Function abi_stable::pointer_trait::immutable_ref::from_raw_ptr

source · 
pub const unsafe fn from_raw_ptr<T>(from: *const T::PtrTarget) -> Option<T>
where
    T: GetPointerKind<Kind = PK_Reference>,
Expand description

Converts a raw pointer to an T pointer.

§Safety

This has the same safety requirements as from_nonnull, with the exception that null pointers are allowed.

§Example

use abi_stable::pointer_trait::immutable_ref;

unsafe {
    const X: Option<&u8> = unsafe {
        immutable_ref::from_raw_ptr(&13u8 as *const u8)
    };
    assert_eq!(*X.unwrap(), 13u8);
}