3 files changed, 10 insertions, 2 deletions
diff --git a/ChangeLog b/ChangeLog
index 5d0ca12bc4..24d2c4e8be 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Mon Feb 17 01:57:45 2014  Benoit Daloze  <eregontp@gmail.com>
+
+	* range.c (Range#size): [DOC] improve description and add examples.
+	  Patch by @skade. [Fixes GH-501]
+
 Mon Feb 17 01:51:49 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* lib/webrick/htmlutils.rb (WEBrick::HTMLUtils#escape): replace HTML
diff --git a/range.c b/range.c
index e2e8388c43..cea90140d9 100644
--- a/range.c
+++ b/range.c
@@ -696,9 +696,12 @@ sym_each_i(VALUE v, void *arg)
  *  call-seq:
  *     rng.size                   -> num
  *
- *  Returns the number of elements in the range.
+ *  Returns the number of elements in the range. Both the begin and the end of
+ *  the Range must be Numeric, otherwise nil is returned.
  *
  *    (10..20).size    #=> 11
+ *    ('a'..'z').size  #=> nil
+ *    (-Float::INFINITY..Float::INFINITY).size #=> Infinity
  */
 
 static VALUE
diff --git a/version.h b/version.h
index acf5d45e42..a5cace0d21 100644
--- a/version.h
+++ b/version.h
@@ -1,6 +1,6 @@
 #define RUBY_VERSION "2.0.0"
 #define RUBY_RELEASE_DATE "2014-02-17"
-#define RUBY_PATCHLEVEL 431
+#define RUBY_PATCHLEVEL 432
 
 #define RUBY_RELEASE_YEAR 2014
 #define RUBY_RELEASE_MONTH 2