Trait std::convert::AsMut 1.0.0
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[src]
pub trait AsMut<T> where
T: ?Sized, {
fn as_mut(&mut self) -> &mut T;
}A cheap, mutable reference-to-mutable reference conversion.
This trait is similar to AsRef but used for converting between mutable
references.
Note: this trait must not fail. If the conversion can fail, use a
dedicated method which returns an Option<T> or a Result<T, E>.
Generic Implementations
AsMutauto-dereferences if the inner type is a reference or a mutable reference (e.g.:foo.as_ref()will work the same iffoohas type&mut Fooor&&mut Foo)
Examples
Box<T> implements AsMut<T>:
fn add_one<T: AsMut<u64>>(num: &mut T) { *num.as_mut() += 1; } let mut boxed_num = Box::new(0); add_one(&mut boxed_num); assert_eq!(*boxed_num, 1);Run
Required Methods
Implementors
impl<T> AsMut<T> for Box<T> where
T: ?Sized,impl<T> AsMut<[T]> for Vec<T>impl<T> AsMut<Vec<T>> for Vec<T>impl<T> AsMut<[T]> for [T; 11]impl<T> AsMut<[T]> for [T; 13]impl<T> AsMut<[T]> for [T; 2]impl<T> AsMut<[T]> for [T; 30]impl<T> AsMut<[T]> for [T; 8]impl<T> AsMut<[T]> for [T; 9]impl<T> AsMut<[T]> for [T; 32]impl<T> AsMut<[T]> for [T; 6]impl<T> AsMut<[T]> for [T; 23]impl<T> AsMut<[T]> for [T; 1]impl<T> AsMut<[T]> for [T; 16]impl<T> AsMut<[T]> for [T; 21]impl<T> AsMut<[T]> for [T; 0]impl<T> AsMut<[T]> for [T; 4]impl<T> AsMut<[T]> for [T; 28]impl<T> AsMut<[T]> for [T; 24]impl<T> AsMut<[T]> for [T; 3]impl<T> AsMut<[T]> for [T; 15]impl<T> AsMut<[T]> for [T; 14]impl<T> AsMut<[T]> for [T; 18]impl<'a, T, U> AsMut<U> for &'a mut T where
T: AsMut<U> + ?Sized,
U: ?Sized,impl<T> AsMut<[T]> for [T; 26]impl<T> AsMut<[T]> for [T; 5]impl<T> AsMut<[T]> for [T; 20]impl<T> AsMut<[T]> for [T; 29]impl<T> AsMut<[T]> for [T; 17]impl<T> AsMut<[T]> for [T; 22]impl<T> AsMut<[T]> for [T; 7]impl<T> AsMut<[T]> for [T; 25]impl<T> AsMut<[T]> for [T; 19]impl<T> AsMut<[T]> for [T; 27]impl<T> AsMut<[T]> for [T]impl<T> AsMut<[T]> for [T; 10]impl<T> AsMut<[T]> for [T; 12]impl<T> AsMut<[T]> for [T; 31]