pub type NonZeroU16 = NonZero<u16>;Expand description
A u16 that is known not to equal zero.
This enables some memory layout optimization.
For example, Option<NonZeroU16> is the same size as u16:
§Layout
NonZeroU16 is guaranteed to have the same layout and bit validity as u16
with the exception that 0 is not a valid instance.
Option<NonZeroU16> is guaranteed to be compatible with u16,
including in FFI.
Thanks to the null pointer optimization,
NonZeroU16 and Option<NonZeroU16>
are guaranteed to have the same size and alignment:
Aliased Type§
struct NonZeroU16(/* private fields */);