## # Numeric # # ISO 15.2.7 class Numeric include Comparable ## # Returns the receiver simply. # # ISO 15.2.7.4.1 def +@ self end ## # Returns the receiver's value, negated. # # ISO 15.2.7.4.2 def -@ 0 - self end ## # Returns the absolute value of the receiver. # # ISO 15.2.7.4.3 def abs if self < 0 -self else self end end end ## # Integral # # mruby special - module to share methods between Floats and Integers # to make them compatible module Integral ## # Calls the given block once for each Integer # from +self+ downto +num+. # # ISO 15.2.8.3.15 def downto(num, &block) return to_enum(:downto, num) unless block i = self.to_i while i >= num block.call(i) i -= 1 end self end ## # Returns self + 1 # # ISO 15.2.8.3.19 def next self + 1 end # ISO 15.2.8.3.21 alias succ next ## # Calls the given block +self+ times. # # ISO 15.2.8.3.22 def times &block return to_enum :times unless block i = 0 while i < self block.call i i += 1 end self end ## # Calls the given block once for each Integer # from +self+ upto +num+. # # ISO 15.2.8.3.27 def upto(num, &block) return to_enum(:upto, num) unless block i = self.to_i while i <= num block.call(i) i += 1 end self end ## # Calls the given block from +self+ to +num+ # incremented by +step+ (default 1). # def step(num=nil, step=1, &block) raise ArgumentError, "step can't be 0" if step == 0 return to_enum(:step, num, step) unless block i = __coerce_step_counter(num, step) if num == nil while true block.call(i) i += step end return self end if step > 0 while i <= num block.call(i) i += step end else while i >= num block.call(i) i += step end end self end end ## # Integer # # ISO 15.2.8 class Integer include Integral ## # Returns the receiver simply. # # ISO 15.2.8.3.14 def ceil self end ## # Returns the receiver simply. # # ISO 15.2.8.3.17 def floor self end ## # Returns the receiver simply. # # ISO 15.2.8.3.24 alias round floor ## # Returns the receiver simply. # # ISO 15.2.8.3.26 alias truncate floor end