Boost C++ Libraries

...one of the most highly regarded and expertly designed C++ library projects in the world. — Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

This version of Boost is under active development. You are currently in the master branch. The current version is 1.91.0.

basic_file::basic_file (5 of 10 overloads)

basic_file::basic_file (5 of 10 overloads)

Construct and open a basic_file.

basic_file(
    const executor_type & ex,
    const std::string & path,
    file_base::flags open_flags);

This constructor initialises a file and opens it.

Parameters

ex: 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