[−][src]Trait std::iter::TrustedLen
pub unsafe trait TrustedLen: Iterator { }
An iterator that reports an accurate length using size_hint.
The iterator reports a size hint where it is either exact
(lower bound is equal to upper bound), or the upper bound is None.
The upper bound must only be None if the actual iterator length is
larger than usize::MAX. In that case, the lower bound must be
usize::MAX, resulting in a .size_hint of (usize::MAX, None).
The iterator must produce exactly the number of elements it reported or diverge before reaching the end.
Safety
This trait must only be implemented when the contract is upheld.
Consumers of this trait must inspect .size_hint’s upper bound.
Implementors
impl TrustedLen for Range<i8>[src]
impl TrustedLen for Range<i8>impl<T> TrustedLen for Empty<T>[src]
impl<T> TrustedLen for Empty<T>impl TrustedLen for Range<u16>[src]
impl TrustedLen for Range<u16>impl<I> TrustedLen for Take<I> where
I: TrustedLen, [src]
impl<I> TrustedLen for Take<I> where
I: TrustedLen, impl<A, B> TrustedLen for Zip<A, B> where
A: TrustedLen,
B: TrustedLen, [src]
impl<A, B> TrustedLen for Zip<A, B> where
A: TrustedLen,
B: TrustedLen, impl<I> TrustedLen for Enumerate<I> where
I: TrustedLen, [src]
impl<I> TrustedLen for Enumerate<I> where
I: TrustedLen, impl<A> TrustedLen for RangeFrom<A> where
A: Step, [src]
impl<A> TrustedLen for RangeFrom<A> where
A: Step, impl<I> TrustedLen for Rev<I> where
I: TrustedLen + DoubleEndedIterator, [src]
impl<I> TrustedLen for Rev<I> where
I: TrustedLen + DoubleEndedIterator, impl<'a, T> TrustedLen for ExactChunks<'a, T>[src]
impl<'a, T> TrustedLen for ExactChunks<'a, T>impl<'a, T> TrustedLen for ChunksMut<'a, T>[src]
impl<'a, T> TrustedLen for ChunksMut<'a, T>impl<'a> TrustedLen for Bytes<'a>[src]
impl<'a> TrustedLen for Bytes<'a>impl<A, B> TrustedLen for Chain<A, B> where
A: TrustedLen,
B: TrustedLen<Item = <A as Iterator>::Item>, [src]
impl<A, B> TrustedLen for Chain<A, B> where
A: TrustedLen,
B: TrustedLen<Item = <A as Iterator>::Item>, impl<'a, A> TrustedLen for std::option::Iter<'a, A>[src]
impl<'a, A> TrustedLen for std::option::Iter<'a, A>impl<A> TrustedLen for std::result::IntoIter<A>[src]
impl<A> TrustedLen for std::result::IntoIter<A>impl<'a, T> TrustedLen for Chunks<'a, T>[src]
impl<'a, T> TrustedLen for Chunks<'a, T>impl TrustedLen for Range<i32>[src]
impl TrustedLen for Range<i32>impl<'a, A> TrustedLen for std::result::Iter<'a, A>[src]
impl<'a, A> TrustedLen for std::result::Iter<'a, A>impl TrustedLen for Range<u8>[src]
impl TrustedLen for Range<u8>impl<'a, T> TrustedLen for std::slice::Iter<'a, T>[src]
impl<'a, T> TrustedLen for std::slice::Iter<'a, T>impl<'a, I, T> TrustedLen for Cloned<I> where
I: TrustedLen<Item = &'a T>,
T: 'a + Clone, [src]
impl<'a, I, T> TrustedLen for Cloned<I> where
I: TrustedLen<Item = &'a T>,
T: 'a + Clone, impl TrustedLen for Range<isize>[src]
impl TrustedLen for Range<isize>impl TrustedLen for RangeInclusive<u32>[src]
impl TrustedLen for RangeInclusive<u32>impl TrustedLen for RangeInclusive<i64>[src]
impl TrustedLen for RangeInclusive<i64>impl TrustedLen for Range<usize>[src]
impl TrustedLen for Range<usize>impl<A, F> TrustedLen for RepeatWith<F> where
F: FnMut() -> A, [src]
impl<A, F> TrustedLen for RepeatWith<F> where
F: FnMut() -> A, impl TrustedLen for RangeInclusive<isize>[src]
impl TrustedLen for RangeInclusive<isize>impl<'a, T> TrustedLen for std::slice::IterMut<'a, T>[src]
impl<'a, T> TrustedLen for std::slice::IterMut<'a, T>impl TrustedLen for RangeInclusive<u16>[src]
impl TrustedLen for RangeInclusive<u16>impl<'a, T> TrustedLen for ExactChunksMut<'a, T>[src]
impl<'a, T> TrustedLen for ExactChunksMut<'a, T>impl TrustedLen for Range<u64>[src]
impl TrustedLen for Range<u64>impl TrustedLen for RangeInclusive<usize>[src]
impl TrustedLen for RangeInclusive<usize>impl<B, I, F> TrustedLen for Map<I, F> where
F: FnMut(<I as Iterator>::Item) -> B,
I: TrustedLen, [src]
impl<B, I, F> TrustedLen for Map<I, F> where
F: FnMut(<I as Iterator>::Item) -> B,
I: TrustedLen, impl TrustedLen for RangeInclusive<i8>[src]
impl TrustedLen for RangeInclusive<i8>impl<'a, A> TrustedLen for std::result::IterMut<'a, A>[src]
impl<'a, A> TrustedLen for std::result::IterMut<'a, A>impl<'a, A> TrustedLen for std::option::IterMut<'a, A>[src]
impl<'a, A> TrustedLen for std::option::IterMut<'a, A>impl<A> TrustedLen for std::option::IntoIter<A>[src]
impl<A> TrustedLen for std::option::IntoIter<A>impl TrustedLen for RangeInclusive<u8>[src]
impl TrustedLen for RangeInclusive<u8>impl<'a, I> TrustedLen for &'a mut I where
I: TrustedLen + ?Sized, [src]
impl<'a, I> TrustedLen for &'a mut I where
I: TrustedLen + ?Sized, impl TrustedLen for RangeInclusive<u64>[src]
impl TrustedLen for RangeInclusive<u64>impl<A> TrustedLen for Repeat<A> where
A: Clone, [src]
impl<A> TrustedLen for Repeat<A> where
A: Clone, impl TrustedLen for Range<i64>[src]
impl TrustedLen for Range<i64>impl TrustedLen for Range<u32>[src]
impl TrustedLen for Range<u32>impl TrustedLen for Range<i16>[src]
impl TrustedLen for Range<i16>impl<T> TrustedLen for Once<T>[src]
impl<T> TrustedLen for Once<T>impl TrustedLen for RangeInclusive<i32>[src]
impl TrustedLen for RangeInclusive<i32>impl TrustedLen for RangeInclusive<i16>[src]
impl TrustedLen for RangeInclusive<i16>impl<'a, T> TrustedLen for Windows<'a, T>[src]
impl<'a, T> TrustedLen for Windows<'a, T>impl<T> TrustedLen for std::vec::IntoIter<T>[src]
impl<T> TrustedLen for std::vec::IntoIter<T>