# Function std::ptr::null

1.0.0 (const: 1.24.0) · source ·

    pub 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.

## Examples

    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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