# Struct bitflags::__core::ops::RangeTo [−] [src]

    pub struct RangeTo<Idx> {
        pub end: Idx,
    }

1.0.0

A range which is only bounded above: { x | x < end }. Use `..end` (two dots) for its shorthand.

See the `contains()` method for its characterization.

It cannot serve as an iterator because it doesn't have a starting point. ``` fn main() { assert_eq!((..5), std::ops::RangeTo{ end: 5 });

    let arr = [0, 1, 2, 3];
    assert_eq!(arr[ .. ], [0,1,2,3]);
    assert_eq!(arr[ ..3], [0,1,2  ]);  // RangeTo
    assert_eq!(arr[1.. ], [  1,2,3]);
    assert_eq!(arr[1..3], [  1,2  ]);

} ```

## Fields

`end` | The upper bound of the range (exclusive).

## Methods

### `impl<Idx> RangeTo<Idx> where Idx: PartialOrd<Idx>`

#### `fn contains(&self, item: Idx) -> bool`

Unstable (`range_contains`)

: recently added as per RFC

# Examples

    #![feature(range_contains)]
    fn main() {
        assert!(   (..5).contains(-1_000_000_000));
        assert!(   (..5).contains(4));
        assert!( ! (..5).contains(5));
    }

## Trait Implementations

### `impl<Idx> Debug for RangeTo<Idx> where Idx: Debug`

#### `fn fmt(&self, fmt: &mut Formatter) -> Result<(), Error>`

### `impl<T> RangeArgument<T> for RangeTo<T>`

#### `fn end(&self) -> Option<&T>`

Unstable (`collections_range`)

: waiting for dust to settle on inclusive ranges

### Derived Implementations

### `impl<Idx> Eq for RangeTo<Idx> where Idx: Eq`

### `impl<Idx> PartialEq<RangeTo<Idx>> for RangeTo<Idx> where Idx: PartialEq<Idx>`

#### `fn eq(&self, __arg_0: &RangeTo<Idx>) -> bool`

#### `fn ne(&self, __arg_0: &RangeTo<Idx>) -> bool`

### `impl<Idx> Clone for RangeTo<Idx> where Idx: Clone`

#### `fn clone(&self) -> RangeTo<Idx>`

#### `fn clone_from(&mut self, source: &Self)`

### `impl<Idx> Copy for RangeTo<Idx> where Idx: Copy`

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