Diff: math/addsub/fp_cmp.c

Revision:

4:cbaf466d717d

Parent:

0:35aa5be3b78d

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/math/addsub/fp_cmp.c	Tue Jun 10 14:23:09 2014 +0000
@@ -0,0 +1,31 @@
+/* TomsFastMath, a fast ISO C bignum library.
+ * 
+ * This project is meant to fill in where LibTomMath
+ * falls short.  That is speed ;-)
+ *
+ * This project is public domain and free for all purposes.
+ * 
+ * Tom St Denis, tomstdenis@gmail.com
+ */
+#include <tfm.h>
+
+int fp_cmp(fp_int *a, fp_int *b)
+{
+   if (a->sign == FP_NEG && b->sign == FP_ZPOS) {
+      return FP_LT;
+   } else if (a->sign == FP_ZPOS && b->sign == FP_NEG) {
+      return FP_GT;
+   } else {
+      /* compare digits */
+      if (a->sign == FP_NEG) {
+         /* if negative compare opposite direction */
+         return fp_cmp_mag(b, a);
+      } else {
+         return fp_cmp_mag(a, b);
+      }
+   }
+}
+
+/* $Source: /cvs/libtom/tomsfastmath/src/addsub/fp_cmp.c,v $ */
+/* $Revision: 1.1 $ */
+/* $Date: 2006/12/31 21:25:53 $ */