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lines changed Original file line number Diff line number Diff line change @@ -747,6 +747,7 @@ impl<T> Vec<T> {
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/// Basic usage:
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///
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/// ```
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+ /// #![feature(vec_peek_mut)]
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/// let mut vec = Vec::new();
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/// assert!(vec.peek_mut().is_none());
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///
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#![ feature( trusted_random_access) ]
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#![ feature( try_reserve_kind) ]
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#![ feature( try_trait_v2) ]
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- #![ feature( vec_peek_mut) ]
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// tidy-alphabetical-end
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//
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// Language features:
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#![ feature( vec_deque_truncate_front) ]
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#![ feature( unique_rc_arc) ]
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#![ feature( macro_metavar_expr_concat) ]
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+ #![ feature( vec_peek_mut) ]
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#![ allow( internal_features) ]
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#![ deny( fuzzy_provenance_casts) ]
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#![ deny( unsafe_op_in_unsafe_fn) ]
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