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///////////////////////////////////////////////////////////////////////////////

// Copyright (c) Lewis Baker

// Licenced under MIT license. See LICENSE.txt for details.

///////////////////////////////////////////////////////////////////////////////

#ifndef CPPCORO_FILE_OPEN_MODE_HPP_INCLUDED

#define CPPCORO_FILE_OPEN_MODE_HPP_INCLUDED

namespace cppcoro

{

enum class file_open_mode

{

/// Open an existing file.

///

/// If file does not already exist when opening the file then raises

/// an exception.

open_existing,

/// Create a new file, overwriting an existing file if one exists.

///

/// If a file exists at the path then it is overwitten with a new file.

/// If no file exists at the path then a new one is created.

create_always,

/// Create a new file.

///

/// If the file already exists then raises an exception.

create_new,

/// Open the existing file if one exists, otherwise create a new empty

/// file.

create_or_open,

/// Open the existing file, truncating the file size to zero.

///

/// If the file does not exist then raises an exception.

truncate_existing

};

}

#endif