nobu	2013-07-01 15:04:23 +0900 (Mon, 01 Jul 2013)

  New Revision: 41721

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=41721

  Log:
    stringio.c: keep coderange
    
    * ext/stringio/stringio.c (strio_write): keep coderange of
      ptr->string.

  Modified files:
    trunk/ChangeLog
    trunk/ext/stringio/stringio.c

Index: ChangeLog
===================================================================
--- ChangeLog	(revision 41720)
+++ ChangeLog	(revision 41721)
@@ -1,4 +1,7 @@ https://github.com/ruby/ruby/blob/trunk/ChangeLog#L1
-Mon Jul  1 15:03:42 2013  Nobuyoshi Nakada  <nobu@r...>
+Mon Jul  1 15:04:20 2013  Nobuyoshi Nakada  <nobu@r...>
+
+	* ext/stringio/stringio.c (strio_write): keep coderange of
+	  ptr->string.
 
 	* string.c (rb_enc_cr_str_buf_cat, rb_str_append): consider an empty
 	  string 7bit-clean and should not discard cached coderange of string
Index: ext/stringio/stringio.c
===================================================================
--- ext/stringio/stringio.c	(revision 41720)
+++ ext/stringio/stringio.c	(revision 41721)
@@ -1182,7 +1182,7 @@ strio_write(VALUE self, VALUE str) https://github.com/ruby/ruby/blob/trunk/ext/stringio/stringio.c#L1182
 	ptr->pos = olen;
     }
     if (ptr->pos == olen) {
-	rb_str_cat(ptr->string, RSTRING_PTR(str), len);
+	rb_enc_str_buf_cat(ptr->string, RSTRING_PTR(str), len, enc);
     }
     else {
 	strio_extend(ptr, ptr->pos, len);

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