#[unsafe(no_mangle)]pub extern "C" fn nstd_math_atan2_f64(
x: NSTDFloat64,
y: NSTDFloat64,
) -> NSTDFloat64Available on crate feature
math only.#[unsafe(no_mangle)]pub extern "C" fn nstd_math_atan2_f64(
x: NSTDFloat64,
y: NSTDFloat64,
) -> NSTDFloat64math only.