[][src]Trait optional::Noned

pub trait Noned {
    fn is_none(&self) -> bool;
fn get_none() -> Self; }

A trait whose implementation for any type T allows the use of Optioned<T> where T is bound by both Sized and Copy.

Required Methods

Returns true if the contained value is the declared None for T, false otherwise.

Returns the declared None value for T.

Implementations on Foreign Types

impl Noned for u8
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impl Noned for u16
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impl Noned for u32
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impl Noned for u64
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impl Noned for usize
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impl Noned for i8
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impl Noned for i16
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impl Noned for i32
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impl Noned for i64
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impl Noned for isize
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impl Noned for f32
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impl Noned for f64
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impl Noned for char
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Implementors