Function std::intrinsics::exp2f64

pub unsafe extern "rust-intrinsic" fn exp2f64(x: f64) -> f64

🔬 This is a nightly-only experimental API. (core_intrinsics #0)

intrinsics are unlikely to ever be stabilized, instead they should be used through stabilized interfaces in the rest of the standard library

Returns 2 raised to the power of an f64.