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https://github.com/rust-lang/rust.git
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stabilize new Range type and iterator
stabilizes `core::range::Range` stabilizes `core::range::RangeIter` stabilizes `std::range` which was missed in prior PRs Updates docs to reflect stabilization (removed "experimental") `RangeIter::remainder` is excluded from stabilization
This commit is contained in:
Peter Jaszkowiak
@@ -2,9 +2,13 @@
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#![cfg_attr(all(feature = "nightly", test), feature(stmt_expr_attributes))]
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#![cfg_attr(all(feature = "nightly", test), feature(test))]
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#![cfg_attr(feature = "nightly", feature(extend_one, step_trait))]
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#![cfg_attr(feature = "nightly", feature(new_range_api))]
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// tidy-alphabetical-end
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// FIXME(#125687): new_range_api recently stabilized
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// Remove this when it hits stable. cfg(bootstrap)
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#![allow(stable_features)]
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#![cfg_attr(feature = "nightly", feature(new_range_api))]
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pub mod bit_set;
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#[cfg(feature = "nightly")]
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pub mod interval;
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+24
-32
@@ -1,19 +1,18 @@
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//! # Experimental replacement range types
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//! # Replacement range types
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//!
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//! The types within this module are meant to replace the existing
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//! `Range`, `RangeInclusive`, and `RangeFrom` types in a future edition.
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//! The types within this module are meant to replace the legacy `Range`,
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//! `RangeInclusive`, `RangeToInclusive` and `RangeFrom` types in a future edition.
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//!
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//! ```
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//! #![feature(new_range_api)]
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//! use core::range::{Range, RangeFrom, RangeInclusive};
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//! use core::range::{Range, RangeFrom, RangeInclusive, RangeToInclusive};
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//!
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//! let arr = [0, 1, 2, 3, 4];
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//! assert_eq!(arr[ .. ], [0, 1, 2, 3, 4]);
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//! assert_eq!(arr[ .. 3 ], [0, 1, 2 ]);
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//! assert_eq!(arr[ ..=3 ], [0, 1, 2, 3 ]);
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//! assert_eq!(arr[ RangeFrom::from(1.. )], [ 1, 2, 3, 4]);
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//! assert_eq!(arr[ Range::from(1..3 )], [ 1, 2 ]);
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//! assert_eq!(arr[RangeInclusive::from(1..=3)], [ 1, 2, 3 ]);
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//! assert_eq!(arr[ .. ], [0, 1, 2, 3, 4]);
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//! assert_eq!(arr[ .. 3 ], [0, 1, 2 ]);
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//! assert_eq!(arr[RangeToInclusive::from( ..=3)], [0, 1, 2, 3 ]);
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//! assert_eq!(arr[ RangeFrom::from(1.. )], [ 1, 2, 3, 4]);
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//! assert_eq!(arr[ Range::from(1..3 )], [ 1, 2 ]);
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//! assert_eq!(arr[ RangeInclusive::from(1..=3)], [ 1, 2, 3 ]);
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//! ```
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use crate::fmt;
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@@ -21,7 +20,7 @@
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mod iter;
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#[unstable(feature = "new_range_api", issue = "125687")]
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#[unstable(feature = "new_range_api_legacy", issue = "125687")]
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pub mod legacy;
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#[doc(inline)]
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@@ -31,7 +30,7 @@
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#[stable(feature = "new_range_inclusive_api", since = "1.95.0")]
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pub use iter::RangeInclusiveIter;
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#[doc(inline)]
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#[unstable(feature = "new_range_api", issue = "125687")]
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#[stable(feature = "new_range_api", since = "CURRENT_RUSTC_VERSION")]
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pub use iter::RangeIter;
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// FIXME(#125687): re-exports temporarily removed
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@@ -57,7 +56,6 @@
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/// # Examples
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///
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/// ```
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/// #![feature(new_range_api)]
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/// use core::range::Range;
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///
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/// assert_eq!(Range::from(3..5), Range { start: 3, end: 5 });
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@@ -66,17 +64,17 @@
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#[lang = "RangeCopy"]
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#[derive(Copy, Hash)]
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#[derive_const(Clone, Default, PartialEq, Eq)]
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#[unstable(feature = "new_range_api", issue = "125687")]
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#[stable(feature = "new_range_api", since = "CURRENT_RUSTC_VERSION")]
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pub struct Range<Idx> {
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/// The lower bound of the range (inclusive).
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#[unstable(feature = "new_range_api", issue = "125687")]
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#[stable(feature = "new_range_api", since = "CURRENT_RUSTC_VERSION")]
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pub start: Idx,
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/// The upper bound of the range (exclusive).
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#[unstable(feature = "new_range_api", issue = "125687")]
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#[stable(feature = "new_range_api", since = "CURRENT_RUSTC_VERSION")]
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pub end: Idx,
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}
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#[unstable(feature = "new_range_api", issue = "125687")]
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#[stable(feature = "new_range_api", since = "CURRENT_RUSTC_VERSION")]
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impl<Idx: fmt::Debug> fmt::Debug for Range<Idx> {
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fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result {
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self.start.fmt(fmt)?;
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@@ -94,7 +92,6 @@ impl<Idx: Step> Range<Idx> {
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/// # Examples
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///
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/// ```
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/// #![feature(new_range_api)]
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/// use core::range::Range;
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///
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/// let mut i = Range::from(3..9).iter().map(|n| n*n);
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@@ -102,7 +99,7 @@ impl<Idx: Step> Range<Idx> {
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/// assert_eq!(i.next(), Some(16));
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/// assert_eq!(i.next(), Some(25));
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/// ```
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#[unstable(feature = "new_range_api", issue = "125687")]
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#[stable(feature = "new_range_api", since = "CURRENT_RUSTC_VERSION")]
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#[inline]
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pub fn iter(&self) -> RangeIter<Idx> {
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self.clone().into_iter()
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@@ -115,7 +112,6 @@ impl<Idx: PartialOrd<Idx>> Range<Idx> {
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/// # Examples
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///
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/// ```
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/// #![feature(new_range_api)]
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/// use core::range::Range;
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///
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/// assert!(!Range::from(3..5).contains(&2));
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@@ -132,7 +128,7 @@ impl<Idx: PartialOrd<Idx>> Range<Idx> {
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/// assert!(!Range::from(f32::NAN..1.0).contains(&0.5));
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/// ```
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#[inline]
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#[unstable(feature = "new_range_api", issue = "125687")]
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#[stable(feature = "new_range_api", since = "CURRENT_RUSTC_VERSION")]
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#[rustc_const_unstable(feature = "const_range", issue = "none")]
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pub const fn contains<U>(&self, item: &U) -> bool
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where
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@@ -147,7 +143,6 @@ pub const fn contains<U>(&self, item: &U) -> bool
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/// # Examples
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///
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/// ```
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/// #![feature(new_range_api)]
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/// use core::range::Range;
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///
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/// assert!(!Range::from(3..5).is_empty());
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@@ -158,7 +153,6 @@ pub const fn contains<U>(&self, item: &U) -> bool
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/// The range is empty if either side is incomparable:
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///
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/// ```
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/// #![feature(new_range_api)]
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/// use core::range::Range;
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///
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/// assert!(!Range::from(3.0..5.0).is_empty());
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@@ -166,7 +160,7 @@ pub const fn contains<U>(&self, item: &U) -> bool
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/// assert!( Range::from(f32::NAN..5.0).is_empty());
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/// ```
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#[inline]
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#[unstable(feature = "new_range_api", issue = "125687")]
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#[stable(feature = "new_range_api", since = "CURRENT_RUSTC_VERSION")]
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#[rustc_const_unstable(feature = "const_range", issue = "none")]
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pub const fn is_empty(&self) -> bool
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where
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@@ -176,7 +170,7 @@ pub const fn is_empty(&self) -> bool
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}
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}
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#[unstable(feature = "new_range_api", issue = "125687")]
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#[stable(feature = "new_range_api", since = "CURRENT_RUSTC_VERSION")]
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#[rustc_const_unstable(feature = "const_range", issue = "none")]
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impl<T> const RangeBounds<T> for Range<T> {
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fn start_bound(&self) -> Bound<&T> {
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@@ -193,7 +187,7 @@ fn end_bound(&self) -> Bound<&T> {
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/// If you need to use this implementation where `T` is unsized,
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/// consider using the `RangeBounds` impl for a 2-tuple of [`Bound<&T>`][Bound],
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/// i.e. replace `start..end` with `(Bound::Included(start), Bound::Excluded(end))`.
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#[unstable(feature = "new_range_api", issue = "125687")]
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#[stable(feature = "new_range_api", since = "CURRENT_RUSTC_VERSION")]
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#[rustc_const_unstable(feature = "const_range", issue = "none")]
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impl<T> const RangeBounds<T> for Range<&T> {
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fn start_bound(&self) -> Bound<&T> {
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@@ -204,8 +198,7 @@ fn end_bound(&self) -> Bound<&T> {
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}
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}
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// #[unstable(feature = "range_into_bounds", issue = "136903")]
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#[unstable(feature = "new_range_api", issue = "125687")]
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#[unstable(feature = "range_into_bounds", issue = "136903")]
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#[rustc_const_unstable(feature = "const_range", issue = "none")]
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impl<T> const IntoBounds<T> for Range<T> {
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fn into_bounds(self) -> (Bound<T>, Bound<T>) {
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@@ -213,7 +206,7 @@ fn into_bounds(self) -> (Bound<T>, Bound<T>) {
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}
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}
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#[unstable(feature = "new_range_api", issue = "125687")]
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#[stable(feature = "new_range_api", since = "CURRENT_RUSTC_VERSION")]
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#[rustc_const_unstable(feature = "const_convert", issue = "143773")]
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impl<T> const From<Range<T>> for legacy::Range<T> {
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#[inline]
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@@ -221,8 +214,7 @@ fn from(value: Range<T>) -> Self {
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Self { start: value.start, end: value.end }
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}
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}
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#[unstable(feature = "new_range_api", issue = "125687")]
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#[stable(feature = "new_range_api", since = "CURRENT_RUSTC_VERSION")]
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#[rustc_const_unstable(feature = "const_convert", issue = "143773")]
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impl<T> const From<legacy::Range<T>> for Range<T> {
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#[inline]
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@@ -6,7 +6,7 @@
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use crate::{intrinsics, mem};
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/// By-value [`Range`] iterator.
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#[unstable(feature = "new_range_api", issue = "125687")]
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#[stable(feature = "new_range_api", since = "CURRENT_RUSTC_VERSION")]
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#[derive(Debug, Clone)]
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pub struct RangeIter<A>(legacy::Range<A>);
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@@ -17,7 +17,6 @@ impl<A> RangeIter<A> {
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/// # Examples
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///
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/// ```
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/// #![feature(new_range_api)]
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/// #![feature(new_range_remainder)]
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///
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/// let range = core::range::Range::from(3..11);
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@@ -65,7 +64,7 @@ unsafe impl TrustedRandomAccessNoCoerce for RangeIter<$t> {
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u64 i64
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}
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#[unstable(feature = "new_range_api", issue = "125687")]
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#[stable(feature = "new_range_api", since = "CURRENT_RUSTC_VERSION")]
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impl<A: Step> Iterator for RangeIter<A> {
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type Item = A;
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@@ -133,7 +132,7 @@ unsafe fn __iterator_get_unchecked(&mut self, idx: usize) -> Self::Item
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}
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}
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#[unstable(feature = "new_range_api", issue = "125687")]
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#[stable(feature = "new_range_api", since = "CURRENT_RUSTC_VERSION")]
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impl<A: Step> DoubleEndedIterator for RangeIter<A> {
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#[inline]
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fn next_back(&mut self) -> Option<A> {
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@@ -154,10 +153,10 @@ fn advance_back_by(&mut self, n: usize) -> Result<(), NonZero<usize>> {
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#[unstable(feature = "trusted_len", issue = "37572")]
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unsafe impl<A: TrustedStep> TrustedLen for RangeIter<A> {}
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#[unstable(feature = "new_range_api", issue = "125687")]
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#[stable(feature = "new_range_api", since = "CURRENT_RUSTC_VERSION")]
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impl<A: Step> FusedIterator for RangeIter<A> {}
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#[unstable(feature = "new_range_api", issue = "125687")]
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#[stable(feature = "new_range_api", since = "CURRENT_RUSTC_VERSION")]
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impl<A: Step> IntoIterator for Range<A> {
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type Item = A;
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type IntoIter = RangeIter<A>;
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@@ -300,7 +299,7 @@ fn into_iter(self) -> Self::IntoIter {
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// since e.g. `(0..=u64::MAX).len()` would be `u64::MAX + 1`.
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macro_rules! range_exact_iter_impl {
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($($t:ty)*) => ($(
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#[unstable(feature = "new_range_api", issue = "125687")]
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#[stable(feature = "new_range_api", since = "CURRENT_RUSTC_VERSION")]
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impl ExactSizeIterator for RangeIter<$t> { }
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)*)
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}
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@@ -125,7 +125,7 @@ impl Sealed for ops::RangeToInclusive<usize> {}
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#[stable(feature = "slice_index_with_ops_bound_pair", since = "1.53.0")]
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impl Sealed for (ops::Bound<usize>, ops::Bound<usize>) {}
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#[unstable(feature = "new_range_api", issue = "125687")]
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#[stable(feature = "new_range_api", since = "CURRENT_RUSTC_VERSION")]
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impl Sealed for range::Range<usize> {}
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#[stable(feature = "new_range_inclusive_api", since = "1.95.0")]
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impl Sealed for range::RangeInclusive<usize> {}
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@@ -458,7 +458,7 @@ fn index_mut(self, slice: &mut [T]) -> &mut [T] {
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}
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}
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#[unstable(feature = "new_range_api", issue = "125687")]
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#[stable(feature = "new_range_api", since = "CURRENT_RUSTC_VERSION")]
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#[rustc_const_unstable(feature = "const_index", issue = "143775")]
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unsafe impl<T> const SliceIndex<[T]> for range::Range<usize> {
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type Output = [T];
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@@ -258,7 +258,7 @@ fn index_mut(self, slice: &mut str) -> &mut Self::Output {
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}
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}
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#[unstable(feature = "new_range_api", issue = "125687")]
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#[stable(feature = "new_range_api", since = "CURRENT_RUSTC_VERSION")]
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#[rustc_const_unstable(feature = "const_index", issue = "143775")]
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unsafe impl const SliceIndex<str> for range::Range<usize> {
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type Output = str;
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@@ -85,7 +85,6 @@
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#![feature(maybe_uninit_uninit_array_transpose)]
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#![feature(min_specialization)]
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#![feature(never_type)]
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#![feature(new_range_api)]
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#![feature(next_index)]
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#![feature(non_exhaustive_omitted_patterns_lint)]
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#![feature(nonzero_from_str_radix)]
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@@ -537,7 +537,7 @@
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pub use core::pin;
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#[stable(feature = "rust1", since = "1.0.0")]
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pub use core::ptr;
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#[unstable(feature = "new_range_api", issue = "125687")]
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#[stable(feature = "new_range_api", since = "CURRENT_RUSTC_VERSION")]
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pub use core::range;
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#[stable(feature = "rust1", since = "1.0.0")]
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pub use core::result;
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@@ -1,5 +1,3 @@
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#![feature(new_range_api)]
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fn main() {
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let a: core::range::RangeFrom<u8> = 1..;
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//~^ ERROR mismatched types
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@@ -1,5 +1,5 @@
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error[E0308]: mismatched types
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--> $DIR/feature-gate-new_range.rs:4:41
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--> $DIR/feature-gate-new_range.rs:2:41
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|
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LL | let a: core::range::RangeFrom<u8> = 1..;
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| -------------------------- ^^^ expected `RangeFrom<u8>`, found `RangeFrom<{integer}>`
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@@ -14,7 +14,7 @@ LL | let a: core::range::RangeFrom<u8> = (1..).into();
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| + ++++++++
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error[E0308]: mismatched types
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--> $DIR/feature-gate-new_range.rs:6:37
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--> $DIR/feature-gate-new_range.rs:4:37
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|
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LL | let b: core::range::Range<u8> = 2..3;
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| ---------------------- ^^^^ expected `Range<u8>`, found `Range<{integer}>`
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@@ -29,7 +29,7 @@ LL | let b: core::range::Range<u8> = (2..3).into();
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| + ++++++++
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error[E0308]: mismatched types
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--> $DIR/feature-gate-new_range.rs:8:46
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--> $DIR/feature-gate-new_range.rs:6:46
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|
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LL | let c: core::range::RangeInclusive<u8> = 4..=5;
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| ------------------------------- ^^^^^ expected `RangeInclusive<u8>`, found `RangeInclusive<{integer}>`
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@@ -1,6 +1,6 @@
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//@ check-pass
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#![feature(new_range_api)]
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#![feature(new_range_api_legacy)]
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fn main() {
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// Unchanged
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@@ -1,6 +1,5 @@
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//@ check-pass
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#![feature(new_range_api)]
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#![feature(new_range)]
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fn main() {
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@@ -6,6 +6,7 @@
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RangeToInclusive,
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RangeFrom,
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RangeFromIter,
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Range,
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};
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fn range_inclusive(mut r: RangeInclusive<usize>) {
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@@ -43,13 +44,24 @@ fn range_from(mut r: RangeFrom<usize>) {
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i.remainder(); //~ ERROR unstable
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}
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fn range(mut r: Range<usize>) {
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&[1, 2, 3][r];
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r.start;
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r.end;
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r.contains(&5);
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r.is_empty();
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r.iter();
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let mut i = r.into_iter();
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i.next();
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// Left unstable
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i.remainder(); //~ ERROR unstable
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}
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|
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// Unstable module
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use std::range::legacy; //~ ERROR unstable
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||||
|
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// Unstable types
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||||
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use std::range::Range; //~ ERROR unstable
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use std::range::RangeIter; //~ ERROR unstable
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fn main() {}
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@@ -1,35 +1,15 @@
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error[E0658]: use of unstable library feature `new_range_api`
|
||||
--> $DIR/new_range_stability.rs:48:5
|
||||
error[E0658]: use of unstable library feature `new_range_api_legacy`
|
||||
--> $DIR/new_range_stability.rs:65:5
|
||||
|
|
||||
LL | use std::range::legacy;
|
||||
| ^^^^^^^^^^^^^^^^^^
|
||||
|
|
||||
= note: see issue #125687 <https://github.com/rust-lang/rust/issues/125687> for more information
|
||||
= help: add `#![feature(new_range_api)]` to the crate attributes to enable
|
||||
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
|
||||
|
||||
error[E0658]: use of unstable library feature `new_range_api`
|
||||
--> $DIR/new_range_stability.rs:52:5
|
||||
|
|
||||
LL | use std::range::Range;
|
||||
| ^^^^^^^^^^^^^^^^^
|
||||
|
|
||||
= note: see issue #125687 <https://github.com/rust-lang/rust/issues/125687> for more information
|
||||
= help: add `#![feature(new_range_api)]` to the crate attributes to enable
|
||||
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
|
||||
|
||||
error[E0658]: use of unstable library feature `new_range_api`
|
||||
--> $DIR/new_range_stability.rs:53:5
|
||||
|
|
||||
LL | use std::range::RangeIter;
|
||||
| ^^^^^^^^^^^^^^^^^^^^^
|
||||
|
|
||||
= note: see issue #125687 <https://github.com/rust-lang/rust/issues/125687> for more information
|
||||
= help: add `#![feature(new_range_api)]` to the crate attributes to enable
|
||||
= help: add `#![feature(new_range_api_legacy)]` to the crate attributes to enable
|
||||
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
|
||||
|
||||
error[E0658]: use of unstable library feature `new_range_remainder`
|
||||
--> $DIR/new_range_stability.rs:22:7
|
||||
--> $DIR/new_range_stability.rs:23:7
|
||||
|
|
||||
LL | i.remainder();
|
||||
| ^^^^^^^^^
|
||||
@@ -39,7 +19,7 @@ LL | i.remainder();
|
||||
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
|
||||
|
||||
error[E0658]: use of unstable library feature `new_range_remainder`
|
||||
--> $DIR/new_range_stability.rs:43:7
|
||||
--> $DIR/new_range_stability.rs:44:7
|
||||
|
|
||||
LL | i.remainder();
|
||||
| ^^^^^^^^^
|
||||
@@ -48,6 +28,16 @@ LL | i.remainder();
|
||||
= help: add `#![feature(new_range_remainder)]` to the crate attributes to enable
|
||||
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
|
||||
|
||||
error: aborting due to 5 previous errors
|
||||
error[E0658]: use of unstable library feature `new_range_remainder`
|
||||
--> $DIR/new_range_stability.rs:60:7
|
||||
|
|
||||
LL | i.remainder();
|
||||
| ^^^^^^^^^
|
||||
|
|
||||
= note: see issue #154458 <https://github.com/rust-lang/rust/issues/154458> for more information
|
||||
= help: add `#![feature(new_range_remainder)]` to the crate attributes to enable
|
||||
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
|
||||
|
||||
error: aborting due to 4 previous errors
|
||||
|
||||
For more information about this error, try `rustc --explain E0658`.
|
||||
|
||||
Reference in New Issue
Block a user