a bunch of trivial integer methods

lib-topaz/fixnum.rb

@@ -7,7 +7,8 @@ def succ
     self + 1
   end
 
-  def upto(n)
+  def upto(n, &block)
+    return self.enum_for(:upto) if !block
     i = self
     while i <= n
       yield i

lib-topaz/integer.rb

@@ -1,6 +1,6 @@
 class Integer < Numeric
   def downto(limit, &block)
-    raise NotImplementedError.new("Object#enum_for") if !block
+    return self.enum_for(:downto) unless block
     current = self
     while current >= limit
       yield current
@@ -17,4 +17,29 @@ def times(&block)
     end
     self
   end
+
+  def ceil
+    return self
+  end
+
+  def floor
+    return self
+  end
+
+  def truncate
+    return self
+  end
+
+  def denominator
+    return 1
+  end
+
+  def numerator
+    return self
+  end
+
+  def next
+    return self + 1
+  end
+  alias succ next
 end