boost::corosio::stream_file::sync_data
Synchronize file data to stable storage.
Synopsis
Declared in <boost/corosio/stream_file.hpp>
[[nodiscard]]
std::error_code
sync_data() noexcept;Description
Write‐back failures such as device I/O errors surface here and are reported through the returned error code. A closed file reports errc::bad_file_descriptor.