The type of error condition used by the library.
Defined in header
using error_condition = boost::system::error_condition;
This alias is no longer supported and should not be used in new code. Please
system::error_condition instead. This alias is
included for backwards compatibility with earlier versions of the library.
However, it will be removed in future releases, and using it in new code
is not recommended. Please use the updated version instead to ensure compatibility
with future versions of the library.