Struct CopyOptimization
pub struct CopyOptimization<T>(/* private fields */)
where
T: ?Sized;
Expand description
An optimization hint about whether T
is trivially copyable.
Implementations§
§impl<T> CopyOptimization<T>where
T: ?Sized,
impl<T> CopyOptimization<T>where
T: ?Sized,
pub const unsafe fn enable() -> CopyOptimization<T>
pub const unsafe fn enable() -> CopyOptimization<T>
Returns a CopyOptimization
hint with the optimization enabled for T
.
§Safety
T
must not have any uninit bytes (e.g. padding).
pub const unsafe fn enable_if(value: bool) -> CopyOptimization<T>
pub const unsafe fn enable_if(value: bool) -> CopyOptimization<T>
Returns a CopyOptimization
hint with the optimization enabled for T
if value
is
true
.
§Safety
T
must not have any uninit bytes (e.g. padding) if value
is true
.
pub const fn disable() -> CopyOptimization<T>
pub const fn disable() -> CopyOptimization<T>
Returns a CopyOptimization
hint with the optimization disabled for T
.
pub const fn is_enabled(&self) -> bool
pub const fn is_enabled(&self) -> bool
Returns whether the optimization is enabled for T
.
Auto Trait Implementations§
impl<T> Freeze for CopyOptimization<T>where
T: ?Sized,
impl<T> RefUnwindSafe for CopyOptimization<T>where
T: RefUnwindSafe + ?Sized,
impl<T> Send for CopyOptimization<T>
impl<T> Sync for CopyOptimization<T>
impl<T> Unpin for CopyOptimization<T>
impl<T> UnwindSafe for CopyOptimization<T>where
T: UnwindSafe + ?Sized,
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more