[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit

Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/libc/glibc/glibc-2.22/libio/__fpurge.c b/ap/libc/glibc/glibc-2.22/libio/__fpurge.c
new file mode 100644
index 0000000..065cf61
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.22/libio/__fpurge.c
@@ -0,0 +1,42 @@
+/* Copyright (C) 2000-2015 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <stdio_ext.h>
+#include "libioP.h"
+
+void
+__fpurge (FILE *fp)
+{
+  if (fp->_mode > 0)
+    {
+      /* Wide-char stream.  */
+      if (_IO_in_backup (fp))
+	_IO_free_wbackup_area (fp);
+
+      fp->_wide_data->_IO_read_end = fp->_wide_data->_IO_read_ptr;
+      fp->_wide_data->_IO_write_ptr = fp->_wide_data->_IO_write_base;
+    }
+  else
+    {
+      /* Byte stream.  */
+      if (_IO_in_backup (fp))
+	_IO_free_backup_area (fp);
+
+      fp->_IO_read_end = fp->_IO_read_ptr;
+      fp->_IO_write_ptr = fp->_IO_write_base;
+    }
+}