Insert libio rewrite and its various changes from devo.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@15129 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 42 insertions, 0 deletions

diff --git a/libio/peekc.c b/libio/peekc.c
new file mode 100644
index 00000000000..0b3b5140c26
--- /dev/null
+++ b/libio/peekc.c
@@ -0,0 +1,42 @@
+/* Copyright (C) 1993, 1995, 1996, 1997 Free Software Foundation, Inc.
+   This file is part of the GNU IO Library.
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 2, or (at
+   your option) any later version.
+
+   This 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
+   General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this library; see the file COPYING.  If not, write to
+   the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
+   MA 02111-1307, USA.
+
+   As a special exception, if you link this library with files
+   compiled with a GNU compiler to produce an executable, this does
+   not cause the resulting executable to be covered by the GNU General
+   Public License.  This exception does not however invalidate any
+   other reasons why the executable file might be covered by the GNU
+   General Public License.  */
+
+#include "libioP.h"
+#include "stdio.h"
+
+#undef _IO_peekc
+
+int
+_IO_peekc_locked (fp)
+     _IO_FILE *fp;
+{
+  int result;
+  CHECK_FILE (fp, EOF);
+  _IO_cleanup_region_start ((void (*) __P ((void *))) _IO_funlockfile, fp);
+  _IO_flockfile (fp);
+  result = _IO_peekc_unlocked (fp);
+  _IO_cleanup_region_end (1);
+  return result;
+}