std::extents<IndexType,Extents...>::extent
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C++
Containers library
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std::mdspan
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std::extents
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extents::extent | ||||
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constexpr index_type extent( rank_type i )
const
noexcept
;
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(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
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[static]
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returns static extent size of an extents at a certain rank index (public static member function) |
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(C++11)
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obtains the size of an array type along a specified dimension (class template) |