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
© cppreference.com
Licensed under the Creative Commons Attribution-ShareAlike Unported License v3.0.
https://en.cppreference.com/w/cpp/container/mdspan/mapping_traits