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document that ptr cmp is unsigned #136364

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Feb 1, 2025
Merged

document that ptr cmp is unsigned #136364

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6 changes: 4 additions & 2 deletions library/core/src/ptr/const_ptr.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1681,7 +1681,7 @@ impl<T, const N: usize> *const [T; N] {
}
}

// Equality for pointers
/// Pointer equality is by address, as produced by the [`<*const T>::addr`](pointer::addr) method.
#[stable(feature = "rust1", since = "1.0.0")]
impl<T: ?Sized> PartialEq for *const T {
#[inline]
Expand All @@ -1691,10 +1691,11 @@ impl<T: ?Sized> PartialEq for *const T {
}
}

/// Pointer equality is an equivalence relation.
#[stable(feature = "rust1", since = "1.0.0")]
impl<T: ?Sized> Eq for *const T {}

// Comparison for pointers
/// Pointer comparison is by address, as produced by the `[`<*const T>::addr`](pointer::addr)` method.
#[stable(feature = "rust1", since = "1.0.0")]
impl<T: ?Sized> Ord for *const T {
#[inline]
Expand All @@ -1710,6 +1711,7 @@ impl<T: ?Sized> Ord for *const T {
}
}

/// Pointer comparison is by address, as produced by the `[`<*const T>::addr`](pointer::addr)` method.
#[stable(feature = "rust1", since = "1.0.0")]
impl<T: ?Sized> PartialOrd for *const T {
#[inline]
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5 changes: 4 additions & 1 deletion library/core/src/ptr/mut_ptr.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -2097,7 +2097,7 @@ impl<T, const N: usize> *mut [T; N] {
}
}

// Equality for pointers
/// Pointer equality is by address, as produced by the [`<*mut T>::addr`](pointer::addr) method.
#[stable(feature = "rust1", since = "1.0.0")]
impl<T: ?Sized> PartialEq for *mut T {
#[inline(always)]
Expand All @@ -2107,9 +2107,11 @@ impl<T: ?Sized> PartialEq for *mut T {
}
}

/// Pointer equality is an equivalence relation.
#[stable(feature = "rust1", since = "1.0.0")]
impl<T: ?Sized> Eq for *mut T {}

/// Pointer comparison is by address, as produced by the [`<*mut T>::addr`](pointer::addr) method.
#[stable(feature = "rust1", since = "1.0.0")]
impl<T: ?Sized> Ord for *mut T {
#[inline]
Expand All @@ -2125,6 +2127,7 @@ impl<T: ?Sized> Ord for *mut T {
}
}

/// Pointer comparison is by address, as produced by the [`<*mut T>::addr`](pointer::addr) method.
#[stable(feature = "rust1", since = "1.0.0")]
impl<T: ?Sized> PartialOrd for *mut T {
#[inline(always)]
Expand Down
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