strict_num

Trait ApproxEq

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pub trait ApproxEq: Sized {
    type Margin: Copy + Default;

    // Required method
    fn approx_eq<M>(self, other: Self, margin: M) -> bool
       where M: Into<Self::Margin>;

    // Provided method
    fn approx_ne<M>(self, other: Self, margin: M) -> bool
       where M: Into<Self::Margin> { ... }
}
Expand description

A trait for approximate equality comparisons.

Required Associated Types§

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type Margin: Copy + Default

This type type defines a margin within which two values are to be considered approximately equal. It must implement Default so that approx_eq() can be called on unknown types.

Required Methods§

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fn approx_eq<M>(self, other: Self, margin: M) -> bool
where M: Into<Self::Margin>,

This method tests that the self and other values are equal within margin of each other.

Provided Methods§

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fn approx_ne<M>(self, other: Self, margin: M) -> bool
where M: Into<Self::Margin>,

This method tests that the self and other values are not within margin of each other.

Object Safety§

This trait is not object safe.

Implementations on Foreign Types§

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impl ApproxEq for f32

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type Margin = F32Margin

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fn approx_eq<M>(self, other: f32, margin: M) -> bool
where M: Into<<f32 as ApproxEq>::Margin>,

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impl ApproxEq for f64

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type Margin = F64Margin

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fn approx_eq<M>(self, other: f64, margin: M) -> bool
where M: Into<<f64 as ApproxEq>::Margin>,

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impl<T> ApproxEq for &[T]
where T: Copy + ApproxEq,

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type Margin = <T as ApproxEq>::Margin

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fn approx_eq<M>(self, other: &[T], margin: M) -> bool
where M: Into<<&[T] as ApproxEq>::Margin>,

Implementors§