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The warning diagnostics of the usage of std::intrinsics::copy_nonoverlapping is misleading #139505
Description
Code
fn main() {
let a = 10;
let mut b;
unsafe {
std::ptr::copy_nonoverlapping(a.as_ptr(), b.as_mut_ptr(), std::mem::sizeof::<i32>());
}
}Current output
use of deprecated module `std::intrinsics`: import this function via `std::mem` insteadDesired output
Either
use of deprecated module `std::intrinsics`: import this function via `std::ptr` insteador
this function should be added into std::mem module.
Rationale and extra context
No response
Other cases
Rust Version
rustc 1.86.0 (872aa6e349 2025-04-01)
binary: rustc
commit-hash: 872aa6e34902620b5f406a0cbef652085a3c54b1
commit-date: 2025-04-01
host: x86_64-unknown-linux-gnu
release: 1.86.0
LLVM version: 19.1.7Anything else?
No response
Activity
[-]The warning diagnostics of the usage of `std::intrinsics::copy_nonoverlapping` in 1.86 is misleading[/-][+]The warning diagnostics of the usage of `std::intrinsics::copy_nonoverlapping` is misleading[/+]smanilov commentedon Apr 8, 2025
Looks like an easy fix, taking this on as a first issue.
RalfJung commentedon Apr 8, 2025
@OscarTHZhang your code example does not compile. And it uses
std::ptrso even if it compiled it would not show a deprecation warning. Could you fix the issue description? :)Rollup merge of rust-lang#139526 - smanilov:issue-139505, r=RalfJung
Unrolled build for rust-lang#139526
Rollup merge of rust-lang#139526 - smanilov:issue-139505, r=RalfJung