std::extents<IndexType,Extents...>::dynamic-index-inv
private:
static constexpr auto /*dynamic-index-inv*/( rank_type i ) noexcept;
| (since C++23) (exposition only*) |
Returns the number r such that in range [0, r+1) there are exactly [0, i+1) dynamic extents. If i <= rank_dynamic() is false, the behavior is undefined.
Parameters
| i | - | the index |
Return value
The minimum value of r such that dynamic-index(r+1)==i+1 is true.
See also
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https://en.cppreference.com/cpp/container/mdspan/extents/dynamic-index-inv
