seqan3::list_traits Namespace Reference

Namespace containing traits for working on seqan3::type_list. More...

Functions
Type list traits (return a single type)
template<ptrdiff_t idx, typename list_t >
	requires (seqan3::detail::template_specialisation_of< list_t, seqan3::type_list >) &&((idx >=0 &&idx< size< list_t >)||(-idx<
	Return the type at given index from the type list. More...
template<typename list_t >
	requires (seqan3::detail::template_specialisation_of< list_t, seqan3::type_list >) &&(size< list_t > > 0) using front = typename decltype(detail::back(list_t{}))::type
	Return the first type from the type list. More...

Variables
Type list traits (return a value)
template<typename... pack_t>
constexpr size_t	size< type_list< pack_t... > > = sizeof...(pack_t)
	The size of a type list. More...
template<typename query_t , typename... pack_t>
constexpr ptrdiff_t	count< query_t, type_list< pack_t... > > = seqan3::pack_traits::count<query_t, pack_t...>
	Count the occurrences of a type in a type list. More...
template<typename query_t , typename... pack_t>
constexpr ptrdiff_t	find< query_t, type_list< pack_t... > >
	Get the index of the first occurrence of a type in a type list. More...
template<template< typename > typename pred_t, typename... pack_t>
constexpr ptrdiff_t	find_if< pred_t, type_list< pack_t... > >
	Get the index of the first type in a type list that satisfies the given predicate. More...
template<typename query_t , typename list_t >
requires constexpr seqan3::detail::template_specialisation_of< list_t, seqan3::type_list > bool	contains = (find<query_t, list_t> != -1)
	Whether a type occurs in a type list or not. More...

Type list traits (return a type list)
template<template< typename > typename trait_t, typename list_t >
using	transform = decltype(detail::transform< trait_t >(list_t{}))
	Apply a transformation trait to every type in the list and return a seqan3::type_list of the results. More...
template<size_t count, typename t >
using	repeat = decltype(detail::repeat< count, t >())
	Create a type list with the given type repeated count times.. More...
	list_t
	Apply a transformation trait to every type in the list and return a seqan3::type_list of the results. More...
template<typename... lists_t>
	requires (seqan3::detail::template_specialisation_of< lists_t, seqan3::type_list > &&...) using concat
	Join two seqan3::type_list s into one. More...
template<typename replace_t , std::ptrdiff_t i, typename list_t >
	requires (seqan3::detail::template_specialisation_of< list_t, seqan3::type_list >) &&(i >=0 &&i< size< list_t >) using replace_at
	Replace the type at the given index with the given type. More...

Detailed Description

Namespace containing traits for working on seqan3::type_list.