std::layout_right::mapping
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< cpp | container | mdspan | layout right
Defined in header <mdspan>
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template
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class Extents >
class layout_right:: mapping ; |
(since C++23) | |
The class template layout_right::mapping
Every specialization of mapping is a LayoutMapping and a TriviallyCopyable type which satisfies regular
The program is ill-formed if the size of the multidimensional index space Extents() is not representable as a value of type Extents::index_type when Extents::rank_dynamic() is 0
Template parameters
| Extents | - | specifies number of dimensions, their sizes, and which are known at compile time. Must be a specialization of std::extents.
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Member types
| Member name | Definition |
extents_type
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Extents
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index_type
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extents_type::index_type
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size_type
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extents_type::size_type
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rank_type
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extents_type::rank_type
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layout_type
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std::layout_right |
Data members
| Member | Definition |
extents_type extents_ (private)
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the extents object (exposition-only member object* |
Member functions
| constructs a new mapping (public member function) |
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operator= (explicitly defaulted) |
assigns a mapping (public member function) |
Observers | |
| obtains the extents object (public member function) |
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| returns the required size of the mapping (public member function) |
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| maps a multidimensional index into an offset value (public member function) |
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[static]
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determines if this mapping is unique (every combination of indices maps to a different underlying element) (public static member function) |
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[static]
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determines if this mapping is exhaustive (every underlying element can be accessed with some combination of indices) (public static member function) |
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[static]
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determines if this mapping is strided (in each dimension, incrementing an index jumps over the same number of underlying elements every time) (public static member function) |
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[static]
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determines if this layout mapping is always unique (public static member function) |
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[static]
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determines if this layout mapping is always exhaustive (public static member function) |
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[static]
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determines if this layout mapping is always strided (public static member function) |
| obtains the stride along the specified dimension (public member function) |
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Non-member functions
compares this layout mapping of layout_right with other mapping (function template) |
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calculates the mapping and data handle offset used for subdmspan (public member function) |
Example
| This section is incomplete Reason: no example |
See also
| a layout mapping of layout_left (public member class template of std::layout_left) |
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| a layout mapping of layout_stride (public member class template of std::layout_stride) |