first commit

nghttp2/third-party/mruby/mrbgems/mruby-numeric-ext/mrblib/numeric_ext.rb

@@ -0,0 +1,21 @@
+class Numeric
+  def zero?
+    self == 0
+  end
+
+  def nonzero?
+    if self == 0
+      nil
+    else
+      self
+    end
+  end
+
+  def positive?
+    self > 0
+  end
+
+  def negative?
+    self < 0
+  end
+end