Boost C++ Libraries

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basic_file::basic_file (6 of 10 overloads)

basic_file::basic_file (6 of 10 overloads)

Construct and open a basic_file.

template<
    typename ExecutionContext>
basic_file(
    ExecutionContext & context,
    const std::string & path,
    file_base::flags open_flags,
    constraint_t< is_convertible< ExecutionContext &, execution_context & >::value, defaulted_constraint >  = defaulted_constraint());

This constructor initialises a file and opens it.

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.
path: The path name identifying the file to be opened.
open_flags: A set of flags that determine how the file should be opened.

Exactly one of the following file_base::flags values must be specified:

flags::read_only
flags::write_only
flags::read_write

The following flags may be bitwise or-ed in addition:

flags::append
flags::create
flags::exclusive
flags::truncate
flags::sync_all_on_write