Function std::intrinsics::fmaf32

pub unsafe extern "rust-intrinsic" fn fmaf32(
    a: f32, 
    b: f32, 
    c: f32
) -> f32

🔬 This is a nightly-only experimental API. (core_intrinsics)

为 f32 值返回 a * b + c。

此内部函数的稳定版本是 f32::mul_add