Trait proc_bitfield::UnsafeFrom

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pub trait UnsafeFrom<T> {
    unsafe fn unsafe_from(_: T) -> Self;
}

Expand description

Unsafe equivalent of From.

Used to do unsafe value-to-value conversions while consuming the input value. It is the reciprocal of UnsafeInto.

One should always prefer implementing UnsafeFrom over UnsafeInto because implementing UnsafeFrom automatically provides one with an implementation of UnsafeInto thanks to the blanket implementation.

Prefer using UnsafeInto over using UnsafeFrom when specifying trait bounds on a generic function. This way, types that directly implement UnsafeInto can be used as arguments as well.

Note: This trait must not fail. The UnsafeFrom trait is intended for unsafe but perfect conversions. If the conversion can fail or is not perfect, use TryFrom.

Generic Implementations

UnsafeFrom<T> for U implies UnsafeInto<U> for T
UnsafeFrom is reflexive, which means that UnsafeFrom<T> for T is implemented
From<T> for U implies UnsafeFrom<T> for U

Required Methods

source

unsafe fn unsafe_from(_: T) -> Self

Unsafely converts to this type from the input type.

Implementors