Aleph::parallel_zip_detail::ContainerHolder< Container > Struct Template Reference

Holder for converted containers (either pointer or unique_ptr to vector). More...

#include <ah-parallel.H>

Public Types
using	value_type = std::decay_t< decltype(*std::begin(std::declval< Container & >()))>
using	holder_type = std::conditional_t< parallel_detail::has_random_access< Container >(), const Container *, std::unique_ptr< std::vector< value_type > > >

Public Member Functions
	ContainerHolder (const Container &c)
decltype(auto)	get () const
size_t	size () const noexcept
	Size is always O(1) - either from random access or from cached vector size.
auto	begin () const
auto	end () const

Public Attributes
holder_type	data
size_t	cached_size
	Cached size for O(1) access.

Detailed Description

template<typename Container>
struct Aleph::parallel_zip_detail::ContainerHolder< Container >

Holder for converted containers (either pointer or unique_ptr to vector).

For containers with random access, stores a pointer to the original. For containers without random access (like DynList), copies to a vector.

IMPORTANT: After construction, size() is always O(1) because:

• Random access containers: std::distance is O(1)
• Non-random access: already copied to vector, vector.size() is O(1)

Definition at line 1562 of file ah-parallel.H.

Member Typedef Documentation

holder_type

template<typename Container >

using Aleph::parallel_zip_detail::ContainerHolder< Container >::holder_type = std::conditional_t< parallel_detail::has_random_access<Container>(), const Container *, std::unique_ptr<std::vector<value_type> >>

Definition at line 1565 of file ah-parallel.H.

value_type

template<typename Container >

using Aleph::parallel_zip_detail::ContainerHolder< Container >::value_type = std::decay_t<decltype(*std::begin(std::declval<Container &>()))>

Definition at line 1564 of file ah-parallel.H.

Constructor & Destructor Documentation

ContainerHolder()

template<typename Container >

Aleph::parallel_zip_detail::ContainerHolder< Container >::ContainerHolder ( const Container &  c )

inlineexplicit

Definition at line 1573 of file ah-parallel.H.

Member Function Documentation

begin()

template<typename Container >

auto Aleph::parallel_zip_detail::ContainerHolder< Container >::begin ( ) const

inline

Definition at line 1600 of file ah-parallel.H.

end()

template<typename Container >

auto Aleph::parallel_zip_detail::ContainerHolder< Container >::end ( ) const

inline

Definition at line 1601 of file ah-parallel.H.

get()

template<typename Container >

decltype(auto) Aleph::parallel_zip_detail::ContainerHolder< Container >::get ( ) const

inline

Definition at line 1589 of file ah-parallel.H.

size()

template<typename Container >

size_t Aleph::parallel_zip_detail::ContainerHolder< Container >::size ( ) const

inlinenoexcept

Size is always O(1) - either from random access or from cached vector size.

Definition at line 1598 of file ah-parallel.H.

Member Data Documentation

cached_size

template<typename Container >

size_t Aleph::parallel_zip_detail::ContainerHolder< Container >::cached_size

Cached size for O(1) access.

Definition at line 1571 of file ah-parallel.H.

data

template<typename Container >

holder_type Aleph::parallel_zip_detail::ContainerHolder< Container >::data

Definition at line 1570 of file ah-parallel.H.

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The documentation for this struct was generated from the following file:

• ah-parallel.H