write (9 of 12 overloads)

Write all of the supplied data to a stream before returning.

template<
    typename SyncWriteStream,
    typename Allocator>
std::size_t write(
    SyncWriteStream & s,
    basic_streambuf< Allocator > & b);

This function is used to write a certain number of bytes of data to a stream. The call will block until one of the following conditions is true:

This operation is implemented in terms of zero or more calls to the stream's write_some function.

s: The stream to which the data is to be written. The type must support the SyncWriteStream concept.
b: The basic_streambuf object from which data will be written.

The number of bytes transferred.

This overload is equivalent to calling:

asio::write(
    s, b,
    asio::transfer_all());