@@ -491,7 +491,7 @@ impl<T> BTreeSet<T> {
491491 /// ```
492492 /// use std::collections::BTreeSet;
493493 ///
494- /// let set: BTreeSet<_> = [1, 2, 3].iter().cloned().collect( );
494+ /// let set = BTreeSet::from( [1, 2, 3]);
495495 /// assert_eq!(set.contains(&1), true);
496496 /// assert_eq!(set.contains(&4), false);
497497 /// ```
@@ -515,7 +515,7 @@ impl<T> BTreeSet<T> {
515515 /// ```
516516 /// use std::collections::BTreeSet;
517517 ///
518- /// let set: BTreeSet<_> = [1, 2, 3].iter().cloned().collect( );
518+ /// let set = BTreeSet::from( [1, 2, 3]);
519519 /// assert_eq!(set.get(&2), Some(&2));
520520 /// assert_eq!(set.get(&4), None);
521521 /// ```
@@ -536,7 +536,7 @@ impl<T> BTreeSet<T> {
536536 /// ```
537537 /// use std::collections::BTreeSet;
538538 ///
539- /// let a: BTreeSet<_> = [1, 2, 3].iter().cloned().collect( );
539+ /// let a = BTreeSet::from( [1, 2, 3]);
540540 /// let mut b = BTreeSet::new();
541541 ///
542542 /// assert_eq!(a.is_disjoint(&b), true);
@@ -562,7 +562,7 @@ impl<T> BTreeSet<T> {
562562 /// ```
563563 /// use std::collections::BTreeSet;
564564 ///
565- /// let sup: BTreeSet<_> = [1, 2, 3].iter().cloned().collect( );
565+ /// let sup = BTreeSet::from( [1, 2, 3]);
566566 /// let mut set = BTreeSet::new();
567567 ///
568568 /// assert_eq!(set.is_subset(&sup), true);
@@ -639,7 +639,7 @@ impl<T> BTreeSet<T> {
639639 /// ```
640640 /// use std::collections::BTreeSet;
641641 ///
642- /// let sub: BTreeSet<_> = [1, 2].iter().cloned().collect( );
642+ /// let sub = BTreeSet::from( [1, 2]);
643643 /// let mut set = BTreeSet::new();
644644 ///
645645 /// assert_eq!(set.is_superset(&sub), false);
@@ -853,7 +853,7 @@ impl<T> BTreeSet<T> {
853853 /// ```
854854 /// use std::collections::BTreeSet;
855855 ///
856- /// let mut set: BTreeSet<_> = [1, 2, 3].iter().cloned().collect( );
856+ /// let mut set = BTreeSet::from( [1, 2, 3]);
857857 /// assert_eq!(set.take(&2), Some(2));
858858 /// assert_eq!(set.take(&2), None);
859859 /// ```
@@ -876,8 +876,7 @@ impl<T> BTreeSet<T> {
876876 /// ```
877877 /// use std::collections::BTreeSet;
878878 ///
879- /// let xs = [1, 2, 3, 4, 5, 6];
880- /// let mut set: BTreeSet<i32> = xs.iter().cloned().collect();
879+ /// let mut set = BTreeSet::from([1, 2, 3, 4, 5, 6]);
881880 /// // Keep only the even numbers.
882881 /// set.retain(|&k| k % 2 == 0);
883882 /// assert!(set.iter().eq([2, 4, 6].iter()));
@@ -1009,7 +1008,7 @@ impl<T> BTreeSet<T> {
10091008 /// ```
10101009 /// use std::collections::BTreeSet;
10111010 ///
1012- /// let set: BTreeSet<usize> = [1, 2, 3].iter().cloned().collect( );
1011+ /// let set = BTreeSet::from( [1, 2, 3]);
10131012 /// let mut set_iter = set.iter();
10141013 /// assert_eq!(set_iter.next(), Some(&1));
10151014 /// assert_eq!(set_iter.next(), Some(&2));
@@ -1022,7 +1021,7 @@ impl<T> BTreeSet<T> {
10221021 /// ```
10231022 /// use std::collections::BTreeSet;
10241023 ///
1025- /// let set: BTreeSet<usize> = [3, 1, 2].iter().cloned().collect( );
1024+ /// let set = BTreeSet::from( [3, 1, 2]);
10261025 /// let mut set_iter = set.iter();
10271026 /// assert_eq!(set_iter.next(), Some(&1));
10281027 /// assert_eq!(set_iter.next(), Some(&2));
@@ -1124,7 +1123,7 @@ impl<T> IntoIterator for BTreeSet<T> {
11241123 /// ```
11251124 /// use std::collections::BTreeSet;
11261125 ///
1127- /// let set: BTreeSet<usize> = [1, 2, 3, 4].iter().cloned().collect( );
1126+ /// let set = BTreeSet::from( [1, 2, 3, 4]);
11281127 ///
11291128 /// let v: Vec<_> = set.into_iter().collect();
11301129 /// assert_eq!(v, [1, 2, 3, 4]);
@@ -1243,8 +1242,8 @@ impl<T: Ord + Clone> Sub<&BTreeSet<T>> for &BTreeSet<T> {
12431242 /// ```
12441243 /// use std::collections::BTreeSet;
12451244 ///
1246- /// let a: BTreeSet<_> = vec! [1, 2, 3].into_iter().collect( );
1247- /// let b: BTreeSet<_> = vec! [3, 4, 5].into_iter().collect( );
1245+ /// let a = BTreeSet::from( [1, 2, 3]);
1246+ /// let b = BTreeSet::from( [3, 4, 5]);
12481247 ///
12491248 /// let result = &a - &b;
12501249 /// let result_vec: Vec<_> = result.into_iter().collect();
@@ -1266,8 +1265,8 @@ impl<T: Ord + Clone> BitXor<&BTreeSet<T>> for &BTreeSet<T> {
12661265 /// ```
12671266 /// use std::collections::BTreeSet;
12681267 ///
1269- /// let a: BTreeSet<_> = vec! [1, 2, 3].into_iter().collect( );
1270- /// let b: BTreeSet<_> = vec! [2, 3, 4].into_iter().collect( );
1268+ /// let a = BTreeSet::from( [1, 2, 3]);
1269+ /// let b = BTreeSet::from( [2, 3, 4]);
12711270 ///
12721271 /// let result = &a ^ &b;
12731272 /// let result_vec: Vec<_> = result.into_iter().collect();
@@ -1289,8 +1288,8 @@ impl<T: Ord + Clone> BitAnd<&BTreeSet<T>> for &BTreeSet<T> {
12891288 /// ```
12901289 /// use std::collections::BTreeSet;
12911290 ///
1292- /// let a: BTreeSet<_> = vec! [1, 2, 3].into_iter().collect( );
1293- /// let b: BTreeSet<_> = vec! [2, 3, 4].into_iter().collect( );
1291+ /// let a = BTreeSet::from( [1, 2, 3]);
1292+ /// let b = BTreeSet::from( [2, 3, 4]);
12941293 ///
12951294 /// let result = &a & &b;
12961295 /// let result_vec: Vec<_> = result.into_iter().collect();
@@ -1312,8 +1311,8 @@ impl<T: Ord + Clone> BitOr<&BTreeSet<T>> for &BTreeSet<T> {
13121311 /// ```
13131312 /// use std::collections::BTreeSet;
13141313 ///
1315- /// let a: BTreeSet<_> = vec! [1, 2, 3].into_iter().collect( );
1316- /// let b: BTreeSet<_> = vec! [3, 4, 5].into_iter().collect( );
1314+ /// let a = BTreeSet::from( [1, 2, 3]);
1315+ /// let b = BTreeSet::from( [3, 4, 5]);
13171316 ///
13181317 /// let result = &a | &b;
13191318 /// let result_vec: Vec<_> = result.into_iter().collect();
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