char.hpp File Reference

Provides alphabet adaptations for standard char types. More...

#include <bio/alphabet/concept.hpp>
#include <bio/meta/detail/int_types.hpp>

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Namespaces
namespace	bio
	The main BioC++ namespace.
namespace	bio::alphabet
	The alphabet module's namespace.
namespace	bio::alphabet::custom
	A namespace for third party and standard library specialisations of BioC++ customisation points.

Functions
Adapt builtin character types as alphabets.
These overloads make char, wchar_t, char16_t and char32_t (but not signed char and unsigned char!) satisfy bio::alphabet::alphabet.
template<bio::meta::nonint_character char_type>
constexpr char_type &	bio::alphabet::custom::tag_invoke (assign_char_to tag, char_type const chr2, char_type &chr) noexcept
	Assign a char to the char type (same as calling =).
template<bio::meta::nonint_character char_type>
constexpr char_type &	bio::alphabet::custom::tag_invoke (assign_rank_to tag, decltype(tag_invoke(to_rank{}, char_type{})) const rank, char_type &chr) noexcept
	Assigning a rank to a char is the same as assigning it a numeric value.
template<bio::meta::nonint_character char_type>
consteval auto	bio::alphabet::custom::tag_invoke (size, char_type const) noexcept
	The number of values the char type can take (e.g. 256 for char).
template<bio::meta::nonint_character char_type>
constexpr char_type	bio::alphabet::custom::tag_invoke (to_char tag, char_type const chr) noexcept
	Converting char to char is no-op (it will just return the value you pass in).
template<bio::meta::nonint_character char_type>
constexpr auto	bio::alphabet::custom::tag_invoke (to_rank tag, char_type const chr) noexcept
	Convert char to rank by casting to an unsigned integral type of same size.

Detailed Description

Provides alphabet adaptations for standard char types.

Author

Hannes Hauswedell <hannes.hauswedell AT decode.is>

This file provides function and type trait overloads so that the following types fulfil the bio::alphabet::alphabet:

• char
• char16_t
• char32_t

You will likely not use these interfaces directly, they are, however, very helpful for conversions between other alphabets and between other alphabets and characters.

Attention

• Note that signed char and unsigned char are absent from the list, because of their type ambiguity with int8_t and uint8_t.