hcrypto: import libtommath v1.2.0

lib/hcrypto/libtommath/bn_mp_cmp_mag.c

@@ -1,55 +1,39 @@
-#include <tommath.h>
+#include "tommath_private.h"
 #ifdef BN_MP_CMP_MAG_C
-/* LibTomMath, multiple-precision integer library -- Tom St Denis
- *
- * LibTomMath is a library that provides multiple-precision
- * integer arithmetic as well as number theoretic functionality.
- *
- * The library was designed directly after the MPI library by
- * Michael Fromberger but has been written from scratch with
- * additional optimizations in place.
- *
- * The library is free for all purposes without any express
- * guarantee it works.
- *
- * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
- */
+/* LibTomMath, multiple-precision integer library -- Tom St Denis */
+/* SPDX-License-Identifier: Unlicense */
 
 /* compare maginitude of two ints (unsigned) */
-int mp_cmp_mag (mp_int * a, mp_int * b)
+mp_ord mp_cmp_mag(const mp_int *a, const mp_int *b)
 {
-  int     n;
-  mp_digit *tmpa, *tmpb;
+   int     n;
+   const mp_digit *tmpa, *tmpb;
 
-  /* compare based on # of non-zero digits */
-  if (a->used > b->used) {
-    return MP_GT;
-  }
-
-  if (a->used < b->used) {
-    return MP_LT;
-  }
-
-  /* alias for a */
-  tmpa = a->dp + (a->used - 1);
-
-  /* alias for b */
-  tmpb = b->dp + (a->used - 1);
-
-  /* compare based on digits  */
-  for (n = 0; n < a->used; ++n, --tmpa, --tmpb) {
-    if (*tmpa > *tmpb) {
+   /* compare based on # of non-zero digits */
+   if (a->used > b->used) {
       return MP_GT;
-    }
+   }
 
-    if (*tmpa < *tmpb) {
+   if (a->used < b->used) {
       return MP_LT;
-    }
-  }
-  return MP_EQ;
+   }
+
+   /* alias for a */
+   tmpa = a->dp + (a->used - 1);
+
+   /* alias for b */
+   tmpb = b->dp + (a->used - 1);
+
+   /* compare based on digits  */
+   for (n = 0; n < a->used; ++n, --tmpa, --tmpb) {
+      if (*tmpa > *tmpb) {
+         return MP_GT;
+      }
+
+      if (*tmpa < *tmpb) {
+         return MP_LT;
+      }
+   }
+   return MP_EQ;
 }
 #endif
-
-/* $Source: /cvs/libtom/libtommath/bn_mp_cmp_mag.c,v $ */
-/* $Revision: 1.4 $ */
-/* $Date: 2006/12/28 01:25:13 $ */