lib/zold/amount.rb in zold-0.14.8 vs lib/zold/amount.rb in zold-0.14.9

@@ -1,5 +1,7 @@
+# frozen_string_literal: true
+
 # Copyright (c) 2018 Yegor Bugayenko
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the 'Software'), to deal
 # in the Software without restriction, including without limitation the rights
@@ -104,10 +106,10 @@
     def zero?
       @coins.zero?
     end
 
     def negative?
-      @coins < 0
+      @coins.negative?
     end
 
     def *(other)
       c = (@coins * other).to_i
       raise "Overflow, can't multiply #{@coins} by #{m}" if c > Amount::MAX