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basic_file::basic_file (8 of 10 overloads)

Construct a basic_file on an existing native file.

template<
    typename ExecutionContext>
basic_file(
    ExecutionContext & context,
    const native_handle_type & native_file,
    typename constraint< is_convertible< ExecutionContext &, execution_context & >::value, defaulted_constraint >::type  = defaulted_constraint());

This constructor initialises a file object to hold an existing native file.

Parameters

context

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.

native_file

A native file.

Exceptions

boost::system::system_error

Thrown on failure.


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