* ext/stringio/stringio.c (strio_each): Return an enumerator if no

block is given.
  (strio_each_byte): Return an enumerator if no block is given,
  and return self if one is given as the rdoc says.

* io.c (rb_io_each_byte): Fix rdoc.  IO#each_byte returns self,
  not nil.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@16632 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,13 @@
+Tue May 27 17:59:34 2008  Akinori MUSHA  <knu@iDaemons.org>
+
+	* ext/stringio/stringio.c (strio_each): Return an enumerator if no
+	  block is given.
+	  (strio_each_byte): Return an enumerator if no block is given,
+	  and return self if one is given as the rdoc says.
+
+	* io.c (rb_io_each_byte): Fix rdoc.  IO#each_byte returns self,
+	  not nil.
+
 Tue May 27 16:02:58 2008  Akinori MUSHA  <knu@iDaemons.org>
 
 	* eval.c (rb_mod_module_exec, Init_eval): Add

NEWS

@@ -328,11 +328,16 @@ with all sufficient information, see the ChangeLog file.
 
 * stringio
 
-  * Add new methods. (aliases for compatibility with 1.9)
+  * StringIO#getbyte
+  * StringIO#readbyte
 
-    * StringIO#getbyte
-    * StringIO#readbyte
+    Add new methods. (aliases for compatibility with 1.9)
 
+  * StringIO#each
+  * StringIO#each_line
+  * StringIO#each_byte
+
+    Return an enumerator if no block is given.
 
 * tempfile
 
@@ -412,6 +417,13 @@ with all sufficient information, see the ChangeLog file.
     always use Date.strptime() when you know what you are dealing
     with.
 
+* stringio
+
+  * StringIO#each_byte
+
+    The return value changed from nil to self.  This is what the
+    document says and the same as each_line() does.
+
 * tempfile
 
   * The file name format has changed.  No dots are included by default

ext/stringio/stringio.c

@@ -710,11 +710,14 @@ strio_each_byte(self)
     VALUE self;
 {
     struct StringIO *ptr = readable(StringIO(self));
-    while (ptr->pos < RSTRING(ptr->string)->len) {
-	char c = RSTRING(ptr->string)->ptr[ptr->pos++];
+
+    RETURN_ENUMERATOR(self, 0, 0);
+
+    while (ptr->pos < RSTRING_LEN(ptr->string)) {
+	char c = RSTRING_PTR(ptr->string)[ptr->pos++];
 	rb_yield(CHR2FIX(c));
     }
-    return Qnil;
+    return self;
 }
 
 /*
@@ -971,6 +974,8 @@ strio_each(argc, argv, self)
     struct StringIO *ptr = StringIO(self);
     VALUE line;
 
+    RETURN_ENUMERATOR(self, argc, argv);
+
     while (!NIL_P(line = strio_getline(argc, argv, readable(ptr)))) {
 	rb_yield(line);
     }

io.c

@@ -1981,7 +1981,7 @@ rb_io_each_line(argc, argv, io)
 
 /*
  *  call-seq:
- *     ios.each_byte {|byte| block }  => nil
+ *     ios.each_byte {|byte| block }  => ios
  *  
  *  Calls the given block once for each byte (0..255) in <em>ios</em>,
  *  passing the byte as an argument. The stream must be opened for