Function ramp::ll::pow::pow

pub unsafe fn pow(wp: LimbsMut, ap: Limbs, an: i32, exp: u32)

Takes {ap, an} to the power of exp and stores the result to wp. wp is assumed to have enough space to store the result (which can be calculated using num_pow_limbs

{wp, an*exp} must be disjoint from {ap, an}. {ap, an} must not be zero. exp must be greater than 2