...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
Synchronise the file to disk.
void sync_all( boost::system::error_code & ec);
This function synchronises the file data and metadata to disk. Note that the semantics of this synchronisation vary between operation systems.
Set to indicate what error occurred, if any.