Trait core::iter::Product

pub trait Product<A = Self>: Sized {
    fn product<I: Iterator<Item = A>>(iter: I) -> Self;
}

Trait to represent types that can be created by multiplying elements of an iterator.

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

Required methods

fn product<I: Iterator<Item = A>>(iter: I) -> Self

Method which takes an iterator and generates Self from the elements by multiplying the items.

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Implementors

impl Product<Wrapping<i128>> for Wrapping<i128>

fn product<I: Iterator<Item = Wrapping<i128>>>(iter: I) -> Wrapping<i128>

impl Product<Wrapping<i16>> for Wrapping<i16>

fn product<I: Iterator<Item = Wrapping<i16>>>(iter: I) -> Wrapping<i16>

impl Product<Wrapping<i32>> for Wrapping<i32>

fn product<I: Iterator<Item = Wrapping<i32>>>(iter: I) -> Wrapping<i32>

impl Product<Wrapping<i64>> for Wrapping<i64>

fn product<I: Iterator<Item = Wrapping<i64>>>(iter: I) -> Wrapping<i64>

impl Product<Wrapping<i8>> for Wrapping<i8>

fn product<I: Iterator<Item = Wrapping<i8>>>(iter: I) -> Wrapping<i8>

impl Product<Wrapping<isize>> for Wrapping<isize>

fn product<I: Iterator<Item = Wrapping<isize>>>(iter: I) -> Wrapping<isize>

impl Product<Wrapping<u128>> for Wrapping<u128>

fn product<I: Iterator<Item = Wrapping<u128>>>(iter: I) -> Wrapping<u128>

impl Product<Wrapping<u16>> for Wrapping<u16>

fn product<I: Iterator<Item = Wrapping<u16>>>(iter: I) -> Wrapping<u16>

impl Product<Wrapping<u32>> for Wrapping<u32>

fn product<I: Iterator<Item = Wrapping<u32>>>(iter: I) -> Wrapping<u32>

impl Product<Wrapping<u64>> for Wrapping<u64>

fn product<I: Iterator<Item = Wrapping<u64>>>(iter: I) -> Wrapping<u64>

impl Product<Wrapping<u8>> for Wrapping<u8>

fn product<I: Iterator<Item = Wrapping<u8>>>(iter: I) -> Wrapping<u8>

impl Product<Wrapping<usize>> for Wrapping<usize>

fn product<I: Iterator<Item = Wrapping<usize>>>(iter: I) -> Wrapping<usize>

impl Product<f32> for f32

fn product<I: Iterator<Item = f32>>(iter: I) -> f32

impl Product<f64> for f64

fn product<I: Iterator<Item = f64>>(iter: I) -> f64

impl Product<i128> for i128

fn product<I: Iterator<Item = i128>>(iter: I) -> i128

impl Product<i16> for i16

fn product<I: Iterator<Item = i16>>(iter: I) -> i16

impl Product<i32> for i32

fn product<I: Iterator<Item = i32>>(iter: I) -> i32

impl Product<i64> for i64

fn product<I: Iterator<Item = i64>>(iter: I) -> i64

impl Product<i8> for i8

fn product<I: Iterator<Item = i8>>(iter: I) -> i8

impl Product<isize> for isize

fn product<I: Iterator<Item = isize>>(iter: I) -> isize

impl Product<u128> for u128

fn product<I: Iterator<Item = u128>>(iter: I) -> u128

impl Product<u16> for u16

fn product<I: Iterator<Item = u16>>(iter: I) -> u16

impl Product<u32> for u32

fn product<I: Iterator<Item = u32>>(iter: I) -> u32

impl Product<u64> for u64

fn product<I: Iterator<Item = u64>>(iter: I) -> u64

impl Product<u8> for u8

fn product<I: Iterator<Item = u8>>(iter: I) -> u8

impl Product<usize> for usize

fn product<I: Iterator<Item = usize>>(iter: I) -> usize

impl<'a> Product<&'a Wrapping<i128>> for Wrapping<i128>

fn product<I: Iterator<Item = &'a Wrapping<i128>>>(iter: I) -> Wrapping<i128>

impl<'a> Product<&'a Wrapping<i16>> for Wrapping<i16>

fn product<I: Iterator<Item = &'a Wrapping<i16>>>(iter: I) -> Wrapping<i16>

impl<'a> Product<&'a Wrapping<i32>> for Wrapping<i32>

fn product<I: Iterator<Item = &'a Wrapping<i32>>>(iter: I) -> Wrapping<i32>

impl<'a> Product<&'a Wrapping<i64>> for Wrapping<i64>

fn product<I: Iterator<Item = &'a Wrapping<i64>>>(iter: I) -> Wrapping<i64>

impl<'a> Product<&'a Wrapping<i8>> for Wrapping<i8>

fn product<I: Iterator<Item = &'a Wrapping<i8>>>(iter: I) -> Wrapping<i8>

impl<'a> Product<&'a Wrapping<isize>> for Wrapping<isize>

fn product<I: Iterator<Item = &'a Wrapping<isize>>>(iter: I) -> Wrapping<isize>

impl<'a> Product<&'a Wrapping<u128>> for Wrapping<u128>

fn product<I: Iterator<Item = &'a Wrapping<u128>>>(iter: I) -> Wrapping<u128>

impl<'a> Product<&'a Wrapping<u16>> for Wrapping<u16>

fn product<I: Iterator<Item = &'a Wrapping<u16>>>(iter: I) -> Wrapping<u16>

impl<'a> Product<&'a Wrapping<u32>> for Wrapping<u32>

fn product<I: Iterator<Item = &'a Wrapping<u32>>>(iter: I) -> Wrapping<u32>

impl<'a> Product<&'a Wrapping<u64>> for Wrapping<u64>

fn product<I: Iterator<Item = &'a Wrapping<u64>>>(iter: I) -> Wrapping<u64>

impl<'a> Product<&'a Wrapping<u8>> for Wrapping<u8>

fn product<I: Iterator<Item = &'a Wrapping<u8>>>(iter: I) -> Wrapping<u8>

impl<'a> Product<&'a Wrapping<usize>> for Wrapping<usize>

fn product<I: Iterator<Item = &'a Wrapping<usize>>>(iter: I) -> Wrapping<usize>

impl<'a> Product<&'a f32> for f32

fn product<I: Iterator<Item = &'a f32>>(iter: I) -> f32

impl<'a> Product<&'a f64> for f64

fn product<I: Iterator<Item = &'a f64>>(iter: I) -> f64

impl<'a> Product<&'a i128> for i128

fn product<I: Iterator<Item = &'a i128>>(iter: I) -> i128

impl<'a> Product<&'a i16> for i16

fn product<I: Iterator<Item = &'a i16>>(iter: I) -> i16

impl<'a> Product<&'a i32> for i32

fn product<I: Iterator<Item = &'a i32>>(iter: I) -> i32

impl<'a> Product<&'a i64> for i64

fn product<I: Iterator<Item = &'a i64>>(iter: I) -> i64

impl<'a> Product<&'a i8> for i8

fn product<I: Iterator<Item = &'a i8>>(iter: I) -> i8

impl<'a> Product<&'a isize> for isize

fn product<I: Iterator<Item = &'a isize>>(iter: I) -> isize

impl<'a> Product<&'a u128> for u128

fn product<I: Iterator<Item = &'a u128>>(iter: I) -> u128

impl<'a> Product<&'a u16> for u16

fn product<I: Iterator<Item = &'a u16>>(iter: I) -> u16

impl<'a> Product<&'a u32> for u32

fn product<I: Iterator<Item = &'a u32>>(iter: I) -> u32

impl<'a> Product<&'a u64> for u64

fn product<I: Iterator<Item = &'a u64>>(iter: I) -> u64

impl<'a> Product<&'a u8> for u8

fn product<I: Iterator<Item = &'a u8>>(iter: I) -> u8

impl<'a> Product<&'a usize> for usize

fn product<I: Iterator<Item = &'a usize>>(iter: I) -> usize

impl<T, U> Product<Option<U>> for Option<T> where
    T: Product<U>, 

fn product<I>(iter: I) -> Option<T> where
    I: Iterator<Item = Option<U>>, 

Takes each element in the Iterator: if it is a None, no further elements are taken, and the None is returned. Should no None occur, the product of all elements is returned.

impl<T, U, E> Product<Result<U, E>> for Result<T, E> where
    T: Product<U>, 

fn product<I>(iter: I) -> Result<T, E> where
    I: Iterator<Item = Result<U, E>>, 

Takes each element in the Iterator: if it is an Err, no further elements are taken, and the Err is returned. Should no Err occur, the product of all elements is returned.

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