zip_layout.hpp File Reference

Additional layout helpers and policies for zipped mdspan views. More...

#include <uni20/core/compiler_attributes.hpp>
#include <uni20/mdspan/concepts.hpp>
#include <uni20/mdspan/mdspan.hpp>
#include <algorithm>
#include <array>
#include <cassert>
#include <cstddef>
#include <initializer_list>
#include <tuple>
#include <type_traits>
#include <utility>

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Classes
struct	uni20::GeneralZipLayout< Layouts >
	Fallback zip layout for arbitrary mapping policies. More...
struct	uni20::GeneralZipLayout< Layouts >::mapping< Extents >
struct	uni20::StridedZipLayout< NumSpans >
	Zip layout for NumSpans strided spans (all using layout_stride). More...
struct	uni20::StridedZipLayout< NumSpans >::mapping< Ext >
	Nested mapping policy for extents Ext, modeling LayoutMappingPolicy. More...
struct	uni20::zip_layout_selector< Spans >
	Picks the right zip layout for a pack of mdspan types. More...
struct	uni20::zip_layout_selector< Spans... >
	Specialization that selects StridedZipLayout when all spans are strided. More...

Namespaces
namespace	uni20

Typedefs
template<typename... Spans>
using	uni20::common_extents_t = typename detail::common_extents< Spans... >::type
	Convenience alias that represents the common extents of a set of mdspans.
template<typename T , std::size_t N>
using	uni20::tuple_n = decltype(detail::make_tuple_n_impl< T >(std::make_index_sequence< N >{}))
	Alias: tuple_n<T,N> is std::tuple<T,T,…> with N repetitions of T.
template<typename... Spans>
using	uni20::zip_layout_t = typename zip_layout_selector< Spans... >::type
	Alias to extract the chosen layout policy for the given spans.

Functions
template<typename T , std::size_t N>
UNI20_HOST_DEVICE constexpr std::array< T, N+1 >	uni20::concat (const std::array< T, N > &a, const T &x)
	Append a single element to the end of an array.
template<typename T , std::size_t N1, std::size_t N2>
UNI20_HOST_DEVICE constexpr std::array< T, N1+N2 >	uni20::concat (const std::array< T, N1 > &a1, const std::array< T, N2 > &a2)
	Concatenate two std::array instances into one (constexpr helper).
template<typename T , std::size_t N>
UNI20_HOST_DEVICE constexpr std::array< T, N+1 >	uni20::concat (const T &x, const std::array< T, N > &a)
	Prepend a single element in front of an array.
template<typename... Spans>
auto	uni20::make_common_extents (Spans... spans)
	Build an extents object representing the common shape of the given spans.

Detailed Description

Additional layout helpers and policies for zipped mdspan views.