* ext/digest/lib/digest/hmac.rb (Digest::HMAC::update): Minor

optimization.

* ext/digest/digest.c (rb_digest_instance_equal): Allow comparing
  a digest instance with another of a different class.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@11254 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,11 @@
+Wed Nov  1 02:22:31 2006  Akinori MUSHA  <knu@iDaemons.org>
+
+	* ext/digest/lib/digest/hmac.rb (Digest::HMAC::update): Minor
+	  optimization.
+
+	* ext/digest/digest.c (rb_digest_instance_equal): Allow comparing
+	  a digest instance with another of a different class.
+
 Tue Oct 31 17:03:21 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
 	* time.c (time_dup): duplicate the class of original time.

ext/digest/digest.c

@@ -286,16 +286,16 @@ rb_digest_instance_inspect(VALUE self)
  *     digest_obj == string -> boolean
  *
  * If a string is given, checks whether it is equal to the hex-encoded
- * hash value of the digest object.  If another instance of the same
- * digest class is given, checks whether they have the same hash
- * value.  Otherwise returns false.
+ * hash value of the digest object.  If another digest instance is
+ * given, checks whether they have the same hash value.  Otherwise
+ * returns false.
  */
 static VALUE
 rb_digest_instance_equal(VALUE self, VALUE other)
 {
     VALUE str1, str2;
 
-    if (rb_obj_class(self) == rb_obj_class(other)) {
+    if (rb_obj_is_kind_of(other, rb_mDigest_Instance) == Qtrue) {
         str1 = rb_digest_instance_digest(0, 0, self);
         str2 = rb_digest_instance_digest(0, 0, other);
     } else {

ext/digest/lib/digest/hmac.rb

@@ -67,7 +67,8 @@ module Digest
     end
 
     def update(text)
-      @md.reset.update(@opad + @md.digest(@ipad + text))
+      # @md is reset when digest() returns
+      @md.update(@opad + @md.digest(@ipad + text))
       self
     end