# std::as_bytes, std::as_writable_bytes

From cppreference.com
< cpp‎ | container‎ | span

template< class T, std::size_t N> std::span<const std::byte, S/* see below */> as_bytes(std::span<T, N> s) noexcept; | (1) |
template< class T, std::size_t N> std::span<std::byte, S/* see below */> as_writable_bytes(std::span<T, N> s) noexcept; | (2) |

Obtains a view to the object representation of the elements of the span `s`.

If `N` is `std::dynamic_extent`, the extent of the returned span `S` is also `std::dynamic_extent`; otherwise it is sizeof(T) * N.

`as_writable_bytes` only participates in overload resolution if std::is_const_v<T> is false.

### Return value

1) A span constructed with {reinterpret_cast<const std::byte*>(s.data()), s.size_bytes()}.
2) A span constructed with {reinterpret_cast<std::byte*>(s.data()), s.size_bytes()}.
Retrieved from "https://en.cppreference.com/mwiki/index.php?title=cpp/container/span/as_bytes&oldid=109430"