28 lines
626 B
Rust
28 lines
626 B
Rust
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/* SPDX-License-Identifier: MIT OR Apache-2.0 */
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//! IEEE 754-2019 `maximum`.
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//!
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//! Per the spec, returns the canonicalized result of:
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//! - `x` if `x > y`
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//! - `y` if `y > x`
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//! - +0.0 if x and y are zero with opposite signs
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//! - qNaN if either operation is NaN
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//!
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//! Excluded from our implementation is sNaN handling.
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use crate::support::Float;
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#[inline]
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pub fn fmaximum<F: Float>(x: F, y: F) -> F {
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let res = if x.is_nan() {
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x
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} else if y.is_nan() {
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y
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} else if x > y || (y.biteq(F::NEG_ZERO) && x.is_sign_positive()) {
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x
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} else {
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y
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};
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res.canonicalize()
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}
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