY_META_SQRT(8);
+  VERIFY_META_SQRT(9);
+  VERIFY_META_SQRT(15);
+  VERIFY_META_SQRT(16);
+  VERIFY_META_SQRT(17);
+  VERIFY_META_SQRT(255);
+  VERIFY_META_SQRT(256);
+  VERIFY_META_SQRT(257);
+  VERIFY_META_SQRT(1023);
+  VERIFY_META_SQRT(1024);
+  VERIFY_META_SQRT(1025);
+}
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