# deduction guides for `std::mdspan`

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< cpp‎ | container‎ | mdspan

Defined in header `<mdspan>` |  |
template< class CArray > requires(std::is_array_v<CArray> && std::rank_v<CArray> == 1) mdspan( CArray& ) -> mdspan<std::remove_all_extents_t<CArray>, std::extents<std::size_t, std::extent_v<CArray, 0>>>; | (1) | (since C++23)
template< class Pointer > requires(std::is_pointer_v<std::remove_reference_t<Pointer>>) mdspan( Pointer&& ) -> mdspan<std::remove_pointer_t<std::remove_reference_t<Pointer>>, std::extents<size_t>>; | (2) | (since C++23)
template< class ElementType, class... Integrals > requires((std::is_convertible_v<Integrals, std::size_t> && ...) && sizeof...(Integrals) > 0) explicit mdspan( ElementType*, Integrals... ) -> mdspan<ElementType, std::dextents<std::size_t, sizeof...(Integrals)>>; | (3) | (since C++23)
template< class ElementType, class OtherIndexType, std::size_t N > mdspan( ElementType*, std::span<OtherIndexType, N> ) -> mdspan<ElementType, std::dextents<std::size_t, N>>; | (4) | (since C++23)
template< class ElementType, class OtherIndexType, std::size_t N > mdspan( ElementType*, const std::array<OtherIndexType, N>& ) -> mdspan<ElementType, std::dextents<std::size_t, N>>; | (5) | (since C++23)
template< class ElementType, class IndexType, std::size_t... ExtentsPack > mdspan( ElementType*, const std::extents<IndexType, ExtentsPack...>& ) -> mdspan<ElementType, std::extents<IndexType, ExtentsPack...>>; | (6) | (since C++23)
template< class ElementType, class MappingType > mdspan( ElementType*, const MappingType& ) -> mdspan<ElementType, typename MappingType::extents_type, typename MappingType::layout_type>; | (7) | (since C++23)
template< class MappingType, class AccessorType > mdspan( const typename AccessorType::data_handle_type&, const MappingType&, const AccessorType& ) -> mdspan<typename AccessorType::element_type, typename MappingType::extents_type, typename MappingType::layout_type, AccessorType>; | (8) | (since C++23)

| This section is incomplete Reason: explanation

### Example

| This section is incomplete Reason: no example

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