module Polyfill module V2_4 module Integer module Ceil module Method def ceil(ndigits = 0) ndigits = ndigits.to_int return super() if ndigits == 0 return to_f if ndigits > 0 place = 10 ** -ndigits (self.to_f / place).ceil * place end if RUBY_VERSION < '2.4.0' end refine ::Integer do include Method end end end end end