std::mdspan<T,Extents,LayoutPolicy,AccessorPolicy>::is_unique, std::mdspan<T,Extents,LayoutPolicy,AccessorPolicy>::is_exhaustive, std::mdspan<T,Extents,LayoutPolicy,AccessorPolicy>::is_strided, std::mdspan<T,Extents,LayoutPolicy,AccessorPolicy>::is_always_unique, std::mdspan<T,Extents,LayoutPolicy,AccessorPolicy>::is_always_exhaustive, std::mdspan<T,Extents,LayoutPolicy,AccessorPolicy>::is_always_strided

 

C++

Compiler support

Freestanding and hosted

Language

Standard library

Standard library headers

Named requirements

Feature test macros (C++20)

Language support library

Concepts library (C++20)

Metaprogramming library (C++11)

Diagnostics library

General utilities library

Strings library

Containers library

Iterators library

Ranges library (C++20)

Algorithms library

Numerics library

Localizations library

Input/output library

Filesystem library (C++17)

Regular expressions library (C++11)

Concurrency support library (C++11)

Execution support library (C++26)

Technical specifications

Symbols index

External libraries

 

Containers library

Sequence

array (C++11)

vector

vector<bool>

inplace_vector (C++26)

deque

forward_list (C++11)

list

Associative

set

multiset

map

multimap

Unordered associative

unordered_set (C++11)

unordered_multiset (C++11)

unordered_map (C++11)

unordered_multimap (C++11)

Adaptors

stack

queue

priority_queue

flat_set (C++23)

flat_multiset (C++23)

flat_map (C++23)

flat_multimap (C++23)

Views

span (C++20)

mdspan (C++23)

Tables

Iterator invalidation

Member function table

Non-member function table

 

std::mdspan

Member functions mdspan::mdspan mdspan::operator= Element access mdspan::operator[] Observers mdspan::rank mdspan::rank_dynamic mdspan::static_extent mdspan::extent mdspan::size mdspan::empty mdspan::stride mdspan::extents mdspan::data_handle mdspan::mapping mdspan::accessor mdspan::is_uniquemdspan::is_exhaustivemdspan::is_stridedmdspan::is_always_uniquemdspan::is_always_exhaustivemdspan::is_always_strided

Non-member functions swap(std::mdspan) Subviews submdspan (C++26) submdspan_extents (C++26) Helper types and templates extentsdextentsdims (C++26) default_accessor Layout mapping policies layout_left layout_right layout_stride layout_left_padded (C++26) layout_right_padded (C++26) Subviews helpers full_extent (C++26) strided_slice (C++26) submdspan_mapping_result (C++26) Deduction guides

 

constexpr bool is_unique() const;	(1)	(since C++23)
constexpr bool is_exhaustive() const;	(2)	(since C++23)
constexpr bool is_strided() const;	(3)	(since C++23)
static constexpr bool is_always_unique();	(4)	(since C++23)
static constexpr bool is_always_exhaustive();	(5)	(since C++23)
static constexpr bool is_always_strided();	(6)	(since C++23)

Check if (1-3) the layout mapping map_ or (4-6) its type mapping_type satisfies some traits.

1-3) Let func be (1) is_unique, (2) is_exhaustive, or (3) is_strided, then it's equivalent to return map_.func();.

4-6) Let func be (4) is_always_unique, (5) is_always_exhaustive, or (6) is_always_strided, then it's equivalent to return mapping_type::func();.

Parameters

(none)

Return value

See above.