std::extents<IndexType,Extents...>:: extent
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C++
Containers library
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(C++11)
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(C++26)
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(C++11)
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Associative | ||||
Unordered associative | ||||
(C++11)
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(C++11)
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(C++11)
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(C++11)
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Adaptors | ||||
(C++23)
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(C++23)
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(C++23)
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(C++23)
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Views | ||||
(C++20)
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(C++23)
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Iterator invalidation | ||||
Member function table | ||||
Non-member function table |
std::mdspan
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std::extents
Member functions | ||||
Observers | ||||
extents::extent
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Helpers | ||||
Non-member functions | ||||
Deduction guides |
constexpr
index_type extent
(
rank_type i
)
const
noexcept
;
|
(since C++23) | |
Returns dynamic extent size of an
extents
at a certain rank index.
Parameters
i | - | The rank index to get the extent size of |
Return value
The dynamic extent size of an
extents
at a certain rank index.
Example
Run this code
#include <iostream> #include <mdspan> int main() { std::extents<int, 1, 2> e1; std::extents<int, 3, std::dynamic_extent, std::dynamic_extent> e2(4, 5); std::cout << e1.extent(0) << ", " << e1.extent(1) << '\n'; std::cout << e2.extent(0) << ", " << e2.extent(1) << ", " << e2.extent(2) << '\n'; }
Output:
1, 2 3, 4, 5
See also
[static]
|
returns static extent size of an
extents
at a certain rank index
(public static member function) |
(C++11)
|
obtains the size of an array type along a specified dimension
(class template) |
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