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Construct a basic_stream_file
without opening it.
template<
typename ExecutionContext>
basic_stream_file(
ExecutionContext & context,
typename constraint< is_convertible< ExecutionContext &, execution_context & >::value, defaulted_constraint >::type = defaulted_constraint());
This constructor initialises a file without opening it. The file needs to be opened before data can be read from or or written to it.
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.