[rustc.git] / vendor / compiler_builtins / libm / src / math / fmin.rs

#[cfg_attr(all(test, assert_no_panic), no_panic::no_panic)]
pub fn fmin(x: f64, y: f64) -> f64 {
    // IEEE754 says: minNum(x, y) is the canonicalized number x if x < y, y 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 y.is_nan() || x < y { x } else { y }) * 1.0
}
Commit	Line	Data
dc9dc135 XL	1	#[cfg_attr(all(test, assert_no_panic), no_panic::no_panic)]
	2	pub fn fmin(x: f64, y: f64) -> f64 {
	3	// IEEE754 says: minNum(x, y) is the canonicalized number x if x < y, y if y < x, the
	4	// canonicalized number if one operand is a number and the other a quiet NaN. Otherwise it
	5	// is either x or y, canonicalized (this means results might differ among implementations).
	6	// When either x or y is a signalingNaN, then the result is according to 6.2.
	7	//
	8	// Since we do not support sNaN in Rust yet, we do not need to handle them.
	9	// FIXME(nagisa): due to https://bugs.llvm.org/show_bug.cgi?id=33303 we canonicalize by
	10	// multiplying by 1.0. Should switch to the `canonicalize` when it works.
	11	(if y.is_nan() \|\| x < y { x } else { y }) * 1.0
	12	}