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