Struct rustc_apfloat::ppc::DoubleFloat

#[must_use]
pub struct DoubleFloat<F>(F, F);

Trait Implementations

impl<F> Add<DoubleFloat<F>> for DoubleFloat<F> where
    Self: Float, 

type Output = StatusAnd<Self>

The resulting type after applying the + operator.

fn add(self, rhs: Self) -> StatusAnd<Self>

Performs the + operation.

impl<F> AddAssign<DoubleFloat<F>> for DoubleFloat<F> where
    Self: Float, 

fn add_assign(&mut self, rhs: Self)

Performs the += operation.

impl<F: Clone> Clone for DoubleFloat<F>

fn clone(&self) -> DoubleFloat<F>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<F: Debug> Debug for DoubleFloat<F>

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

Formats the value using the given formatter.

impl<F> Default for DoubleFloat<F> where
    Self: Float, 

fn default() -> Self

Returns the “default value” for a type.

impl<F: FloatConvert<IeeeFloat<FallbackS<F>>>> Display for DoubleFloat<F>

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

Formats the value using the given formatter.

impl<F> Div<DoubleFloat<F>> for DoubleFloat<F> where
    Self: Float, 

type Output = StatusAnd<Self>

The resulting type after applying the / operator.

fn div(self, rhs: Self) -> StatusAnd<Self>

Performs the / operation.

impl<F> DivAssign<DoubleFloat<F>> for DoubleFloat<F> where
    Self: Float, 

fn div_assign(&mut self, rhs: Self)

Performs the /= operation.

impl<F: FloatConvert<IeeeFloat<FallbackS<F>>>> Float for DoubleFloat<F> where
    Self: From<IeeeFloat<FallbackS<F>>>, 

const BITS: usize

Total number of bits in the in-memory format.

const PRECISION: usize

Number of bits in the significand. This includes the integer bit.

const MAX_EXP: ExpInt

The largest E such that 2^E is representable; this matches the definition of IEEE 754.

const MIN_EXP: ExpInt

The smallest E such that 2^E is a normalized number; this matches the definition of IEEE 754.

const ZERO: Self

Positive Zero.

const INFINITY: Self

Positive Infinity.

const NAN: Self

NaN (Not a Number).

fn qnan(payload: Option<u128>) -> Self

Factory for QNaN values.

fn snan(payload: Option<u128>) -> Self

Factory for SNaN values.

fn largest() -> Self

Largest finite number.

const SMALLEST: Self

Smallest (by magnitude) finite number. Might be denormalized, which implies a relative loss of precision.

fn smallest_normalized() -> Self

Smallest (by magnitude) normalized finite number.

fn add_r(self, rhs: Self, round: Round) -> StatusAnd<Self>

fn mul_r(self, rhs: Self, round: Round) -> StatusAnd<Self>

fn mul_add_r(
    self,
    multiplicand: Self,
    addend: Self,
    round: Round
) -> StatusAnd<Self>

fn div_r(self, rhs: Self, round: Round) -> StatusAnd<Self>

fn c_fmod(self, rhs: Self) -> StatusAnd<Self>

C fmod, or llvm frem.

fn round_to_integral(self, round: Round) -> StatusAnd<Self>

fn next_up(self) -> StatusAnd<Self>

IEEE-754R 2008 5.3.1: nextUp.

fn from_bits(input: u128) -> Self

fn from_u128_r(input: u128, round: Round) -> StatusAnd<Self>

fn from_str_r(s: &str, round: Round) -> Result<StatusAnd<Self>, ParseError>

fn to_bits(self) -> u128

fn to_u128_r(
    self,
    width: usize,
    round: Round,
    is_exact: &mut bool
) -> StatusAnd<u128>

fn cmp_abs_normal(self, rhs: Self) -> Ordering

fn bitwise_eq(self, rhs: Self) -> bool

Bitwise comparison for equality (QNaNs compare equal, 0!=-0).

fn is_negative(self) -> bool

IEEE-754R isSignMinus: Returns whether the current value is negative.

fn is_denormal(self) -> bool

IEEE-754R isSubnormal(): Returns whether the float is a denormal.

fn is_signaling(self) -> bool

Returns true if the float is a signaling NaN.

fn category(self) -> Category

fn get_exact_inverse(self) -> Option<Self>

If this value has an exact multiplicative inverse, return it.

fn ilogb(self) -> ExpInt

Returns the exponent of the internal representation of the Float.

fn scalbn_r(self, exp: ExpInt, round: Round) -> Self

Returns: self * 2^exp for integral exponents. Equivalent to C standard library function ldexp.

fn frexp_r(self, exp: &mut ExpInt, round: Round) -> Self

Equivalent to C standard library function with the same name.

fn sub_r(self, rhs: Self, round: Round) -> StatusAnd<Self>

fn mul_add(self, multiplicand: Self, addend: Self) -> StatusAnd<Self>

fn ieee_rem(self, rhs: Self) -> StatusAnd<Self>

IEEE remainder.

fn next_down(self) -> StatusAnd<Self>

IEEE-754R 2008 5.3.1: nextDown.

fn abs(self) -> Self

fn copy_sign(self, rhs: Self) -> Self

fn from_i128_r(input: i128, round: Round) -> StatusAnd<Self>

fn from_i128(input: i128) -> StatusAnd<Self>

fn from_u128(input: u128) -> StatusAnd<Self>

fn to_i128_r(
    self,
    width: usize,
    round: Round,
    is_exact: &mut bool
) -> StatusAnd<i128>

Converts a floating point number to an integer according to the rounding mode. In case of an invalid operation exception, deterministic values are returned, namely zero for NaNs and the minimal or maximal value respectively for underflow or overflow. If the rounded value is in range but the floating point number is not the exact integer, the C standard doesn’t require an inexact exception to be raised. IEEE-854 does require it so we do that.

fn to_i128(self, width: usize) -> StatusAnd<i128>

fn to_u128(self, width: usize) -> StatusAnd<u128>

fn min(self, other: Self) -> Self

Implements IEEE minNum semantics. Returns the smaller of the 2 arguments if both are not NaN. If either argument is a NaN, returns the other argument.

fn max(self, other: Self) -> Self

Implements IEEE maxNum semantics. Returns the larger of the 2 arguments if both are not NaN. If either argument is a NaN, returns the other argument.

fn is_normal(self) -> bool

IEEE-754R isNormal: Returns whether the current value is normal.

fn is_finite(self) -> bool

Returns true if the current value is zero, subnormal, or normal.

fn is_zero(self) -> bool

Returns true if the float is plus or minus zero.

fn is_infinite(self) -> bool

IEEE-754R isInfinite(): Returns whether the float is infinity.

fn is_nan(self) -> bool

Returns true if the float is a quiet or signaling NaN.

fn is_non_zero(self) -> bool

fn is_finite_non_zero(self) -> bool

fn is_pos_zero(self) -> bool

fn is_neg_zero(self) -> bool

fn is_smallest(self) -> bool

Returns true if the number has the smallest possible non-zero magnitude in the current semantics.

fn is_largest(self) -> bool

Returns true if the number has the largest possible finite magnitude in the current semantics.

fn is_integer(self) -> bool

Returns true if the number is an exact integer.

fn scalbn(self, exp: ExpInt) -> Self

fn frexp(self, exp: &mut ExpInt) -> Self

impl<F: FloatConvert<Self>> From<DoubleFloat<F>> for IeeeFloat<FallbackS<F>>

fn from(DoubleFloat: DoubleFloat<F>) -> Self

Performs the conversion.

impl<F: Float> From<IeeeFloat<FallbackS<F>>> for DoubleFloat<F> where
    F: FloatConvert<IeeeFloat<FallbackExtendedS<F>>>,
    IeeeFloat<FallbackExtendedS<F>>: FloatConvert<F>, 

fn from(x: IeeeFloat<FallbackS<F>>) -> Self

Performs the conversion.

impl<F> FromStr for DoubleFloat<F> where
    Self: Float, 

type Err = ParseError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, ParseError>

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

impl<F> Mul<DoubleFloat<F>> for DoubleFloat<F> where
    Self: Float, 

type Output = StatusAnd<Self>

The resulting type after applying the * operator.

fn mul(self, rhs: Self) -> StatusAnd<Self>

Performs the * operation.

impl<F> MulAssign<DoubleFloat<F>> for DoubleFloat<F> where
    Self: Float, 

fn mul_assign(&mut self, rhs: Self)

Performs the *= operation.

impl<F: Float> Neg for DoubleFloat<F>

type Output = Self

The resulting type after applying the - operator.

fn neg(self) -> Self

Performs the unary - operation.

impl<F: PartialEq> PartialEq<DoubleFloat<F>> for DoubleFloat<F>

fn eq(&self, other: &DoubleFloat<F>) -> bool

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

fn ne(&self, other: &DoubleFloat<F>) -> bool

This method tests for !=.

impl<F: PartialOrd> PartialOrd<DoubleFloat<F>> for DoubleFloat<F>

fn partial_cmp(&self, other: &DoubleFloat<F>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

#[must_use]

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

#[must_use]

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

#[must_use]

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

#[must_use]

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl<F> Rem<DoubleFloat<F>> for DoubleFloat<F> where
    Self: Float, 

type Output = StatusAnd<Self>

The resulting type after applying the % operator.

fn rem(self, rhs: Self) -> StatusAnd<Self>

Performs the % operation.

impl<F> RemAssign<DoubleFloat<F>> for DoubleFloat<F> where
    Self: Float, 

fn rem_assign(&mut self, rhs: Self)

Performs the %= operation.

impl<F> Sub<DoubleFloat<F>> for DoubleFloat<F> where
    Self: Float, 

type Output = StatusAnd<Self>

The resulting type after applying the - operator.

fn sub(self, rhs: Self) -> StatusAnd<Self>

Performs the - operation.

impl<F> SubAssign<DoubleFloat<F>> for DoubleFloat<F> where
    Self: Float, 

fn sub_assign(&mut self, rhs: Self)

Performs the -= operation.

impl<F: Copy> Copy for DoubleFloat<F>

impl<F> StructuralPartialEq for DoubleFloat<F>