Trait sp_std::iter::Product

pub trait Product<A = Self> {
    pub 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 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

pub 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.

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Implementations on Foreign Types

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

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

impl Product<u128> for u128

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

impl Product<i64> for i64

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

impl Product<i128> for i128

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

impl Product<u64> for u64

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

impl Product<i16> for i16

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

impl Product<f64> for f64

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

impl Product<i8> for i8

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

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 i128> for i128

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

impl Product<u16> for u16

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

impl Product<i32> for i32

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

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

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

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

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

impl Product<u8> for u8

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

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

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

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

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

impl Product<u32> for u32

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

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

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

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

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

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

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

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

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

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

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

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

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

impl Product<f32> for f32

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

impl Product<usize> for usize

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

impl Product<isize> for isize

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

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

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

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

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

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Implementors

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

pub 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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