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

#include "test_qvm_vector.hpp"
#include "gold.hpp"

namespace
    {
    template <class T,class U> struct same_type_tester;
    template <class T> struct same_type_tester<T,T> { };
    template <class T,class U> void test_same_type( T, U ) { same_type_tester<T,U>(); }

    template <int Dim>
    void
    test()
        {
        using namespace boost::qvm::sfinae;
        test_qvm::vector<V1,Dim> const x(42,2);
            {
            test_qvm::vector<V1,Dim> const y(42,1);
            test_same_type(x,x-y);
            test_qvm::vector<V1,Dim> r=x-y;
            test_qvm::subtract_v(r.b,x.b,y.b);
            BOOST_QVM_TEST_EQ(r.a,r.b);
            }
            {
            test_qvm::vector<V1,Dim> const y(42,1);
            test_qvm::vector<V2,Dim> r=vref(x)-y;
            test_qvm::subtract_v(r.b,x.b,y.b);
            BOOST_QVM_TEST_EQ(r.a,r.b);
            }
            {
            test_qvm::vector<V1,Dim> const y(42,1);
            test_qvm::vector<V2,Dim> r=x-vref(y);
            test_qvm::subtract_v(r.b,x.b,y.b);
            BOOST_QVM_TEST_EQ(r.a,r.b);
            }
        }
    }

int
main()
    {
    test<2>();
    test<3>();
    test<4>();
    test<5>();
    return boost::report_errors();
    }