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      1 // This file is part of Eigen, a lightweight C++ template library
      2 // for linear algebra.
      3 //
      4 // Copyright (C) 2008 Gael Guennebaud <gael.guennebaud (at) inria.fr>
      5 //
      6 // This Source Code Form is subject to the terms of the Mozilla
      7 // Public License v. 2.0. If a copy of the MPL was not distributed
      8 // with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
      9 
     10 #include "main.h"
     11 
     12 void test_meta()
     13 {
     14   typedef float & FloatRef;
     15   typedef const float & ConstFloatRef;
     16 
     17   VERIFY((internal::conditional<(3<4),internal::true_type, internal::false_type>::type::value));
     18   VERIFY(( internal::is_same<float,float>::value));
     19   VERIFY((!internal::is_same<float,double>::value));
     20   VERIFY((!internal::is_same<float,float&>::value));
     21   VERIFY((!internal::is_same<float,const float&>::value));
     22 
     23   VERIFY(( internal::is_same<float,internal::remove_all<const float&>::type >::value));
     24   VERIFY(( internal::is_same<float,internal::remove_all<const float*>::type >::value));
     25   VERIFY(( internal::is_same<float,internal::remove_all<const float*&>::type >::value));
     26   VERIFY(( internal::is_same<float,internal::remove_all<float**>::type >::value));
     27   VERIFY(( internal::is_same<float,internal::remove_all<float**&>::type >::value));
     28   VERIFY(( internal::is_same<float,internal::remove_all<float* const *&>::type >::value));
     29   VERIFY(( internal::is_same<float,internal::remove_all<float* const>::type >::value));
     30 
     31   // test add_const
     32   VERIFY(( internal::is_same< internal::add_const<float>::type, const float >::value));
     33   VERIFY(( internal::is_same< internal::add_const<float*>::type, float* const>::value));
     34   VERIFY(( internal::is_same< internal::add_const<float const*>::type, float const* const>::value));
     35   VERIFY(( internal::is_same< internal::add_const<float&>::type, float& >::value));
     36 
     37   // test remove_const
     38   VERIFY(( internal::is_same< internal::remove_const<float const* const>::type, float const* >::value));
     39   VERIFY(( internal::is_same< internal::remove_const<float const*>::type, float const* >::value));
     40   VERIFY(( internal::is_same< internal::remove_const<float* const>::type, float* >::value));
     41 
     42   // test add_const_on_value_type
     43   VERIFY(( internal::is_same< internal::add_const_on_value_type<float&>::type, float const& >::value));
     44   VERIFY(( internal::is_same< internal::add_const_on_value_type<float*>::type, float const* >::value));
     45 
     46   VERIFY(( internal::is_same< internal::add_const_on_value_type<float>::type, const float >::value));
     47   VERIFY(( internal::is_same< internal::add_const_on_value_type<const float>::type, const float >::value));
     48 
     49   VERIFY(( internal::is_same< internal::add_const_on_value_type<const float* const>::type, const float* const>::value));
     50   VERIFY(( internal::is_same< internal::add_const_on_value_type<float* const>::type, const float* const>::value));
     51 
     52   VERIFY(( internal::is_same<float,internal::remove_reference<float&>::type >::value));
     53   VERIFY(( internal::is_same<const float,internal::remove_reference<const float&>::type >::value));
     54   VERIFY(( internal::is_same<float,internal::remove_pointer<float*>::type >::value));
     55   VERIFY(( internal::is_same<const float,internal::remove_pointer<const float*>::type >::value));
     56   VERIFY(( internal::is_same<float,internal::remove_pointer<float* const >::type >::value));
     57 
     58   VERIFY(internal::meta_sqrt<1>::ret == 1);
     59   #define VERIFY_META_SQRT(X) VERIFY(internal::meta_sqrt<X>::ret == int(internal::sqrt(double(X))))
     60   VERIFY_META_SQRT(2);
     61   VERIFY_META_SQRT(3);
     62   VERIFY_META_SQRT(4);
     63   VERIFY_META_SQRT(5);
     64   VERIFY_META_SQRT(6);
     65   VERIFY_META_SQRT(8);
     66   VERIFY_META_SQRT(9);
     67   VERIFY_META_SQRT(15);
     68   VERIFY_META_SQRT(16);
     69   VERIFY_META_SQRT(17);
     70   VERIFY_META_SQRT(255);
     71   VERIFY_META_SQRT(256);
     72   VERIFY_META_SQRT(257);
     73   VERIFY_META_SQRT(1023);
     74   VERIFY_META_SQRT(1024);
     75   VERIFY_META_SQRT(1025);
     76 }
     77