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#![warn(clippy::cast_slice_from_raw_parts)]
const fn require_raw_slice_ptr<T>(_: *const [T]) {}
fn main() {
let mut vec = vec![0u8; 1];
let ptr: *const u8 = vec.as_ptr();
let mptr = vec.as_mut_ptr();
let _: *const [u8] = unsafe { std::ptr::slice_from_raw_parts(ptr, 1) };
//~^ cast_slice_from_raw_parts
let _: *const [u8] = unsafe { std::ptr::slice_from_raw_parts_mut(mptr, 1) };
//~^ cast_slice_from_raw_parts
let _: *const [u8] = std::ptr::slice_from_raw_parts(ptr, 1);
//~^ cast_slice_from_raw_parts
{
use core::slice;
let _: *const [u8] = std::ptr::slice_from_raw_parts(ptr, 1);
//~^ cast_slice_from_raw_parts
use slice as one;
let _: *const [u8] = std::ptr::slice_from_raw_parts(ptr, 1);
//~^ cast_slice_from_raw_parts
}
{
use std::slice;
let _: *const [u8] = std::ptr::slice_from_raw_parts(ptr, 1);
//~^ cast_slice_from_raw_parts
use slice as one;
let _: *const [u8] = std::ptr::slice_from_raw_parts(ptr, 1);
//~^ cast_slice_from_raw_parts
}
// implicit cast
{
let _: *const [u8] = unsafe { std::ptr::slice_from_raw_parts(ptr, 1) };
//~^ cast_slice_from_raw_parts
let _: *mut [u8] = unsafe { std::ptr::slice_from_raw_parts_mut(mptr, 1) };
//~^ cast_slice_from_raw_parts
require_raw_slice_ptr(unsafe { std::ptr::slice_from_raw_parts(ptr, 1) });
//~^ cast_slice_from_raw_parts
}
// implicit cast in const context
const {
const PTR: *const u8 = std::ptr::null();
const MPTR: *mut u8 = std::ptr::null_mut();
let _: *const [u8] = unsafe { std::ptr::slice_from_raw_parts(PTR, 1) };
//~^ cast_slice_from_raw_parts
let _: *mut [u8] = unsafe { std::ptr::slice_from_raw_parts_mut(MPTR, 1) };
//~^ cast_slice_from_raw_parts
require_raw_slice_ptr(unsafe { std::ptr::slice_from_raw_parts(PTR, 1) });
//~^ cast_slice_from_raw_parts
};
}
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