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>>
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());
Returns a copy of the contained value.
Examples
use std::cell::Cell; let c = Cell::new(5); let five = c.get();
🔬 This is a nightly-only experimental API. (cell_update
)
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);
Returns a raw pointer to the underlying data in this cell.
Examples
use std::cell::Cell; let c = Cell::new(5); let ptr = c.as_ptr();
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
Assignable element, simply self.set(input)
.
Assign the value input
to the element that self represents.
This method returns an ordering between self
and other
values if one exists. Read more
This method tests less than (for self
and other
) and is used by the <
operator. Read more
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
Auto Trait Implementations
impl<T> !RefUnwindSafe for MathCell<T>
impl<T> UnwindSafe for MathCell<T> where
T: UnwindSafe,
Blanket Implementations
Mutably borrows from an owned value. Read more