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Vec: looks like is_empty and len are not needed #26980

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Vec: looks like is_empty and len are not needed #26980

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26 changes: 0 additions & 26 deletions src/libcollections/vec.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -812,32 +812,6 @@ impl<T> Vec<T> {
self.truncate(0)
}

/// Returns the number of elements in the vector.
///
/// # Examples
///
/// ```
/// let a = vec![1, 2, 3];
/// assert_eq!(a.len(), 3);
/// ```
#[inline]
#[stable(feature = "rust1", since = "1.0.0")]
pub fn len(&self) -> usize { self.len }

/// Returns `true` if the vector contains no elements.
///
/// # Examples
///
/// ```
/// let mut v = Vec::new();
/// assert!(v.is_empty());
///
/// v.push(1);
/// assert!(!v.is_empty());
/// ```
#[stable(feature = "rust1", since = "1.0.0")]
pub fn is_empty(&self) -> bool { self.len() == 0 }

/// Converts a `Vec<T>` to a `Vec<U>` where `T` and `U` have the same
/// size and in case they are not zero-sized the same minimal alignment.
///
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