Initial revision

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@14877 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 46 insertions, 0 deletions

diff --git a/libio/ioignore.c b/libio/ioignore.c
new file mode 100644
index 00000000000..a7c2f286755
--- /dev/null
+++ b/libio/ioignore.c
@@ -0,0 +1,46 @@
+/* 
+Copyright (C) 1993 Free Software Foundation
+
+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"
+
+int
+DEFUN(_IO_ignore, (fp, n),
+      register _IO_FILE *fp AND _IO_size_t n)
+{
+  register _IO_size_t more = n;
+  for (;;)
+    {
+      _IO_ssize_t count = fp->_IO_read_end - fp->_IO_read_ptr;
+      if (count > 0)
+	{
+	  if (count > more)
+	    count = more;
+	  fp->_IO_read_ptr += count;
+	  more -= count;
+	}
+      if (more == 0 || __underflow(fp) == EOF)
+	break;
+    }
+  return n - more;
+}