1.12.0[][src]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

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

Implementors

impl Product<Wrapping<i128>> for Wrapping<i128>
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impl Product<Wrapping<i16>> for Wrapping<i16>
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impl Product<Wrapping<i32>> for Wrapping<i32>
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impl Product<Wrapping<i64>> for Wrapping<i64>
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impl Product<Wrapping<i8>> for Wrapping<i8>
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impl Product<Wrapping<isize>> for Wrapping<isize>
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impl Product<Wrapping<u128>> for Wrapping<u128>
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impl Product<Wrapping<u16>> for Wrapping<u16>
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impl Product<Wrapping<u32>> for Wrapping<u32>
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impl Product<Wrapping<u64>> for Wrapping<u64>
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impl Product<Wrapping<u8>> for Wrapping<u8>
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impl Product<Wrapping<usize>> for Wrapping<usize>
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impl Product<f32> for f32
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impl Product<f64> for f64
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impl Product<i128> for i128
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impl Product<i16> for i16
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impl Product<i32> for i32
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impl Product<i64> for i64
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impl Product<i8> for i8
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impl Product<isize> for isize
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impl Product<u128> for u128
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impl Product<u16> for u16
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impl Product<u32> for u32
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impl Product<u64> for u64
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impl Product<u8> for u8
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impl Product<usize> for usize
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impl<'a> Product<&'a Wrapping<i128>> for Wrapping<i128>
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impl<'a> Product<&'a Wrapping<i16>> for Wrapping<i16>
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impl<'a> Product<&'a Wrapping<i32>> for Wrapping<i32>
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impl<'a> Product<&'a Wrapping<i64>> for Wrapping<i64>
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impl<'a> Product<&'a Wrapping<i8>> for Wrapping<i8>
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impl<'a> Product<&'a Wrapping<isize>> for Wrapping<isize>
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impl<'a> Product<&'a Wrapping<u128>> for Wrapping<u128>
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impl<'a> Product<&'a Wrapping<u16>> for Wrapping<u16>
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impl<'a> Product<&'a Wrapping<u32>> for Wrapping<u32>
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impl<'a> Product<&'a Wrapping<u64>> for Wrapping<u64>
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impl<'a> Product<&'a Wrapping<u8>> for Wrapping<u8>
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impl<'a> Product<&'a Wrapping<usize>> for Wrapping<usize>
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impl<'a> Product<&'a f32> for f32
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impl<'a> Product<&'a f64> for f64
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impl<'a> Product<&'a i128> for i128
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impl<'a> Product<&'a i16> for i16
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impl<'a> Product<&'a i32> for i32
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impl<'a> Product<&'a i64> for i64
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impl<'a> Product<&'a i8> for i8
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impl<'a> Product<&'a isize> for isize
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impl<'a> Product<&'a u128> for u128
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impl<'a> Product<&'a u16> for u16
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impl<'a> Product<&'a u32> for u32
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impl<'a> Product<&'a u64> for u64
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impl<'a> Product<&'a u8> for u8
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impl<'a> Product<&'a usize> for usize
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impl<T, U, E> Product<Result<U, E>> for Result<T, E> where
    T: Product<U>, 
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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.