* string.c (rb_str_equal): should return nil for non string

  operand to conform comparable convention. [ruby-dev:20759]

* object.c (rb_equal): preserve nil if "==" returns nil.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@4112 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,10 @@
+Tue Jul 22 02:22:45 2003  Yukihiro Matsumoto  <[email protected]>
+
+	* string.c (rb_str_equal): should return nil for non string
+	  operand to conform comparable convention. [ruby-dev:20759]
+
+	* object.c (rb_equal): preserve nil if "==" returns nil.
+
 Tue Jul 22 00:19:19 2003  Yukihiro Matsumoto  <[email protected]>
 
 	* lib/tmpdir.rb: new library to get temporary directory path,

object.c

@@ -42,7 +42,7 @@ rb_equal(obj1, obj2)
     if (obj1 == obj2) return Qtrue;
     result = rb_funcall(obj1, id_eq, 1, obj2);
     if (RTEST(result)) return Qtrue;
-    return Qfalse;
+    return result;
 }
 
 int

string.c

@@ -792,7 +792,7 @@ rb_str_equal(str1, str2)
     if (str1 == str2) return Qtrue;
     if (TYPE(str2) != T_STRING) {
 	if (!rb_respond_to(str2, rb_intern("to_str"))) {
-	    return Qfalse;
+	    return Qnil;
 	}
 	return rb_equal(str2, str1);
     }