qvm/test/swizzle3_test4.cpp

// Copyright 2008-2024 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
#   ifdef BOOST_QVM_TEST_SINGLE_HEADER_SWIZZLE
#       include BOOST_QVM_TEST_SINGLE_HEADER_SWIZZLE
#   endif
#else
#   include <boost/qvm/vec_traits.hpp>
#   include <boost/qvm/swizzle3.hpp>
#endif

#include <boost/core/lightweight_test.hpp>

template <int D> struct my_vec { };
int called=0;

namespace
boost
    {
    namespace
    qvm
        {
        void
        ZZZ(...)
            {
            BOOST_TEST(0);
            }
        void
        XXW(...)
            {
            ++called;
            }
        template <int D>
        struct
        vec_traits< my_vec<D> >
            {
            typedef int scalar_type;
            static int const dim=D;
            template <int I> static int read_element( my_vec<D> const & );
            template <int I> static int & write_element( my_vec<D> & );
            };
        }
    }

int
main()
    {
    using namespace boost::qvm;
    ZZZ(my_vec<3>());
    XXW(my_vec<3>());
    BOOST_TEST_EQ(called, 1);
    return boost::report_errors();
    }