1.0.0[−][src]Trait core::convert::AsMut
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
AsMut
auto-dereferences if the inner type is a mutable reference (e.g.:foo.as_mut()
will work the same iffoo
has type&mut Foo
or&mut &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
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impl<T> AsMut<[T]> for [T; 0]
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impl<T> AsMut<[T]> for [T; 1]
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impl<T> AsMut<[T]> for [T; 2]
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impl<T> AsMut<[T]> for [T; 3]
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impl<T> AsMut<[T]> for [T; 4]
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impl<T> AsMut<[T]> for [T; 5]
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impl<T> AsMut<[T]> for [T; 6]
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impl<T> AsMut<[T]> for [T; 7]
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impl<T> AsMut<[T]> for [T; 8]
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impl<T> AsMut<[T]> for [T; 9]
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impl<T> AsMut<[T]> for [T; 10]
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impl<T> AsMut<[T]> for [T; 11]
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impl<T> AsMut<[T]> for [T; 12]
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impl<T> AsMut<[T]> for [T; 13]
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impl<T> AsMut<[T]> for [T; 14]
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impl<T> AsMut<[T]> for [T; 15]
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impl<T> AsMut<[T]> for [T; 16]
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impl<T> AsMut<[T]> for [T; 17]
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impl<T> AsMut<[T]> for [T; 18]
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impl<T> AsMut<[T]> for [T; 19]
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impl<T> AsMut<[T]> for [T; 20]
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impl<T> AsMut<[T]> for [T; 21]
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impl<T> AsMut<[T]> for [T; 22]
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impl<T> AsMut<[T]> for [T; 23]
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impl<T> AsMut<[T]> for [T; 24]
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impl<T> AsMut<[T]> for [T; 25]
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impl<T> AsMut<[T]> for [T; 26]
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impl<T> AsMut<[T]> for [T; 27]
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impl<T> AsMut<[T]> for [T; 28]
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impl<T> AsMut<[T]> for [T; 29]
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impl<T> AsMut<[T]> for [T; 30]
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impl<T> AsMut<[T]> for [T; 31]
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impl<T> AsMut<[T]> for [T; 32]
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impl<T> AsMut<[T]> for [T]
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impl<T: ?Sized, U: ?Sized, '_> AsMut<U> for &'_ mut T where
T: AsMut<U>,
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T: AsMut<U>,