// 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
#else
#   include <boost/qvm/vec_operations.hpp>
#endif

#include <boost/qvm/vec_traits_array.hpp>
#include <boost/core/lightweight_test.hpp>

template <class T,class U>
struct same_type;

template <class T>
struct
same_type<T,T>
    {
    };

template <class T,class P>
void
test_ref_cast( T & v, P * ptr )
    {
    using namespace boost::qvm;
    BOOST_QVM_STATIC_ASSERT(is_vec<T>::value);
    BOOST_QVM_STATIC_ASSERT(vec_traits<T>::dim==3);
    BOOST_TEST_EQ(vec_traits<T>::template read_element<0>(v), ptr[0]);
    BOOST_TEST_EQ(vec_traits<T>::template read_element<1>(v), ptr[1]);
    BOOST_TEST_EQ(vec_traits<T>::template read_element<2>(v), ptr[2]);
    BOOST_TEST_EQ(&vec_traits<T>::template write_element<0>(v), &ptr[0]);
    BOOST_TEST_EQ(&vec_traits<T>::template write_element<1>(v), &ptr[1]);
    BOOST_TEST_EQ(&vec_traits<T>::template write_element<2>(v), &ptr[2]);
    BOOST_TEST_EQ(&v[0], &ptr[0]);
    BOOST_TEST_EQ(&v[1], &ptr[1]);
    BOOST_TEST_EQ(&v[2], &ptr[2]);
    }

int
main()
    {
    using namespace boost::qvm;
        {
        BOOST_QVM_STATIC_ASSERT(is_vec<int[3]>::value);
        BOOST_QVM_STATIC_ASSERT(!is_vec<int[3][3]>::value);
        BOOST_QVM_STATIC_ASSERT(!is_vec<int[3][3][3]>::value);
        BOOST_QVM_STATIC_ASSERT((vec_traits<int[3]>::dim==3));
        same_type<vec_traits<int[3]>::scalar_type,int>();
        same_type< vec<int,3>, deduce_vec<int[3]>::type >();
        same_type< vec<int,3>, deduce_vec<int const[3]>::type >();
        int arr[3] = {0,1,2};
        BOOST_TEST_EQ((vec_traits<int[3]>::read_element<0>(arr)), 0);
        BOOST_TEST_EQ((vec_traits<int[3]>::read_element<1>(arr)), 1);
        BOOST_TEST_EQ((vec_traits<int[3]>::read_element<2>(arr)), 2);
        BOOST_TEST_EQ((vec_traits<int const[3]>::read_element<0>(arr)), 0);
        BOOST_TEST_EQ((vec_traits<int const[3]>::read_element<1>(arr)), 1);
        BOOST_TEST_EQ((vec_traits<int const[3]>::read_element<2>(arr)), 2);
        BOOST_TEST_EQ((vec_traits<int[3]>::read_element_idx(0,arr)), 0);
        BOOST_TEST_EQ((vec_traits<int[3]>::read_element_idx(1,arr)), 1);
        BOOST_TEST_EQ((vec_traits<int[3]>::read_element_idx(2,arr)), 2);
        BOOST_TEST_EQ((vec_traits<int const[3]>::read_element_idx(0,arr)), 0);
        BOOST_TEST_EQ((vec_traits<int const[3]>::read_element_idx(1,arr)), 1);
        BOOST_TEST_EQ((vec_traits<int const[3]>::read_element_idx(2,arr)), 2);
        BOOST_TEST_EQ((&vec_traits<int[3]>::write_element<0>(arr)), &arr[0]);
        BOOST_TEST_EQ((&vec_traits<int[3]>::write_element<1>(arr)), &arr[1]);
        BOOST_TEST_EQ((&vec_traits<int[3]>::write_element<2>(arr)), &arr[2]);
        BOOST_TEST_EQ((&vec_traits<int[3]>::write_element_idx(0,arr)), &arr[0]);
        BOOST_TEST_EQ((&vec_traits<int[3]>::write_element_idx(1,arr)), &arr[1]);
        BOOST_TEST_EQ((&vec_traits<int[3]>::write_element_idx(2,arr)), &arr[2]);
        }
        {
        int arr[42] = {0};
        int * ptr=arr+5;
        ptr[0]=42;
        ptr[1]=43;
        ptr[2]=44;
        test_ref_cast(ptr_vref<3>(ptr),ptr);
        int v[3] = {1,1,1};
        ptr_vref<3>(ptr) += vref(v);
        BOOST_TEST_EQ(ptr[0], 43);
        BOOST_TEST_EQ(ptr[1], 44);
        BOOST_TEST_EQ(ptr[2], 45);
        }
    return boost::report_errors();
    }