span

A range of bytes expressed as a ContiguousContainer.

template<
    class T>
class span

Name	Description
const_iterator	The const iterator used by the container.
const_pointer	The const pointer used by the container.
const_reference	The const reference used by the container.
element_type	The type of value, including cv qualifiers.
index_type	The type of integer used to index the span.
iterator	The iterator used by the container.
pointer	A pointer to a span element.
reference	A reference to a span element.
value_type	The type of value of each span element.

Name	Description
begin	Returns an iterator to the beginning of the span.
cbegin	Returns an iterator to the beginning of the span.
cend	Returns an iterator to one past the end of the span.
data	Returns a pointer to the beginning of the span.
empty	Returns true if the span is empty.
end	Returns an iterator to one past the end of the span.
operator=	Assignment.
size	Returns the number of elements in the span.
span	Constructor.

This class implements a non-owning reference to a storage area of a certain size and having an underlying integral type with size of 1.

Type	Description
`T`	The type pointed to by span iterators

Convenience header <boost/beast/core.hpp>

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