# Trait std::iter::Sum 1.12.0[−][src]

    pub trait Sum<A = Self> {
        fn sum<I>(iter: I) -> Self
        where
            I: Iterator<Item = A>;
    }

Trait to represent types that can be created by summing up an iterator.

This trait is used to implement the `sum` method on iterators. Types which implement the trait can be generated by the `sum` method. Like `FromIterator` this trait should rarely be called directly and instead interacted with through `Iterator::sum`.

## Required Methods

### `fn sum<I>(iter: I) -> Self where
I: Iterator<Item = A>,`

Method which takes an iterator and generates `Self` from the elements by "summing up" the items.

## Implementors

- `impl Sum<isize> for isize` | [src]

- `impl Sum<i64> for i64` | [src]

- `impl<'a> Sum<&'a Wrapping<isize>> for Wrapping<isize>` | [src]

- `impl<'a> Sum<&'a Wrapping<i8>> for Wrapping<i8>` | [src]

- `impl<'a> Sum<&'a Wrapping<usize>> for Wrapping<usize>` | [src]

- `impl Sum<u8> for u8` | [src]

- `impl<'a> Sum<&'a Wrapping<u64>> for Wrapping<u64>` | [src]

- `impl Sum<f32> for f32` | [src]

- `impl<'a> Sum<&'a u64> for u64` | [src]

- `impl<T, U, E> Sum<Result<U, E>> for Result<T, E> where T: Sum<U>,` | [src]

- `impl Sum<Wrapping<u8>> for Wrapping<u8>` | [src]

- `impl Sum<Wrapping<u64>> for Wrapping<u64>` | [src]

- `impl<'a> Sum<&'a u32> for u32` | [src]

- `impl Sum<Wrapping<i8>> for Wrapping<i8>` | [src]

- `impl Sum<u32> for u32` | [src]

- `impl<'a> Sum<&'a isize> for isize` | [src]

- `impl Sum<Wrapping<i16>> for Wrapping<i16>` | [src]

- `impl Sum<Duration> for Duration` | [src]

- `impl Sum<Wrapping<i32>> for Wrapping<i32>` | [src]

- `impl Sum<usize> for usize` | [src]

- `impl<'a> Sum<&'a i64> for i64` | [src]

- `impl<'a> Sum<&'a i32> for i32` | [src]

- `impl Sum<i128> for i128` | [src]

- `impl<'a> Sum<&'a Wrapping<i32>> for Wrapping<i32>` | [src]

- `impl<'a> Sum<&'a i8> for i8` | [src]

- `impl Sum<Wrapping<usize>> for Wrapping<usize>` | [src]

- `impl<'a> Sum<&'a u8> for u8` | [src]

- `impl<'a> Sum<&'a Wrapping<i64>> for Wrapping<i64>` | [src]

- `impl<'a> Sum<&'a f32> for f32` | [src]

- `impl<'a> Sum<&'a i128> for i128` | [src]

- `impl<'a> Sum<&'a Wrapping<i16>> for Wrapping<i16>` | [src]

- `impl Sum<u64> for u64` | [src]

- `impl Sum<i16> for i16` | [src]

- `impl<'a> Sum<&'a Wrapping<u128>> for Wrapping<u128>` | [src]

- `impl Sum<u128> for u128` | [src]

- `impl<'a> Sum<&'a usize> for usize` | [src]

- `impl Sum<f64> for f64` | [src]

- `impl Sum<Wrapping<u128>> for Wrapping<u128>` | [src]

- `impl<'a> Sum<&'a Duration> for Duration` | [src]

- `impl<'a> Sum<&'a Wrapping<u32>> for Wrapping<u32>` | [src]

- `impl<'a> Sum<&'a Wrapping<i128>> for Wrapping<i128>` | [src]

- `impl Sum<i32> for i32` | [src]

- `impl Sum<Wrapping<i128>> for Wrapping<i128>` | [src]

- `impl Sum<Wrapping<i64>> for Wrapping<i64>` | [src]

- `impl Sum<Wrapping<u32>> for Wrapping<u32>` | [src]

- `impl<'a> Sum<&'a Wrapping<u8>> for Wrapping<u8>` | [src]

- `impl Sum<u16> for u16` | [src]

- `impl Sum<Wrapping<u16>> for Wrapping<u16>` | [src]

- `impl Sum<i8> for i8` | [src]

- `impl<'a> Sum<&'a Wrapping<u16>> for Wrapping<u16>` | [src]

- `impl Sum<Wrapping<isize>> for Wrapping<isize>` | [src]

- `impl<'a> Sum<&'a u128> for u128` | [src]

- `impl<'a> Sum<&'a f64> for f64` | [src]

- `impl<'a> Sum<&'a i16> for i16` | [src]

- `impl<'a> Sum<&'a u16> for u16` | [src]

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