pub type NonZeroI8 = NonZero<i8>;
Expand description
An integer that is known not to equal zero.
This enables some memory layout optimization.
For example, Option<NonZeroI8>
is the same size as i8
:
§Layout
NonZeroI8
is guaranteed to have the same layout and bit validity as i8
with the exception that 0
is not a valid instance.
Option<NonZeroI8>
is guaranteed to be compatible with i8
,
including in FFI.
Thanks to the null pointer optimization,
NonZeroI8
and Option<NonZeroI8>
are guaranteed to have the same size and alignment:
Aliased Type§
struct NonZeroI8(/* private fields */);