mirror of
https://github.com/bolero-MURAKAMI/Sprout
synced 2024-11-12 21:09:01 +00:00
78 lines
2.5 KiB
C++
78 lines
2.5 KiB
C++
/*=============================================================================
|
|
Copyright (c) 2011-2018 Bolero MURAKAMI
|
|
https://github.com/bolero-MURAKAMI/Sprout
|
|
|
|
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 SPROUT_WEED_DETAIL_BDIGITS_HPP
|
|
#define SPROUT_WEED_DETAIL_BDIGITS_HPP
|
|
|
|
#include <type_traits>
|
|
#include <sprout/config.hpp>
|
|
#include <sprout/string.hpp>
|
|
#include <sprout/array/array.hpp>
|
|
#include <sprout/tuple/tuple.hpp>
|
|
#include <sprout/iterator/operation.hpp>
|
|
#include <sprout/algorithm/find.hpp>
|
|
#include <sprout/detail/literal_def.hpp>
|
|
|
|
namespace sprout {
|
|
namespace weed {
|
|
namespace detail {
|
|
SPROUT_LITERAL_STRING_DEF(bdigits, "01", 2);
|
|
|
|
template<typename Dummy, typename X = void>
|
|
struct bvalues;
|
|
|
|
# define SPROUT_WEED_BDIGITS_TABLE_DEF \
|
|
{{0, 1}}
|
|
|
|
template<typename X>
|
|
struct bvalues<void, X> {
|
|
public:
|
|
typedef sprout::array<std::uint8_t, 2> value_type;
|
|
public:
|
|
SPROUT_STATIC_CONSTEXPR value_type value
|
|
SPROUT_STATIC_CONSTEXPR_DATA_MEMBER_INNER(SPROUT_WEED_BDIGITS_TABLE_DEF)
|
|
;
|
|
};
|
|
template<typename X>
|
|
SPROUT_CONSTEXPR_OR_CONST typename sprout::weed::detail::bvalues<void, X>::value_type
|
|
sprout::weed::detail::bvalues<void, X>::value
|
|
SPROUT_STATIC_CONSTEXPR_DATA_MEMBER_OUTER(SPROUT_WEED_BDIGITS_TABLE_DEF)
|
|
;
|
|
|
|
# undef SPROUT_WEED_BDIGITS_TABLE_DEF
|
|
|
|
template<typename IntType>
|
|
inline SPROUT_CONSTEXPR sprout::tuples::tuple<IntType, bool> bvalue_at(std::size_t i) {
|
|
return i < 2
|
|
? sprout::tuples::tuple<IntType, bool>(
|
|
static_cast<IntType>(sprout::weed::detail::bvalues<void>::value[i]),
|
|
true
|
|
)
|
|
: sprout::tuples::tuple<IntType, bool>(
|
|
IntType(),
|
|
false
|
|
)
|
|
;
|
|
}
|
|
template<typename IntType, typename Elem>
|
|
inline SPROUT_CONSTEXPR sprout::tuples::tuple<IntType, bool> from_bdigit(Elem c) {
|
|
return sprout::weed::detail::bvalue_at<IntType>(
|
|
sprout::distance(
|
|
sprout::weed::detail::bdigits<Elem>::value.begin(),
|
|
sprout::find(
|
|
sprout::weed::detail::bdigits<Elem>::value.begin(),
|
|
sprout::weed::detail::bdigits<Elem>::value.end(),
|
|
c
|
|
)
|
|
)
|
|
);
|
|
}
|
|
} // namespace detail
|
|
} // namespace weed
|
|
} // namespace sprout
|
|
|
|
#endif // #ifndef SPROUT_WEED_DETAIL_BDIGITS_HPP
|