std::extents<IndexType,Extents...>::index-cast
Min standard notice:
Casts the index i of type OtherIndexType into a certain integral type.
# Declarations
template< class OtherIndexType >
static constexpr auto /*index-cast*/( OtherIndexType&& i ) noexcept;
(since C++23) (exposition only*)
# Parameters
i: the index to be cast
# Return value
Cast index.
# Notes
A call to this function will always return an integral type other than bool. Integer-class types can use the static_cast branch without loss of precision because this function’s call sites are already constrained on the convertibility of OtherIndexType to index_type.