Struct petgraph::matrix_graph::NotZero
source · pub struct NotZero<T>(/* private fields */);
Expand description
NotZero
is used to optimize the memory usage of edge weights E
in a
MatrixGraph
, replacing the default Option<E>
sentinel.
Pre-requisite: edge weight should implement Zero
.
Note that if you’re already using the standard non-zero types (such as NonZeroU32
), you don’t
have to use this wrapper and can leave the default Null
type argument.
Trait Implementations§
impl<T: Zero> Nullable for NotZero<T>
Auto Trait Implementations§
impl<T> Freeze for NotZero<T>where
T: Freeze,
impl<T> RefUnwindSafe for NotZero<T>where
T: RefUnwindSafe,
impl<T> Send for NotZero<T>where
T: Send,
impl<T> Sync for NotZero<T>where
T: Sync,
impl<T> Unpin for NotZero<T>where
T: Unpin,
impl<T> UnwindSafe for NotZero<T>where
T: UnwindSafe,
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more