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Construct and open a basic_stream_file.
template<
typename ExecutionContext>
basic_stream_file(
ExecutionContext & context,
const std::string & path,
file_base::flags open_flags,
typename constraint< is_convertible< ExecutionContext &, execution_context & >::value, defaulted_constraint >::type = defaulted_constraint());
This constructor initialises and opens a file.
An execution context which provides the I/O executor that the file will use, by default, to dispatch handlers for any asynchronous operations performed on the file.
The path name identifying the file to be opened.
A set of flags that determine how the file should be opened.
Thrown on failure.