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Quelle fmax.rsSprache: Rust |
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#[cfg_attr(all(test, assert_no_panic), no_panic::no_panic)] pub fn fmax(x: f64, y: f64) -> f64 { // IEEE754 says: maxNum(x, y) is the canonicalized number y if x < y, x if y < x, the // canonicalized number if one operand is a number and the other a quiet NaN. Otherwise it // is either x or y, canonicalized (this means results might differ among implementations). // When either x or y is a signalingNaN, then the result is according to 6.2. // // Since we do not support sNaN in Rust yet, we do not need to handle them. // FIXME(nagisa): due to https://bugs.llvm.org/show_bug.cgi?id=33303 we canonicalize by // multiplying by 1.0. Should switch to the `canonicalize` when it works. (if x.is_nan() || x < y { y } else { x }) * 1.0 }
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2026-07-11