Composite

Provides templates for combining existing alphabets into new alphabet types. More...

Collaboration diagram for Composite:

Classes
class	seqan3::alphabet_tuple_base< derived_type, component_types >
	The CRTP base for a combined alphabet that contains multiple values of different alphabets at the same time. More...
class	seqan3::alphabet_variant< alternative_types >
	A combined alphabet that can hold values of either of its alternatives. More...
class	seqan3::semialphabet_any< size >
	A semi-alphabet that type erases all other semi-alphabets of the same size. More...
struct	std::tuple_element< i, tuple_t >
	Obtains the type of the specified element. More...
struct	std::tuple_size< tuple_t >
	Provides access to the number of elements in a tuple as a compile-time constant expression. More...

Detailed Description

Provides templates for combining existing alphabets into new alphabet types.

Introduction

This module provides various class templates that allow you to combine existing alphabets into new ones. For example, you can add new characters to existing alphabets by using seqan3::alphabet_variant or combine alphabets with quality information by using seqan3::alphabet_tuple_base.

We have currently three major composite alphabets:

• seqan3::alphabet_tuple_base which can be used to create a std::tuple like object that still models seqan3::alphabet.
• seqan3::alphabet_variant which roughly corresponds to the Union of the given types. It behaves similar to std::variant, but also models seqan3::alphabet.
• seqan3::semialphabet_any which type erases other alphabets of the same size and allows again transformation to alphabets of the same size by copying the rank.