ceph/src/boost/libs/qvm/test/vec_traits_array_test.cpp

   1 //Copyright (c) 2008-2016 Emil Dotchevski and Reverge Studios, Inc.
   2
   3 //Distributed under the Boost Software License, Version 1.0. (See accompanying
   4 //file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   5
   6 #include <boost/qvm/vec_traits_array.hpp>
   7 #include <boost/qvm/vec_operations.hpp>
   8 #include <boost/detail/lightweight_test.hpp>
   9
  10 template <class T,class U>
  11 struct same_type;
  12
  13 template <class T>
  14 struct
  15 same_type<T,T>
  16     {
  17     };
  18
  19 template <class T,class P>
  20 void
  21 test_ref_cast( T & v, P * ptr )
  22     {
  23     using namespace boost::qvm;
  24     BOOST_QVM_STATIC_ASSERT(is_vec<T>::value);
  25     BOOST_QVM_STATIC_ASSERT(vec_traits<T>::dim==3);
  26     BOOST_TEST(vec_traits<T>::template read_element<0>(v)==ptr[0]);
  27     BOOST_TEST(vec_traits<T>::template read_element<1>(v)==ptr[1]);
  28     BOOST_TEST(vec_traits<T>::template read_element<2>(v)==ptr[2]);
  29     BOOST_TEST(&vec_traits<T>::template write_element<0>(v)==&ptr[0]);
  30     BOOST_TEST(&vec_traits<T>::template write_element<1>(v)==&ptr[1]);
  31     BOOST_TEST(&vec_traits<T>::template write_element<2>(v)==&ptr[2]);
  32     BOOST_TEST(&v[0]==&ptr[0]);
  33     BOOST_TEST(&v[1]==&ptr[1]);
  34     BOOST_TEST(&v[2]==&ptr[2]);
  35     }
  36
  37 int
  38 main()
  39     {
  40     using namespace boost::qvm;
  41         {
  42         BOOST_QVM_STATIC_ASSERT(is_vec<int[3]>::value);
  43         BOOST_QVM_STATIC_ASSERT(!is_vec<int[3][3]>::value);
  44         BOOST_QVM_STATIC_ASSERT(!is_vec<int[3][3][3]>::value);
  45         BOOST_QVM_STATIC_ASSERT((vec_traits<int[3]>::dim==3));
  46         same_type<vec_traits<int[3]>::scalar_type,int>();
  47         same_type< vec<int,3>, deduce_vec<int[3]>::type >();
  48         same_type< vec<int,3>, deduce_vec<int const[3]>::type >();
  49         int arr[3] = {0,1,2};
  50         BOOST_TEST((vec_traits<int[3]>::read_element<0>(arr)==0));
  51         BOOST_TEST((vec_traits<int[3]>::read_element<1>(arr)==1));
  52         BOOST_TEST((vec_traits<int[3]>::read_element<2>(arr)==2));
  53         BOOST_TEST((vec_traits<int const[3]>::read_element<0>(arr)==0));
  54         BOOST_TEST((vec_traits<int const[3]>::read_element<1>(arr)==1));
  55         BOOST_TEST((vec_traits<int const[3]>::read_element<2>(arr)==2));
  56         BOOST_TEST((vec_traits<int[3]>::read_element_idx(0,arr)==0));
  57         BOOST_TEST((vec_traits<int[3]>::read_element_idx(1,arr)==1));
  58         BOOST_TEST((vec_traits<int[3]>::read_element_idx(2,arr)==2));
  59         BOOST_TEST((vec_traits<int const[3]>::read_element_idx(0,arr)==0));
  60         BOOST_TEST((vec_traits<int const[3]>::read_element_idx(1,arr)==1));
  61         BOOST_TEST((vec_traits<int const[3]>::read_element_idx(2,arr)==2));
  62         BOOST_TEST((&vec_traits<int[3]>::write_element<0>(arr)==&arr[0]));
  63         BOOST_TEST((&vec_traits<int[3]>::write_element<1>(arr)==&arr[1]));
  64         BOOST_TEST((&vec_traits<int[3]>::write_element<2>(arr)==&arr[2]));
  65         BOOST_TEST((&vec_traits<int[3]>::write_element_idx(0,arr)==&arr[0]));
  66         BOOST_TEST((&vec_traits<int[3]>::write_element_idx(1,arr)==&arr[1]));
  67         BOOST_TEST((&vec_traits<int[3]>::write_element_idx(2,arr)==&arr[2]));
  68         }
  69         {
  70         int arr[42] = {0};
  71         int * ptr=arr+5;
  72         ptr[0]=42;
  73         ptr[1]=43;
  74         ptr[2]=44;
  75         test_ref_cast(ptr_vref<3>(ptr),ptr);
  76         int v[3] = {1,1,1};
  77         ptr_vref<3>(ptr) += vref(v);
  78         BOOST_TEST(ptr[0]==43);
  79         BOOST_TEST(ptr[1]==44);
  80         BOOST_TEST(ptr[2]==45);
  81         }
  82     return boost::report_errors();
  83     }