softfloat-wrapper

softfloat-wrapper is a safe wrapper of Berkeley SoftFloat based on softfloat-sys.

Requirements

• Rust 1.64 - core::ffi types in stable
• rustfmt - used by bindgen to format bindings
• clang and libclang - used by bindgen to generate some bindings

Usage

[dependencies.softfloat-wrapper]
git = "https://github.com/tacanslabs/softfloat-sys.git"

Example

use softfloat_wrapper::{Float, F16, RoundingMode};

fn main() {
    let a = 0x1234;
    let b = 0x1479;

    let a = F16::from_bits(a);
    let b = F16::from_bits(b);
    let d = a.add(b, RoundingMode::TiesToEven);

    let a = f32::from_bits(a.to_f32(RoundingMode::TiesToEven).to_bits());
    let b = f32::from_bits(b.to_f32(RoundingMode::TiesToEven).to_bits());
    let d = f32::from_bits(d.to_f32(RoundingMode::TiesToEven).to_bits());

    println!("{} + {} = {}", a, b, d);
}

Features

Compared to 0.3.x, architecture specializations are chosen through target triple. Architectures properly supported ATM:

• Linux x86-64
• Wasm32

Actual feature gates:

• native-float - enables conversions from and to native floating-point types
• f128 - enables quad-precision F128 type

License

Licensed under either of

• Apache License, Version 2.0, (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
• MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)

at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.