/* -*-c-*-
*
- * $Id: mp.h,v 1.17 2003/05/16 09:09:24 mdw Exp $
+ * $Id: mp.h,v 1.18 2004/04/03 03:32:05 mdw Exp $
*
* Simple multiprecision arithmetic
*
/*----- Revision history --------------------------------------------------*
*
* $Log: mp.h,v $
+ * Revision 1.18 2004/04/03 03:32:05 mdw
+ * General robustification.
+ *
* Revision 1.17 2003/05/16 09:09:24 mdw
* Fix @mp_lsl2c@. Turns out to be surprisingly tricky.
*
/* --- Other handy macros --- */
#define MP_ISNEG(x) ((x)->f & MP_NEG)
-#define MP_ISZERO(x) MP_EQ((x), MP_ZERO)
+#define MP_ISZERO(x) (!MP_LEN(x))
#define MP_ISPOS(x) (!MP_ISNEG(x) && !MP_ISZERO(x))
+#define MP_ISODD(x) (!MP_ISZERO(x) && ((x)->v[0] & 1u))
+#define MP_ISEVEN(x) (!MP_ISODD(x))
/*----- Arithmetic operations ---------------------------------------------*/