lib/polyfill/v2_4/float.rb in polyfill-0.6.0 vs lib/polyfill/v2_4/float.rb in polyfill-0.7.0

@@ -1,9 +1,44 @@
-require_relative 'float/instance'
-
 module Polyfill
   module V2_4
     module Float
-      include Instance
+      def ceil(ndigits = 0)
+        ndigits = ndigits.to_int
+        return super() if ndigits == 0
+
+        if ndigits > 0
+          place = 10**ndigits
+          (self * place).ceil / place.to_f
+        else
+          place = 10**-ndigits
+          (self / place).ceil * place
+        end
+      end
+
+      def floor(ndigits = 0)
+        ndigits = ndigits.to_int
+        return super() if ndigits == 0
+
+        if ndigits > 0
+          place = 10**ndigits
+          (self * place).floor / place.to_f
+        else
+          place = 10**-ndigits
+          (self / place).floor * place
+        end
+      end
+
+      def truncate(ndigits = 0)
+        ndigits = ndigits.to_int
+        return super() if ndigits == 0
+
+        if ndigits > 0
+          place = 10**ndigits
+          (self * place).truncate / place.to_f
+        else
+          place = 10**-ndigits
+          (self / place).truncate * place
+        end
+      end
     end
   end
 end