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Fix mutability in doc tests for `BTreeSet` cursors · model-checking/verify-rust-std@86ea79f

@@ -1250,16 +1250,16 @@ impl<T, A: Allocator + Clone> BTreeSet<T, A> {

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/// let mut set = BTreeSet::from([1, 2, 3, 4]);

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///

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/// let mut cursor = set.lower_bound_mut(Bound::Included(&2));

1253-

/// assert_eq!(cursor.peek_prev(), Some(&mut 1));

1254-

/// assert_eq!(cursor.peek_next(), Some(&mut 2));

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/// assert_eq!(cursor.peek_prev(), Some(&1));

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/// assert_eq!(cursor.peek_next(), Some(&2));

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///

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/// let mut cursor = set.lower_bound_mut(Bound::Excluded(&2));

1257-

/// assert_eq!(cursor.peek_prev(), Some(&mut 2));

1258-

/// assert_eq!(cursor.peek_next(), Some(&mut 3));

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/// assert_eq!(cursor.peek_prev(), Some(&2));

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/// assert_eq!(cursor.peek_next(), Some(&3));

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///

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/// let mut cursor = set.lower_bound_mut(Bound::Unbounded);

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/// assert_eq!(cursor.peek_prev(), None);

1262-

/// assert_eq!(cursor.peek_next(), Some(&mut 1));

1262+

/// assert_eq!(cursor.peek_next(), Some(&1));

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/// ```

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#[unstable(feature = "btree_cursors", issue = "107540")]

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pub fn lower_bound_mut<Q: ?Sized>(&mut self, bound: Bound<&Q>) -> CursorMut<'_, T, A>

@@ -1336,15 +1336,15 @@ impl<T, A: Allocator + Clone> BTreeSet<T, A> {

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/// let mut set = BTreeSet::from([1, 2, 3, 4]);

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///

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/// let mut cursor = unsafe { set.upper_bound_mut(Bound::Included(&3)) };

1339-

/// assert_eq!(cursor.peek_prev(), Some(&mut 3));

1340-

/// assert_eq!(cursor.peek_next(), Some(&mut 4));

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/// assert_eq!(cursor.peek_prev(), Some(&3));

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/// assert_eq!(cursor.peek_next(), Some(&4));

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///

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/// let mut cursor = unsafe { set.upper_bound_mut(Bound::Excluded(&3)) };

1343-

/// assert_eq!(cursor.peek_prev(), Some(&mut 2));

1344-

/// assert_eq!(cursor.peek_next(), Some(&mut 3));

1343+

/// assert_eq!(cursor.peek_prev(), Some(&2));

1344+

/// assert_eq!(cursor.peek_next(), Some(&3));

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///

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/// let mut cursor = unsafe { set.upper_bound_mut(Bound::Unbounded) };

1347-

/// assert_eq!(cursor.peek_prev(), Some(&mut 4));

1347+

/// assert_eq!(cursor.peek_prev(), Some(&4));

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/// assert_eq!(cursor.peek_next(), None);

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/// ```

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#[unstable(feature = "btree_cursors", issue = "107540")]