78 lines
4.1 KiB
Plaintext
78 lines
4.1 KiB
Plaintext
///////////////////////////////////////////////////////////////////////////////
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// Copyright 2013 John Maddock. Distributed under the Boost
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// Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#ifndef BOOST_MP_UBLAS_HPP
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#define BOOST_MP_UBLAS_HPP
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namespace boost { namespace numeric { namespace ublas {
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template<class V>
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class sparse_vector_element;
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template <class V, class Backend, multiprecision::expression_template_option ExpressionTemplates>
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inline bool operator == (const sparse_vector_element<V>& a, const ::boost::multiprecision::number<Backend, ExpressionTemplates>& b)
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{
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typedef typename sparse_vector_element<V>::const_reference ref_type;
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return static_cast<ref_type>(a) == b;
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}
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template<class X, class Y>
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struct promote_traits;
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template <class Backend1, boost::multiprecision::expression_template_option ExpressionTemplates1, class Backend2, boost::multiprecision::expression_template_option ExpressionTemplates2>
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struct promote_traits<boost::multiprecision::number<Backend1, ExpressionTemplates1>, boost::multiprecision::number<Backend2, ExpressionTemplates2> >
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{
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typedef boost::multiprecision::number<Backend1, ExpressionTemplates1> number1_t;
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typedef boost::multiprecision::number<Backend2, ExpressionTemplates2> number2_t;
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typedef typename mpl::if_c<
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is_convertible<number1_t, number2_t>::value && !is_convertible<number2_t, number1_t>::value,
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number2_t, number1_t
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>::type promote_type;
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};
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template <class Backend1, boost::multiprecision::expression_template_option ExpressionTemplates1, class Arithmetic>
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struct promote_traits<boost::multiprecision::number<Backend1, ExpressionTemplates1>, Arithmetic>
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{
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typedef boost::multiprecision::number<Backend1, ExpressionTemplates1> promote_type;
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};
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template <class Arithmetic, class Backend1, boost::multiprecision::expression_template_option ExpressionTemplates1>
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struct promote_traits<Arithmetic, boost::multiprecision::number<Backend1, ExpressionTemplates1> >
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{
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typedef boost::multiprecision::number<Backend1, ExpressionTemplates1> promote_type;
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};
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template <class Backend1, boost::multiprecision::expression_template_option ExpressionTemplates1, class tag, class Arg1, class Arg2, class Arg3, class Arg4>
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struct promote_traits<boost::multiprecision::number<Backend1, ExpressionTemplates1>, boost::multiprecision::detail::expression<tag, Arg1, Arg2, Arg3, Arg4> >
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{
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typedef boost::multiprecision::number<Backend1, ExpressionTemplates1> number1_t;
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typedef boost::multiprecision::detail::expression<tag, Arg1, Arg2, Arg3, Arg4> expression_type;
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typedef typename expression_type::result_type number2_t;
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typedef typename promote_traits<number1_t, number2_t>::promote_type promote_type;
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};
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template <class tag, class Arg1, class Arg2, class Arg3, class Arg4, class Backend1, boost::multiprecision::expression_template_option ExpressionTemplates1>
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struct promote_traits<boost::multiprecision::detail::expression<tag, Arg1, Arg2, Arg3, Arg4>, boost::multiprecision::number<Backend1, ExpressionTemplates1> >
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{
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typedef boost::multiprecision::number<Backend1, ExpressionTemplates1> number1_t;
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typedef boost::multiprecision::detail::expression<tag, Arg1, Arg2, Arg3, Arg4> expression_type;
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typedef typename expression_type::result_type number2_t;
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typedef typename promote_traits<number1_t, number2_t>::promote_type promote_type;
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};
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template <class tag, class Arg1, class Arg2, class Arg3, class Arg4, class tagb, class Arg1b, class Arg2b, class Arg3b, class Arg4b>
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struct promote_traits<boost::multiprecision::detail::expression<tag, Arg1, Arg2, Arg3, Arg4>, boost::multiprecision::detail::expression<tagb, Arg1b, Arg2b, Arg3b, Arg4b> >
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{
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typedef boost::multiprecision::detail::expression<tag, Arg1, Arg2, Arg3, Arg4> expression1_t;
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typedef typename expression1_t::result_type number1_t;
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typedef boost::multiprecision::detail::expression<tagb, Arg1b, Arg2b, Arg3b, Arg4b> expression2_t;
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typedef typename expression2_t::result_type number2_t;
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};
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}}} // namespace
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#endif
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