Struct ndarray::MathCell [−][src]
#[repr(transparent)]pub struct MathCell<T>(_);
Expand description
A transparent wrapper of Cell<T>
which is identical in every way, except
it will implement arithmetic operators as well.
The purpose of MathCell
is to be used from .cell_view().
The MathCell
derefs to Cell
, so all the cell’s methods are available.
Implementations
Methods from Deref<Target = Cell<T>>
pub fn swap(&self, other: &Cell<T>)
1.17.0[src]
pub fn swap(&self, other: &Cell<T>)
1.17.0[src]Swaps the values of two Cells.
Difference with std::mem::swap
is that this function doesn’t require &mut
reference.
Examples
use std::cell::Cell; let c1 = Cell::new(5i32); let c2 = Cell::new(10i32); c1.swap(&c2); assert_eq!(10, c1.get()); assert_eq!(5, c2.get());
pub fn get(&self) -> T
1.0.0[src]
pub fn get(&self) -> T
1.0.0[src]Returns a copy of the contained value.
Examples
use std::cell::Cell; let c = Cell::new(5); let five = c.get();
pub fn update<F>(&self, f: F) -> T where
F: FnOnce(T) -> T,
[src]
🔬 This is a nightly-only experimental API. (cell_update
)
pub fn update<F>(&self, f: F) -> T where
F: FnOnce(T) -> T,
[src]cell_update
)Updates the contained value using a function and returns the new value.
Examples
#![feature(cell_update)] use std::cell::Cell; let c = Cell::new(5); let new = c.update(|x| x + 1); assert_eq!(new, 6); assert_eq!(c.get(), 6);
pub fn as_slice_of_cells(&self) -> &[Cell<T>]ⓘ
1.37.0[src]
pub fn as_slice_of_cells(&self) -> &[Cell<T>]ⓘ
1.37.0[src]Returns a &[Cell<T>]
from a &Cell<[T]>
Examples
use std::cell::Cell; let slice: &mut [i32] = &mut [1, 2, 3]; let cell_slice: &Cell<[i32]> = Cell::from_mut(slice); let slice_cell: &[Cell<i32>] = cell_slice.as_slice_of_cells(); assert_eq!(slice_cell.len(), 3);
Trait Implementations
impl<'a, T> AssignElem<T> for &'a MathCell<T>
[src]
impl<'a, T> AssignElem<T> for &'a MathCell<T>
[src]Assignable element, simply self.set(input)
.
fn assign_elem(self, input: T)
[src]
fn assign_elem(self, input: T)
[src]Assign the value input
to the element that self represents.
impl<T> Ord for MathCell<T> where
T: Copy + Ord,
[src]
impl<T> Ord for MathCell<T> where
T: Copy + Ord,
[src]impl<T> PartialOrd<MathCell<T>> for MathCell<T> where
T: Copy + PartialOrd,
[src]
impl<T> PartialOrd<MathCell<T>> for MathCell<T> where
T: Copy + PartialOrd,
[src]fn partial_cmp(&self, rhs: &Self) -> Option<Ordering>
[src]
fn partial_cmp(&self, rhs: &Self) -> Option<Ordering>
[src]This method returns an ordering between self
and other
values if one exists. Read more
fn lt(&self, rhs: &Self) -> bool
[src]
fn lt(&self, rhs: &Self) -> bool
[src]This method tests less than (for self
and other
) and is used by the <
operator. Read more
fn le(&self, rhs: &Self) -> bool
[src]
fn le(&self, rhs: &Self) -> bool
[src]This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
impl<T> Eq for MathCell<T> where
T: Copy + Eq,
[src]
T: Copy + Eq,
Auto Trait Implementations
impl<T> !RefUnwindSafe for MathCell<T>
impl<T> Send for MathCell<T> where
T: Send,
T: Send,
impl<T> !Sync for MathCell<T>
impl<T> Unpin for MathCell<T> where
T: Unpin,
T: Unpin,
impl<T> UnwindSafe for MathCell<T> where
T: UnwindSafe,
T: UnwindSafe,
Blanket Implementations
impl<T> BorrowMut<T> for T where
T: ?Sized,
[src]
impl<T> BorrowMut<T> for T where
T: ?Sized,
[src]pub fn borrow_mut(&mut self) -> &mut T
[src]
pub fn borrow_mut(&mut self) -> &mut T
[src]Mutably borrows from an owned value. Read more
impl<T> Pointable for T
impl<T> Pointable for T
impl<T> ToOwned for T where
T: Clone,
[src]
impl<T> ToOwned for T where
T: Clone,
[src]type Owned = T
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
[src]
pub fn to_owned(&self) -> T
[src]Creates owned data from borrowed data, usually by cloning. Read more
pub fn clone_into(&self, target: &mut T)
[src]
pub fn clone_into(&self, target: &mut T)
[src]🔬 This is a nightly-only experimental API. (toowned_clone_into
)
recently added
Uses borrowed data to replace owned data, usually by cloning. Read more