std::extents<IndexType,Extents...>:: dynamic-index-inv

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private :

template < class OtherIndexType >

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 .

Example

See also