Stabilize `substr_range` and related methods #141266

Original file line number	Diff line number	Diff line change
Expand Up		@@ -4738,8 +4738,6 @@ impl<T> [T] {
		/// # Examples
		/// Basic usage:
		/// ```
	/// #![feature(substr_range)]
	///
		/// let nums: &[u32] = &[1, 7, 1, 1];
		/// let num = &nums[2];
		///
Expand All		@@ -4748,8 +4746,6 @@ impl<T> [T] {
		/// ```
		/// Returning `None` with an unaligned element:
		/// ```
	/// #![feature(substr_range)]
	///
		/// let arr: &[[u32; 2]] = &[[0, 1], [2, 3]];
		/// let flat_arr: &[u32] = arr.as_flattened();
		///
Expand All		@@ -4763,7 +4759,7 @@ impl<T> [T] {
		/// assert_eq!(arr.element_offset(weird_elm), None); // Points between element 0 and 1
		/// ```
		#[must_use]
	#[unstable(feature = "substr_range", issue = "126769")]
	#[stable(feature = "substr_range", since = "CURRENT_RUSTC_VERSION")]
		pub fn element_offset(&self, element: &T) -> Option<usize> {
		if T::IS_ZST {
		panic!("elements are zero-sized");
Expand Down Expand Up		@@ -4803,8 +4799,6 @@ impl<T> [T] {
		/// # Examples
		/// Basic usage:
		/// ```
	/// #![feature(substr_range)]
	///
		/// let nums = &[0, 5, 10, 0, 0, 5];
		///
		/// let mut iter = nums
Expand All		@@ -4817,7 +4811,7 @@ impl<T> [T] {
		/// assert_eq!(iter.next(), Some(5..6));
		/// ```
		#[must_use]
	#[unstable(feature = "substr_range", issue = "126769")]
	#[stable(feature = "substr_range", since = "CURRENT_RUSTC_VERSION")]
		pub fn subslice_range(&self, subslice: &[T]) -> Option<Range<usize>> {
		if T::IS_ZST {
		panic!("elements are zero-sized");
Expand Down

4 changes: 1 addition & 3 deletions library/core/src/str/mod.rs

Show comments View file Open in desktop

Original file line number	Diff line number	Diff line change
Expand Up		@@ -2950,8 +2950,6 @@ impl str {
		///
		/// # Examples
		/// ```
	/// #![feature(substr_range)]
	///
		/// let data = "a, b, b, a";
		/// let mut iter = data.split(", ").map(\|s\| data.substr_range(s).unwrap());
		///
Expand All		@@ -2961,7 +2959,7 @@ impl str {
		/// assert_eq!(iter.next(), Some(9..10));
		/// ```
		#[must_use]
	#[unstable(feature = "substr_range", issue = "126769")]
	#[stable(feature = "substr_range", since = "CURRENT_RUSTC_VERSION")]
		pub fn substr_range(&self, substr: &str) -> Option<Range<usize>> {
		self.as_bytes().subslice_range(substr.as_bytes())
		}
Expand Down

Navigation Menu