vendor/compiler_builtins/libm/src/math/copysignf.rs


1
2
3
4
5
6
7
8
9
10
11
12

/// Sign of Y, magnitude of X (f32)
///
/// Constructs a number with the magnitude (absolute value) of its
/// first argument, `x`, and the sign of its second argument, `y`.
#[cfg_attr(all(test, assert_no_panic), no_panic::no_panic)]
pub fn copysignf(x: f32, y: f32) -> f32 {
    let mut ux = x.to_bits();
    let uy = y.to_bits();
    ux &= 0x7fffffff;
    ux |= uy & 0x80000000;
    f32::from_bits(ux)
}