Function std::intrinsics::copysignf64

source · 
pub unsafe extern "rust-intrinsic" fn copysignf64(
    x: f64,
    y: f64
) -> f64
🔬This is a nightly-only experimental API. (core_intrinsics)
Expand description

将 f64 值的符号从 y 复制到 x。

此内部函数的稳定版本是 f64::copysign