* time.c: rdoc fix for <=>

* array.c: ditto

* bignum.c: ditto

* compar.c: ditto

* file.c: ditto

* numeric.c: ditto

* string.c: rdoc fix for <=> and casecmp

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@25523 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 3 insertions, 1 deletions

diff --git a/compar.c b/compar.c
index 8f3f83e40e..3903ec32d1 100644
--- a/compar.c
+++ b/compar.c
@@ -196,7 +196,9 @@ cmp_between(x, min, max)
  *  may be ordered. The class must define the <code><=></code> operator,
  *  which compares the receiver against another object, returning -1, 0,
  *  or +1 depending on whether the receiver is less than, equal to, or
- *  greater than the other object. <code>Comparable</code> uses
+ *  greater than the other object. If the other object is not comparable
+ *  then the <code><=></code> operator should return nil.
+ *  <code>Comparable</code> uses
  *  <code><=></code> to implement the conventional comparison operators
  *  (<code><</code>, <code><=</code>, <code>==</code>, <code>>=</code>,
  *  and <code>></code>) and the method <code>between?</code>.