Trait tracing_core::stdlib::num::ZeroablePrimitive

source · 
pub unsafe trait ZeroablePrimitive: Sized + Copy + Sealed { }
🔬This is a nightly-only experimental API. (nonzero_internals)
Expand description

A marker trait for primitive types which can be zero.

This is an implementation detail for NonZero<T> which may disappear or be replaced at any time.

§Safety

Types implementing this trait must be primitives that are valid when zeroed.

The associated Self::NonZeroInner type must have the same size+align as Self, but with a niche and bit validity making it so the following transmutes are sound:

  • Self::NonZeroInner to Option<Self::NonZeroInner>
  • Option<Self::NonZeroInner> to Self

(And, consequently, Self::NonZeroInner to Self.)

Object Safety§

This trait is not object safe.

Implementors§