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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

Defined in header <mdspan> 
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 member functions 
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.

Example

See also

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https://en.cppreference.com/w/cpp/container/mdspan/mapping_traits