| /* SPDX-License-Identifier: MIT OR Apache-2.0 */ |
| //! IEEE 754-2019 `minimum`. |
| //! |
| //! Per the spec, returns the canonicalized result of: |
| //! - `x` if `x < y` |
| //! - `y` if `y < x` |
| //! - -0.0 if x and y are zero with opposite signs |
| //! - qNaN if either operation is NaN |
| //! |
| //! Note that the IEEE 754-2019 specifies that a sNaN in either argument should signal invalid, |
| //! but we do not implement this. |
| |
| use crate::support::Float; |
| |
| #[inline] |
| pub fn fminimum<F: Float>(x: F, y: F) -> F { |
| let res = if x.is_nan() { |
| x |
| } else if y.is_nan() { |
| y |
| } else if x < y || (x.biteq(F::NEG_ZERO) && y.is_sign_positive()) { |
| x |
| } else { |
| y |
| }; |
| |
| res.canonicalize() |
| } |
