95e77648e4
Partially stabilize const_slice_from_raw_parts This doesn't stabilize methods working on mutable pointers. This pull request continues from #94946. Pinging `@rust-lang/wg-const-eval` this because I use `rustc_allow_const_fn_unstable`. I believe this is justifiable as it's already possible to use `slice::from_raw_parts` in stable by abusing `transmute`. The stable alternative to this would be to provide a stable const implementation of `std::ptr::from_raw_parts` (as it can already be implemented in stable). ```rust use std::mem; #[repr(C)] struct Slice<T> { data: *const T, len: usize, } fn main() { let data: *const i32 = [1, 2, 3, 4].as_ptr(); let len = 4; println!("{:?}", unsafe { mem::transmute::<Slice<i32>, &[i32]>(Slice { data, len }) }); } ``` `@rustbot` modify labels: +T-libs-api |
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| .. | ||
| alloc | ||
| backtrace@4e5a3f7292 | ||
| core | ||
| panic_abort | ||
| panic_unwind | ||
| portable-simd | ||
| proc_macro | ||
| profiler_builtins | ||
| rtstartup | ||
| rustc-std-workspace-alloc | ||
| rustc-std-workspace-core | ||
| rustc-std-workspace-std | ||
| std | ||
| stdarch@28335054b1 | ||
| test | ||
| unwind | ||