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#![warn(clippy::ref_as_ptr)]
#![allow(clippy::unnecessary_mut_passed)]
fn f<T>(_: T) {}
fn main() {
f(&1u8 as *const _);
f(&2u32 as *const u32);
f(&3.0f64 as *const f64);
f(&4 as *const _ as *const f32);
f(&5.0f32 as *const f32 as *const u32);
f(&mut 6u8 as *const _);
f(&mut 7u32 as *const u32);
f(&mut 8.0f64 as *const f64);
f(&mut 9 as *const _ as *const f32);
f(&mut 10.0f32 as *const f32 as *const u32);
f(&mut 11u8 as *mut _);
f(&mut 12u32 as *mut u32);
f(&mut 13.0f64 as *mut f64);
f(&mut 14 as *mut _ as *const f32);
f(&mut 15.0f32 as *mut f32 as *const u32);
f(&1u8 as *const _);
f(&2u32 as *const u32);
f(&3.0f64 as *const f64);
f(&4 as *const _ as *const f32);
f(&5.0f32 as *const f32 as *const u32);
let val = 1;
f(&val as *const _);
f(&val as *const i32);
f(&val as *const _ as *const f32);
f(&val as *const i32 as *const f64);
let mut val: u8 = 2;
f(&mut val as *mut u8);
f(&mut val as *mut _);
f(&mut val as *const u8);
f(&mut val as *const _);
f(&mut val as *const u8 as *const f64);
f::<*const Option<u8>>(&mut val as *const _ as *const _);
f(&std::array::from_fn(|i| i * i) as *const [usize; 7]);
f(&mut std::array::from_fn(|i| i * i) as *const [usize; 8]);
f(&mut std::array::from_fn(|i| i * i) as *mut [usize; 9]);
let _ = &String::new() as *const _;
let _ = &mut String::new() as *mut _;
const FOO: *const String = &String::new() as *const _;
}
#[clippy::msrv = "1.75"]
fn _msrv_1_75() {
let val = &42_i32;
let mut_val = &mut 42_i32;
// `std::ptr::from_{ref, mut}` was stabilized in 1.76. Do not lint this
f(val as *const i32);
f(mut_val as *mut i32);
}
#[clippy::msrv = "1.76"]
fn _msrv_1_76() {
let val = &42_i32;
let mut_val = &mut 42_i32;
f(val as *const i32);
f(mut_val as *mut i32);
}
fn foo(val: &[u8]) {
f(val as *const _);
f(val as *const [u8]);
}
fn bar(val: &mut str) {
f(val as *mut _);
f(val as *mut str);
}
struct X<'a>(&'a i32);
impl<'a> X<'a> {
fn foo(&self) -> *const i64 {
self.0 as *const _ as *const _
}
fn bar(&mut self) -> *const i64 {
self.0 as *const _ as *const _
}
}
struct Y<'a>(&'a mut i32);
impl<'a> Y<'a> {
fn foo(&self) -> *const i64 {
self.0 as *const _ as *const _
}
fn bar(&mut self) -> *const i64 {
self.0 as *const _ as *const _
}
fn baz(&mut self) -> *const i64 {
self.0 as *mut _ as *mut _
}
}
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