Trait sp_std::iter::Product

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

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

This trait is used to implement Iterator::product(). Types which implement this trait can be generated by using the product() method on an iterator. Like FromIterator, this trait should rarely be called directly.

Required methods

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

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

Implementations on Foreign Types

impl Product<usize> for usize

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

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

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

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

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

impl Product<i16> for i16

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

impl Product<u8> for u8

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

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

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

impl Product<i64> for i64

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

impl Product<u64> for u64

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

impl Product<u32> for u32

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

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

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

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

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

impl Product<f64> for f64

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

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

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

impl Product<u128> for u128

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

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

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

impl Product<u16> for u16

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

impl Product<f32> for f32

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

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

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

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

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

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

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

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

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

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

impl Product<isize> for isize

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

impl Product<i128> for i128

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

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

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

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

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

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

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

impl Product<i8> for i8

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

impl Product<i32> for i32

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

Implementors

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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