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#ifndef BOOST_QVM_EF9152E42E4711DFB699737156D89593
7#define BOOST_QVM_EF9152E42E4711DFB699737156D89593
8
9#if defined(BOOST_QVM_TEST_SINGLE_HEADER) && !defined(BOOST_QVM_TEST_SINGLE_HEADER)
10# define BOOST_QVM_TEST_REF_WRITE_ELEMENT
11#endif
12
13#include <boost/qvm/quat_traits_defaults.hpp>
14#include <boost/qvm/deduce_quat.hpp>
15#include <boost/qvm/assert.hpp>
16#include "test_qvm.hpp"
17
18namespace
19test_qvm
20 {
21 template <class Tag,class T=float>
22 struct
23 quaternion
24 {
25 T a[4];
26 mutable T b[4];
27
28 explicit
29 quaternion( T start=T(0), T step=T(0) )
30 {
31 for( int i=0; i!=4; ++i,start+=step )
32 a[i]=b[i]=start;
33 }
34 };
35
36 template <class Tag1,class T1,class Tag2,class T2>
37 void
38 dump_ab( quaternion<Tag1,T1> const & a, quaternion<Tag2,T2> const & b )
39 {
40 detail::dump_ab(a.a,b.a);
41 }
42 }
43
44namespace boost { namespace qvm {
45
46#ifdef BOOST_QVM_TEST_REF_WRITE_ELEMENT
47
48template <class Tag,class T>
49struct
50quat_traits< test_qvm::quaternion<Tag,T> >:
51 quat_traits_defaults<test_qvm::quaternion<Tag,T>,T>
52 {
53 typedef quat_traits_defaults<test_qvm::quaternion<Tag,T>,T> base;
54
55 template <int I>
56 static
57 typename base::scalar_type &
58 write_element( typename base::quat_type & m )
59 {
60 BOOST_QVM_STATIC_ASSERT(I>=0);
61 BOOST_QVM_STATIC_ASSERT(I<4);
62 return m.a[I];
63 }
64 };
65
66#else
67
68template <class Tag,class T>
69struct
70quat_traits< test_qvm::quaternion<Tag,T> >
71 {
72 typedef test_qvm::quaternion<Tag,T> this_quaternion;
73 typedef T scalar_type;
74
75 template <int I>
76 static
77 T
78 read_element( this_quaternion const & v )
79 {
80 BOOST_QVM_STATIC_ASSERT(I>=0);
81 BOOST_QVM_STATIC_ASSERT(I<4);
82 return v.a[I];
83 }
84
85 template <int I>
86 static
87 void
88 write_element( this_quaternion & v, T s )
89 {
90 BOOST_QVM_STATIC_ASSERT(I>=0);
91 BOOST_QVM_STATIC_ASSERT(I<4);
92 v.a[I] = s;
93 }
94
95 static
96 T
97 read_element_idx( int i, this_quaternion const & v )
98 {
99 BOOST_QVM_ASSERT(i>=0);
100 BOOST_QVM_ASSERT(i<4);
101 return v.a[i];
102 }
103
104 static
105 void
106 write_element_idx( int i, this_quaternion & v, T s )
107 {
108 BOOST_QVM_ASSERT(i>=0);
109 BOOST_QVM_ASSERT(i<4);
110 v.a[i] = s;
111 }
112 };
113
114#endif
115
116 template <class Tag,class T>
117 struct
118 deduce_quat2<test_qvm::quaternion<Tag,T>,test_qvm::quaternion<Tag,T> >
119 {
120 typedef test_qvm::quaternion<Tag,T> type;
121 };
122
123} }
124
125namespace
126 {
127 struct Q1;
128 struct Q2;
129 struct Q3;
130 }
131
132#endif
133

source code of boost/libs/qvm/test/test_qvm_quaternion.hpp