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Diffstat (limited to 'boost/multiprecision/traits/is_byte_container.hpp')
| -rw-r--r-- | boost/multiprecision/traits/is_byte_container.hpp | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/boost/multiprecision/traits/is_byte_container.hpp b/boost/multiprecision/traits/is_byte_container.hpp new file mode 100644 index 0000000000..1efda2930e --- /dev/null +++ b/boost/multiprecision/traits/is_byte_container.hpp @@ -0,0 +1,33 @@ +/////////////////////////////////////////////////////////////////////////////// +// 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 <boost/mpl/has_xxx.hpp> +#include <boost/type_traits/is_integral.hpp> + +namespace boost{ namespace multiprecision{ namespace detail{ + + BOOST_MPL_HAS_XXX_TRAIT_NAMED_DEF(has_member_value_type, value_type, false); + BOOST_MPL_HAS_XXX_TRAIT_NAMED_DEF(has_member_const_iterator, const_iterator, false); + + template <class C, bool b> + struct is_byte_container_imp + { + static const bool value = boost::is_integral<typename C::value_type>::value && (sizeof(typename C::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_value_type<C>::value && has_member_const_iterator<C>::value> {}; + + +}}} // namespaces + +#endif // BOOST_IS_BYTE_CONTAINER_HPP + |