text: // 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>
  //
  // This Source Code Form is subject to the terms of the Mozilla
  // Public License v. 2.0. If a copy of the MPL was not distributed
  // with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
  
  #include "main.h"
  
  void test_eigen2_meta()
  {
    typedef float & FloatRef;
    typedef const float & ConstFloatRef;
    
    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<const float&>::type >::ret));
    VERIFY(( ei_is_same_type<float&,ei_unconst<ConstFloatRef>::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) 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);
  }
  