///////////////////////////////////////////////////////////////////////////////
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// Copyright 2015 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_IS_BYTE_CONTAINER_HPP
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#define BOOST_IS_BYTE_CONTAINER_HPP
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#include <iterator>
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#include <boost/mpl/has_xxx.hpp>
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#include <boost/type_traits/is_integral.hpp>
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#include <boost/type_traits/remove_cv.hpp>
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namespace boost { namespace multiprecision { namespace detail {
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BOOST_MPL_HAS_XXX_TRAIT_NAMED_DEF(has_member_const_iterator, const_iterator, false)
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template <class C, bool b>
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struct is_byte_container_imp
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{
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// Note: Don't use C::value_type as this is a rather widespread typedef, even for non-range types
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typedef typename boost::remove_cv<typename std::iterator_traits<typename C::const_iterator>::value_type>::type container_value_type;
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static const bool value = boost::is_integral<container_value_type>::value && (sizeof(container_value_type) == 1);
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};
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template <class C>
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struct is_byte_container_imp<C, false> : public boost::false_type
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{};
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template <class C>
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struct is_byte_container : public is_byte_container_imp<C, has_member_const_iterator<C>::value>
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{};
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}}} // namespace boost::multiprecision::detail
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#endif // BOOST_IS_BYTE_CONTAINER_HPP
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