boost/libs/qvm/test/deduce_quat_test.cpp
2021-10-05 21:37:46 +02:00

79 lines
1.7 KiB
C++

//Copyright (c) 2008-2016 Emil Dotchevski and Reverge Studios, Inc.
//Distributed under the Boost Software License, Version 1.0. (See accompanying
//file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
#ifdef BOOST_QVM_TEST_SINGLE_HEADER
# include BOOST_QVM_TEST_SINGLE_HEADER
#else
# include <boost/qvm/deduce_quat.hpp>
#endif
template <class T,class U>
struct same_type;
template <class T>
struct
same_type<T,T>
{
};
template <class A,class B,class Result>
struct
check
{
same_type<typename boost::qvm::deduce_quat2<A,B>::type,Result> a;
same_type<typename boost::qvm::deduce_quat2<B,A>::type,Result> b;
};
template <class T> struct q1;
template <class T> struct q2;
namespace
boost
{
namespace
qvm
{
template <class T>
struct
quat_traits< q1<T> >
{
typedef T scalar_type;
};
template <class T>
struct
quat_traits< q2<T> >
{
typedef T scalar_type;
};
template <class S,class Q2S>
struct
deduce_quat<q2<Q2S>,S>
{
typedef q2<S> type;
};
template <class S,class AS,class BS>
struct
deduce_quat2<q2<AS>,q2<BS>,S>
{
typedef q2<S> type;
};
}
}
int
main()
{
same_type< boost::qvm::deduce_quat< q1<int> >::type, q1<int> >();
check< q1<int>, q1<int>, q1<int> >();
same_type< boost::qvm::deduce_quat< q2<int> >::type, q2<int> >();
same_type< boost::qvm::deduce_quat< q2<int> >::type, q2<int> >();
check< q2<int>, q2<int>, q2<int> >();
check< q2<int>, q2<float>, q2<float> >();
}