Trait rustc_apfloat::ieee::Semantics[−][src]

pub trait Semantics: Sized {
    const BITS: usize;
    const PRECISION: usize;
    const MAX_EXP: ExpInt;
    const MIN_EXP: ExpInt;
    const QNAN_BIT: usize;
    const QNAN_SIGNIFICAND: u128;
    fn from_bits(bits: u128) -> IeeeFloat<Self> { ... }

    fn to_bits(x: IeeeFloat<Self>) -> u128 { ... }
}
🔬 This is a nightly-only experimental API. (rustc_private)

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Represents floating point arithmetic semantics.

Associated Constants

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

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Total number of bits in the in-memory format.

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

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

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

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

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

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

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

MIN_EXP: ExpInt = -<Self>::MAX_EXP + 1

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

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

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QNAN_BIT: usize = <Self>::PRECISION - 2

The significand bit that marks NaN as quiet.

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

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QNAN_SIGNIFICAND: u128 = 1 << <Self>::QNAN_BIT

The significand bitpattern to mark a NaN as quiet. NOTE: for X87DoubleExtended we need to set two bits instead of 2.

Provided Methods

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

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

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

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

Implementors