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
test_ref_cast(T & v,P * ptr)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
main()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     }
84