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FractionRA

vstd::resource::frac

Enum FractionRA 

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pub enum FractionRA {
    Frac(real),
    Invalid,
}

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Frac(real)

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Invalid

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impl FractionRA

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pub fn arrow_0(self) -> real

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pub fn arrow_Frac_0(self) -> real

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impl FractionRA

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pub open spec fn new(f: real) -> Self

recommends
0real < f <= 1real,
{ FractionRA::Frac(f) }
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pub open spec fn frac(self) -> real

recommends
self is Frac,
{ self->Frac_0 }

Trait Implementations§

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impl ResourceAlgebra for FractionRA

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open spec fn valid(self) -> bool

{
    match self {
        FractionRA::Invalid => false,
        FractionRA::Frac(frac) => (0 as real) < frac <= (1 as real),
    }
}
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open spec fn op(a: Self, b: Self) -> Self

{
    match (a, b) {
        (FractionRA::Invalid, _) => FractionRA::Invalid,
        (_, FractionRA::Invalid) => FractionRA::Invalid,
        (FractionRA::Frac(a_frac), FractionRA::Frac(b_frac)) => {
            if !a.valid() || !b.valid() {
                FractionRA::Invalid
            } else if a_frac + b_frac <= (1 as real) {
                FractionRA::Frac(a_frac + b_frac)
            } else {
                FractionRA::Invalid
            }
        }
    }
}
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proof fn valid_op(a: Self, b: Self)

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proof fn commutative(a: Self, b: Self)

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proof fn associative(a: Self, b: Self, c: Self)

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, VERUS_SPEC__A> FromSpec<T> for VERUS_SPEC__A
where VERUS_SPEC__A: From<T>,

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exec fn obeys_from_spec() -> bool

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exec fn from_spec(v: T) -> VERUS_SPEC__A

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, VERUS_SPEC__A> IntoSpec<T> for VERUS_SPEC__A
where VERUS_SPEC__A: Into<T>,

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exec fn obeys_into_spec() -> bool

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exec fn into_spec(self) -> T

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impl<T, U> IntoSpecImpl<U> for T
where U: From<T>,

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open spec fn obeys_into_spec() -> bool

{ <U as FromSpec<Self>>::obeys_from_spec() }
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open spec fn into_spec(self) -> U

{ U::from_spec(self) }
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, VERUS_SPEC__A> TryFromSpec<T> for VERUS_SPEC__A
where VERUS_SPEC__A: TryFrom<T>,

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exec fn obeys_try_from_spec() -> bool

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exec fn try_from_spec( v: T, ) -> Result<VERUS_SPEC__A, <VERUS_SPEC__A as TryFrom<T>>::Error>

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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T, VERUS_SPEC__A> TryIntoSpec<T> for VERUS_SPEC__A
where VERUS_SPEC__A: TryInto<T>,

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exec fn obeys_try_into_spec() -> bool

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exec fn try_into_spec(self) -> Result<T, <VERUS_SPEC__A as TryInto<T>>::Error>

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impl<T, U> TryIntoSpecImpl<U> for T
where U: TryFrom<T>,

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open spec fn obeys_try_into_spec() -> bool

{ <U as TryFromSpec<Self>>::obeys_try_from_spec() }
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open spec fn try_into_spec(self) -> Result<U, <U as TryFrom<T>>::Error>

{ <U as TryFromSpec<Self>>::try_from_spec(self) }