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

   1 // Copyright 2008-2022 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 #ifdef BOOST_QVM_TEST_SINGLE_HEADER
   7 #   include BOOST_QVM_TEST_SINGLE_HEADER
   8 #else
   9 #   include <boost/qvm/vec_operations.hpp>
  10 #endif
  11
  12 #include <boost/qvm/vec_traits_array.hpp>
  13 #include <boost/core/lightweight_test.hpp>
  14
  15 template <class T,class U>
  16 struct same_type;
  17
  18 template <class T>
  19 struct
  20 same_type<T,T>
  21     {
  22     };
  23
  24 template <class T,class P>
  25 void
  26 test_ref_cast( T & v, P * ptr )
  27     {
  28     using namespace boost::qvm;
  29     BOOST_QVM_STATIC_ASSERT(is_vec<T>::value);
  30     BOOST_QVM_STATIC_ASSERT(vec_traits<T>::dim==3);
  31     BOOST_TEST(vec_traits<T>::template read_element<0>(v)==ptr[0]);
  32     BOOST_TEST(vec_traits<T>::template read_element<1>(v)==ptr[1]);
  33     BOOST_TEST(vec_traits<T>::template read_element<2>(v)==ptr[2]);
  34     BOOST_TEST(&vec_traits<T>::template write_element<0>(v)==&ptr[0]);
  35     BOOST_TEST(&vec_traits<T>::template write_element<1>(v)==&ptr[1]);
  36     BOOST_TEST(&vec_traits<T>::template write_element<2>(v)==&ptr[2]);
  37     BOOST_TEST(&v[0]==&ptr[0]);
  38     BOOST_TEST(&v[1]==&ptr[1]);
  39     BOOST_TEST(&v[2]==&ptr[2]);
  40     }
  41
  42 int
  43 main()
  44     {
  45     using namespace boost::qvm;
  46         {
  47         BOOST_QVM_STATIC_ASSERT(is_vec<int[3]>::value);
  48         BOOST_QVM_STATIC_ASSERT(!is_vec<int[3][3]>::value);
  49         BOOST_QVM_STATIC_ASSERT(!is_vec<int[3][3][3]>::value);
  50         BOOST_QVM_STATIC_ASSERT((vec_traits<int[3]>::dim==3));
  51         same_type<vec_traits<int[3]>::scalar_type,int>();
  52         same_type< vec<int,3>, deduce_vec<int[3]>::type >();
  53         same_type< vec<int,3>, deduce_vec<int const[3]>::type >();
  54         int arr[3] = {0,1,2};
  55         BOOST_TEST((vec_traits<int[3]>::read_element<0>(arr)==0));
  56         BOOST_TEST((vec_traits<int[3]>::read_element<1>(arr)==1));
  57         BOOST_TEST((vec_traits<int[3]>::read_element<2>(arr)==2));
  58         BOOST_TEST((vec_traits<int const[3]>::read_element<0>(arr)==0));
  59         BOOST_TEST((vec_traits<int const[3]>::read_element<1>(arr)==1));
  60         BOOST_TEST((vec_traits<int const[3]>::read_element<2>(arr)==2));
  61         BOOST_TEST((vec_traits<int[3]>::read_element_idx(0,arr)==0));
  62         BOOST_TEST((vec_traits<int[3]>::read_element_idx(1,arr)==1));
  63         BOOST_TEST((vec_traits<int[3]>::read_element_idx(2,arr)==2));
  64         BOOST_TEST((vec_traits<int const[3]>::read_element_idx(0,arr)==0));
  65         BOOST_TEST((vec_traits<int const[3]>::read_element_idx(1,arr)==1));
  66         BOOST_TEST((vec_traits<int const[3]>::read_element_idx(2,arr)==2));
  67         BOOST_TEST((&vec_traits<int[3]>::write_element<0>(arr)==&arr[0]));
  68         BOOST_TEST((&vec_traits<int[3]>::write_element<1>(arr)==&arr[1]));
  69         BOOST_TEST((&vec_traits<int[3]>::write_element<2>(arr)==&arr[2]));
  70         BOOST_TEST((&vec_traits<int[3]>::write_element_idx(0,arr)==&arr[0]));
  71         BOOST_TEST((&vec_traits<int[3]>::write_element_idx(1,arr)==&arr[1]));
  72         BOOST_TEST((&vec_traits<int[3]>::write_element_idx(2,arr)==&arr[2]));
  73         }
  74         {
  75         int arr[42] = {0};
  76         int * ptr=arr+5;
  77         ptr[0]=42;
  78         ptr[1]=43;
  79         ptr[2]=44;
  80         test_ref_cast(ptr_vref<3>(ptr),ptr);
  81         int v[3] = {1,1,1};
  82         ptr_vref<3>(ptr) += vref(v);
  83         BOOST_TEST(ptr[0]==43);
  84         BOOST_TEST(ptr[1]==44);
  85         BOOST_TEST(ptr[2]==45);
  86         }
  87     return boost::report_errors();
  88     }