The functions [@boost:/doc/html/boost_asio/reference/buffer_size.html `net::buffer_size`] and [@boost:/doc/html/boost_asio/reference/buffer_copy.html `net::buffer_copy`] determine the total number of bytes in a buffer sequence, and transfer some or all of bytes from one buffer sequence to another respectively. The function `buffer_size` is a customization point: user defined overloads in foreign namespaces are possible, and callers should invoke `buffer_size` without namespace qualification. The functions [@boost:/doc/html/boost_asio/reference/buffer_sequence_begin.html `net::buffer_sequence_begin`] and [@boost:/doc/html/boost_asio/reference/buffer_sequence_end.html `net::buffer_sequence_end`] are used to obtain a pair of iterators for traversing the sequence. Beast provides a set of buffer sequence types and algorithms such as [link beast.ref.boost__beast__buffers_cat `buffers_cat`], [link beast.ref.boost__beast__buffers_front `buffers_front`], [link beast.ref.boost__beast__buffers_prefix `buffers_prefix`], [link beast.ref.boost__beast__buffers_range `buffers_range`], and [link beast.ref.boost__beast__buffers_suffix `buffers_suffix`]. This example returns the bytes in a buffer sequence as a string:
The functions [@boost:/doc/html/boost_asio/reference/buffer_size.html `net::buffer_size`] and [@boost:/doc/html/boost_asio/reference/buffer_copy.html `net::buffer_copy`] determine the total number of bytes in a buffer sequence, and transfer some or all of bytes from one buffer sequence to another respectively. The function `buffer_size` is a customization point: user defined overloads in foreign namespaces are possible, and callers should invoke `buffer_size` without namespace qualification. The functions [@boost:/doc/html/boost_asio/reference/buffer_sequence_begin.html `net::buffer_sequence_begin`] and [@boost:/doc/html/boost_asio/reference/buffer_sequence_end.html `net::buffer_sequence_end`] are used to obtain a pair of iterators for traversing the sequence. Beast provides a set of buffer sequence types and algorithms such as [link beast.ref.boost__beast__buffers_cat `buffers_cat`], [link beast.ref.boost__beast__buffers_front `buffers_front`], [link beast.ref.boost__beast__buffers_prefix `buffers_prefix`], [link beast.ref.boost__beast__buffers_range `buffers_range`], and [link beast.ref.boost__beast__buffers_suffix `buffers_suffix`]. This example returns the bytes in a buffer sequence as a string:
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