1.0.0[−][src]Trait alloc::borrow::BorrowMut
A trait for mutably borrowing data.
As a companion to Borrow<T>
this trait allows a type to borrow as
an underlying type by providing a mutable reference. See Borrow<T>
for more information on borrowing as another type.
Required methods
fn borrow_mut(&mut self) -> &mut Borrowed
Mutably borrows from an owned value.
Examples
use std::borrow::BorrowMut; fn check<T: BorrowMut<[i32]>>(mut v: T) { assert_eq!(&mut [1, 2, 3], v.borrow_mut()); } let v = vec![1, 2, 3]; check(v);
Implementors
impl BorrowMut<str> for String
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fn borrow_mut(&mut self) -> &mut str
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impl<'_, T> BorrowMut<T> for &'_ mut T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,