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authoreregon <eregon@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2014-01-09 21:23:45 +0000
committereregon <eregon@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2014-01-09 21:23:45 +0000
commitd31cd06516c01a6a2003bca7750da05d86bca7c8 (patch)
treecca0416df04aa4c19554ce74202d728725abbd7d /range.c
parente5839862e4ad6ac171319629f5a593789f8380c4 (diff)
* range.c (Range#size): [DOC] improve description and add examples.
Patch by @skade. [Fixes GH-501] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44549 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'range.c')
-rw-r--r--range.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/range.c b/range.c
index 4526dcb..d2d9a70 100644
--- a/range.c
+++ b/range.c
@@ -711,9 +711,12 @@ sym_each_i(RB_BLOCK_CALL_FUNC_ARGLIST(v, 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