...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
Write the given data at the specified offset.
template< typename ConstBufferSequence> std::size_t write_some_at( implementation_type & impl, boost::uint64_t offset, const ConstBufferSequence & buffers, boost::system::error_code & ec);