/* Retrieve information about a FILE stream.
- Copyright (C) 2007-2010 Free Software Foundation, Inc.
+ Copyright (C) 2007-2012 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
STREAM must not be wide-character oriented. */
-extern size_t freadahead (FILE *stream);
+extern size_t freadahead (FILE *stream) _GL_ATTRIBUTE_PURE;
#ifdef __cplusplus
}