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avoid mixing accesses of ptrs derived from a mutable ref and parent ptrs

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This commit is contained in:
Ralf Jung 2023-02-12 15:16:27 +01:00
parent 2b3f260e74
commit c3a2e7a809
1 changed files with 3 additions and 3 deletions
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6
library/core/tests/ptr.rs
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@ -25,7 +25,7 @@ fn test() {
snd: isize, snd: isize,
} }
let mut p = Pair { fst: 10, snd: 20 }; let mut p = Pair { fst: 10, snd: 20 };
let pptr: *mut Pair = &mut p; let pptr: *mut Pair = addr_of_mut!(p);
let iptr: *mut isize = pptr as *mut isize; let iptr: *mut isize = pptr as *mut isize;
assert_eq!(*iptr, 10); assert_eq!(*iptr, 10);
*iptr = 30; *iptr = 30;
@ -1070,8 +1070,8 @@ fn swap_copy_untyped() {
let mut x = 5u8; let mut x = 5u8;
let mut y = 6u8; let mut y = 6u8;
let ptr1 = &mut x as *mut u8 as *mut bool; let ptr1 = addr_of_mut!(x).cast::<bool>();
let ptr2 = &mut y as *mut u8 as *mut bool; let ptr2 = addr_of_mut!(y).cast::<bool>();
unsafe { unsafe {
ptr::swap(ptr1, ptr2); ptr::swap(ptr1, ptr2);