diff tomsfastmath/src/addsub/fp_cmp_mag.c @ 643:a362b62d38b2 dropbear-tfm

Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a with Makefile.in renamed
author Matt Johnston <matt@ucc.asn.au>
date Wed, 23 Nov 2011 18:10:20 +0700
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tomsfastmath/src/addsub/fp_cmp_mag.c	Wed Nov 23 18:10:20 2011 +0700
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+/* 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, [email protected]
+ */
+#include <tfm.h>
+
+int fp_cmp_mag(fp_int *a, fp_int *b)
+{
+   int x;
+
+   if (a->used > b->used) {
+      return FP_GT;
+   } else if (a->used < b->used) {
+      return FP_LT;
+   } else {
+      for (x = a->used - 1; x >= 0; x--) {
+          if (a->dp[x] > b->dp[x]) {
+             return FP_GT;
+          } else if (a->dp[x] < b->dp[x]) {
+             return FP_LT;
+          }
+      }
+   }
+   return FP_EQ;
+}
+
+
+/* $Source$ */
+/* $Revision$ */
+/* $Date$ */