::
ptr Function null1.0.0 (const: 1.24.0) · Sourcepub const fn null<T>() -> *const Twhere T:
Thin + ?
Sized,
Expand description
Creates a null raw pointer.
This function is equivalent to zero-initializing the pointer: MaybeUninit::<*const T>::zeroed().assume_init()
. The resulting pointer has the address 0.
use std::ptr;
let p: *const i32 = ptr::null();
assert!(p.is_null());
assert_eq!(p as usize, 0); // this pointer has the address 0
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