Enum cranelift_codegen_shared::condcodes::FloatCC[−][src]

pub enum FloatCC {

Show variants    Ordered,
    Unordered,
    Equal,
    NotEqual,
    OrderedNotEqual,
    UnorderedOrEqual,
    LessThan,
    LessThanOrEqual,
    GreaterThan,
    GreaterThanOrEqual,
    UnorderedOrLessThan,
    UnorderedOrLessThanOrEqual,
    UnorderedOrGreaterThan,
    UnorderedOrGreaterThanOrEqual,

}
Expand description

Condition code for comparing floating point numbers.

This condition code is used by the fcmp instruction to compare floating point values. Two IEEE floating point values relate in exactly one of four ways:

  1. UN - unordered when either value is NaN.
  2. EQ - equal numerical value.
  3. LT - x is less than y.
  4. GT - x is greater than y.

Note that 0.0 and -0.0 relate as EQ because they both represent the number 0.

The condition codes described here are used to produce a single boolean value from the comparison. The 14 condition codes here cover every possible combination of the relation above except the impossible !UN & !EQ & !LT & !GT and the always true UN | EQ | LT | GT.

Variants

Ordered

EQ | LT | GT

Unordered

UN

Equal

EQ

NotEqual

The C ‘!=’ operator is the inverse of ‘==’: NotEqual. UN | LT | GT

OrderedNotEqual

LT | GT

UnorderedOrEqual

UN | EQ

LessThan

LT

LessThanOrEqual

LT | EQ

GreaterThan

GT

GreaterThanOrEqual

GT | EQ

UnorderedOrLessThan

UN | LT

UnorderedOrLessThanOrEqual

UN | LT | EQ

UnorderedOrGreaterThan

UN | GT

UnorderedOrGreaterThanOrEqual

UN | GT | EQ

Trait Implementations

impl Clone for FloatCC[src]

fn clone(&self) -> FloatCC[src]

Returns a copy of the value. Read more

fn clone_from(&mut self, source: &Self)1.0.0[src]

Performs copy-assignment from source. Read more

impl CondCode for FloatCC[src]

fn inverse(self) -> Self[src]

Get the inverse condition code of self. Read more

fn reverse(self) -> Self[src]

Get the reversed condition code for self. Read more

impl Debug for FloatCC[src]

fn fmt(&self, f: &mut Formatter<'_>) -> Result[src]

Formats the value using the given formatter. Read more

impl Display for FloatCC[src]

fn fmt(&self, f: &mut Formatter<'_>) -> Result[src]

Formats the value using the given formatter. Read more

impl FromStr for FloatCC[src]

type Err = ()

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>[src]

Parses a string s to return a value of this type. Read more

impl Hash for FloatCC[src]

fn hash<__H: Hasher>(&self, state: &mut __H)[src]

Feeds this value into the given Hasher. Read more

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 1.3.0[src]

Feeds a slice of this type into the given Hasher. Read more

impl PartialEq<FloatCC> for FloatCC[src]

fn eq(&self, other: &FloatCC) -> bool[src]

This method tests for self and other values to be equal, and is used by ==. Read more

#[must_use]
fn ne(&self, other: &Rhs) -> bool1.0.0[src]

This method tests for !=.

impl Copy for FloatCC[src]

impl Eq for FloatCC[src]

impl StructuralEq for FloatCC[src]

impl StructuralPartialEq for FloatCC[src]

Auto Trait Implementations

impl RefUnwindSafe for FloatCC

impl Send for FloatCC

impl Sync for FloatCC

impl Unpin for FloatCC

impl UnwindSafe for FloatCC

Blanket Implementations

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

pub fn type_id(&self) -> TypeId[src]

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T where
    T: ?Sized, [src]

pub fn borrow(&self) -> &T[src]

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T where
    T: ?Sized, [src]

pub fn borrow_mut(&mut self) -> &mut T[src]

Mutably borrows from an owned value. Read more

impl<T> From<T> for T[src]

pub fn from(t: T) -> T[src]

Performs the conversion.

impl<T, U> Into<U> for T where
    U: From<T>, [src]

pub fn into(self) -> U[src]

Performs the conversion.

impl<T> ToOwned for T where
    T: Clone, [src]

type Owned = T

The resulting type after obtaining ownership.

pub fn to_owned(&self) -> T[src]

Creates owned data from borrowed data, usually by cloning. Read more

pub fn clone_into(&self, target: &mut T)[src]

🔬 This is a nightly-only experimental API. (toowned_clone_into)

recently added

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T> ToString for T where
    T: Display + ?Sized, [src]

pub default fn to_string(&self) -> String[src]

Converts the given value to a String. Read more

impl<T, U> TryFrom<U> for T where
    U: Into<T>, [src]

type Error = Infallible

The type returned in the event of a conversion error.

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]

Performs the conversion.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, [src]

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

The type returned in the event of a conversion error.

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>[src]

Performs the conversion.