Migrate from devo/gcc/ch.

From-SVN: r22039

gcc/ch/runtime/settextaccess.c

+/* Implement Input/Output runtime actions for CHILL.
+   Copyright (C) 1992,1993 Free Software Foundation, Inc.
+   Author: Wilfried Moser, et al
+
+This file is part of GNU CC.
+
+GNU CC 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.
+
+GNU CC 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 GNU CC; see the file COPYING.  If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+#include "fileio.h"
+
+void
+__settextaccess( Text_Mode*   the_text,
+                 Access_Mode* the_access,
+                 char*        file,
+                 int          line )
+{
+  if( !the_text )
+    CHILLEXCEPTION( file, line, EMPTY, NULL_TEXT );
+
+  if( !the_access )
+    CHILLEXCEPTION( file, line, EMPTY, NULL_ACCESS );  
+
+  CLR_FLAG( the_text->access_sub, IO_TEXTIO );
+
+  the_text->access_sub = the_access;
+  SET_FLAG( the_access, IO_TEXTIO );
+}