text: ///////////////////////////////////////////////////////////////////////////////
  //  Copyright 2015 John Maddock. 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)
  
  #ifndef BOOST_IS_BYTE_CONTAINER_HPP
  #define BOOST_IS_BYTE_CONTAINER_HPP
  
  #include <iterator>
  #include <type_traits>
  
  namespace boost { namespace multiprecision { namespace detail {
  
  template <class T>
  struct has_member_const_iterator
  {
     template <class U>
     static double         check(U*, typename U::const_iterator* = 0);
     static char           check(...);
     static T*             get();
     static constexpr bool value = sizeof(check(get())) == sizeof(double);
  };
  
  
  template <class C, bool b>
  struct is_byte_container_imp
  {
     // Note: Don't use C::value_type as this is a rather widespread typedef, even for non-range types
     using container_value_type = typename std::remove_cv<typename std::iterator_traits<typename C::const_iterator>::value_type>::type;
     static constexpr const bool                                                                                  value = boost::multiprecision::detail::is_integral<container_value_type>::value && (sizeof(container_value_type) == 1);
  };
  
  template <class C>
  struct is_byte_container_imp<C, false> : public boost::false_type
  {};
  
  template <class C>
  struct is_byte_container : public is_byte_container_imp<C, has_member_const_iterator<C>::value>
  {};
  
  }}} // namespace boost::multiprecision::detail
  
  #endif // BOOST_IS_BYTE_CONTAINER_HPP
  