Struct FileOptions 

pub struct FileOptions {
    pub read: bool,
    pub write: bool,
    pub create: bool,
    pub create_new: bool,
    pub truncate: bool,
}

Portable regular-file opening options. Fields are visible to alternative implementations, including simulated filesystems. Append mode is omitted: positioned writes must target the supplied offset.

Fields

read: bool

Open with read access.

write: bool

Open with write access.

create: bool

Create the file if it does not already exist. Requires write.

create_new: bool

Create a new file, failing if one already exists at the path. Requires write, and takes precedence over create and truncate.

truncate: bool

Truncate an existing file to zero length when opening it. Requires write.

Implementations

impl FileOptions

pub const READ: Self

Open an existing file for reading only.

pub const CREATE: Self

Open a file for writing only, creating it if missing and truncating it otherwise.

Trait Implementations

impl Clone for FileOptions

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for FileOptions

impl Debug for FileOptions

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for FileOptions

fn default() -> Self

Returns the “default value” for a type.

impl Eq for FileOptions

impl PartialEq for FileOptions

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for FileOptions