* io.c (rb_io_ungetc): don't fail pushed EOF back.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_6@2086 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

3 files changed, 7 insertions, 3 deletions

diff --git a/ChangeLog b/ChangeLog
index 59e7f11a4e..e87be861b0 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Tue Feb 19 13:16:08 2002  Nobuyoshi Nakada  <nobu.nakada@nifty.ne.jp>
+
+	* io.c (rb_io_ungetc): don't fail pushed EOF back.
+
 Mon Feb 18 13:56:44 2002  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
 	* eval.c (block_pass): "&nil" should clear block given.
diff --git a/io.c b/io.c
index d2abd6544f..8bd8603c66 100644
--- a/io.c
+++ b/io.c
@@ -989,7 +989,7 @@ rb_io_ungetc(io, c)
     GetOpenFile(io, fptr);
     rb_io_check_readable(fptr);
 
-    if (ungetc(cc, fptr->f) == EOF)
+    if (ungetc(cc, fptr->f) == EOF && cc != EOF)
 	rb_sys_fail(fptr->path);
     return Qnil;
 }
diff --git a/version.h b/version.h
index 3fe0bce08d..f58e7534f8 100644
--- a/version.h
+++ b/version.h
@@ -1,4 +1,4 @@
 #define RUBY_VERSION "1.6.6"
-#define RUBY_RELEASE_DATE "2002-02-18"
+#define RUBY_RELEASE_DATE "2002-02-19"
 #define RUBY_VERSION_CODE 166
-#define RUBY_RELEASE_CODE 20020218
+#define RUBY_RELEASE_CODE 20020219