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| template<typename T , detail::span_index_t N> | 
| span< unsigned char const, detail::byte_size< T >(N)> | ranges::as_bytes (span< T, N > s) noexcept | 
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| template<typename T , detail::span_index_t N> | 
| span< unsigned char, detail::byte_size< T >(N)> | ranges::as_writeable_bytes (span< T, N > s) noexcept | 
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| template<typename ElementType > | 
| constexpr span< ElementType > | ranges::make_span (ElementType *first, ElementType *last) noexcept | 
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| template<typename ElementType > | 
| constexpr span< ElementType > | ranges::make_span (ElementType *ptr, detail::span_index_t cnt) noexcept | 
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| template<typename Rng > requires contiguous_range<Rng> && (range_cardinality<Rng>::value >= cardinality())
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| constexpr span< detail::element_t< Rng >, static_cast< detail::span_index_t >(range_cardinality< Rng >::value)> | ranges::make_span (Rng &&rng) noexcept(noexcept(ranges::data(rng))) | 
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| template<typename Rng > requires contiguous_range<Rng> && (range_cardinality<Rng>::value < cardinality())
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| constexpr span< detail::element_t< Rng > > | ranges::make_span (Rng &&rng) noexcept(noexcept(ranges::data(rng), ranges::size(rng))) | 
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