/* intprops.h -- properties of integer types
- Copyright (C) 2001-2005, 2009-2011 Free Software Foundation, Inc.
+ Copyright (C) 2001-2005, 2009-2013 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
#define TYPE_SIGNED(t) (! ((t) 0 < (t) -1))
/* Return 1 if the integer expression E, after integer promotion, has
- a signed type. E should not have side effects. */
+ a signed type. */
#define _GL_INT_SIGNED(e) (_GL_INT_NEGATE_CONVERT (e, 1) < 0)
/* Return 1 if the __typeof__ keyword works. This could be done by
'configure', but for now it's easier to do it by hand. */
-#if 2 <= __GNUC__ || 0x5110 <= __SUNPRO_C
+#if (2 <= __GNUC__ || defined __IBM__TYPEOF__ \
+ || (0x5110 <= __SUNPRO_C && !__STDC__))
# define _GL_HAVE___TYPEOF__ 1
#else
# define _GL_HAVE___TYPEOF__ 0