pub enum WriteMode {
Truncate,
Append,
}Expand description
The possible ways to open a file for writing.
Variants
Truncate
If the file does not exist, creates it as an empty file. If it does exist, deletes its contents. In either case, returns a handle with initial position zero.
Append
If the file does not exist, creates it as an empty file. If it does exist, leaves its contents intact. In either case, returns a handle initially positioned at the end of the file.
Trait Implementations
sourceimpl Ord for WriteMode
impl Ord for WriteMode
sourceimpl PartialOrd<WriteMode> for WriteMode
impl PartialOrd<WriteMode> for WriteMode
sourcefn partial_cmp(&self, other: &WriteMode) -> Option<Ordering>
fn partial_cmp(&self, other: &WriteMode) -> Option<Ordering>
This method returns an ordering between self and other values if one exists. Read more
1.0.0 · sourcefn lt(&self, other: &Rhs) -> bool
fn lt(&self, other: &Rhs) -> bool
This method tests less than (for self and other) and is used by the < operator. Read more
1.0.0 · sourcefn le(&self, other: &Rhs) -> bool
fn le(&self, other: &Rhs) -> bool
This method tests less than or equal to (for self and other) and is used by the <=
operator. Read more
impl Copy for WriteMode
impl Eq for WriteMode
impl StructuralEq for WriteMode
impl StructuralPartialEq for WriteMode
Auto Trait Implementations
impl RefUnwindSafe for WriteMode
impl Send for WriteMode
impl Sync for WriteMode
impl Unpin for WriteMode
impl UnwindSafe for WriteMode
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<T> ToOwned for T where
T: Clone,
impl<T> ToOwned for T where
T: Clone,
type Owned = T
type Owned = T
The resulting type after obtaining ownership.
sourcefn clone_into(&self, target: &mut T)
fn clone_into(&self, target: &mut T)
toowned_clone_into)Uses borrowed data to replace owned data, usually by cloning. Read more