* marshal.c (w_float): should not append a dot if no fractal part

  exists.  [ruby-dev:41936]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@28868 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 5 insertions, 0 deletions

diff --git a/test/ruby/test_marshal.rb b/test/ruby/test_marshal.rb
index d78183192c..f3d86277dd 100644
--- a/test/ruby/test_marshal.rb
+++ b/test/ruby/test_marshal.rb
@@ -40,6 +40,11 @@ class TestMarshal < Test::Unit::TestCase
       obj = (x.to_f + y.to_f / z.to_f) * Math.exp(w.to_f / (x.to_f + y.to_f / z.to_f))
       assert_equal obj, Marshal.load(Marshal.dump(obj))
     }
+
+    bug3659 = '[ruby-dev:41936]'
+    [1.0, 10.0, 100.0, 110.0].each {|x|
+      assert_equal(x, Marshal.load(Marshal.dump(x)), bug3659)
+    }
   end
 
   StrClone = String.clone