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std::layout_right_padded

Defined in header <mdspan>
template< std::size_t PaddingValue = std::dynamic_extent >
struct layout_right_padded;
(since C++26)

Every specialization of layout_right_padded is a LayoutMappingPolicy which provides a layout mapping that is similar to layout_right::mapping except that it has a padding stride.

Every specialization of layout_right_padded is TriviallyCopyable, and std::is_trivially_default_constructible_v<T> is true for any such specialization T.

Let m be the instance of the mapping type layout_right_padded::mapping. The padding stride of the mapping is the second to last stride m.stride(rank() - 2) which is guaranteed to be at least the last extent value m.extent(rank() - 1), called extent to pad.

Nested class templates

mapping
a layout mapping of layout_right_padded
(public member class template)

Example

See also

layout_right
(C++23)
row-major multidimensional array layout mapping policy; rightmost extent has stride 1
(class)
layout_stride
(C++23)
a layout mapping policy with user-defined strides
(class)

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

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