rust/tests/ui/consts/ptr_is_null.rs
2024-02-16 20:02:50 +00:00

18 lines
453 B
Rust

//@ compile-flags: --crate-type=lib
//@ check-pass
#![feature(const_ptr_is_null)]
#![allow(useless_ptr_null_checks)]
const FOO: &usize = &42;
pub const _: () = assert!(!(FOO as *const usize).is_null());
pub const _: () = assert!(!(42 as *const usize).is_null());
pub const _: () = assert!((0 as *const usize).is_null());
pub const _: () = assert!(std::ptr::null::<usize>().is_null());
pub const _: () = assert!(!("foo" as *const str).is_null());