hcrypto: import libtommath v1.2.0

lib/hcrypto/libtommath/bn_mp_clear.c

@@ -1,44 +1,20 @@
-#include <tommath.h>
+#include "tommath_private.h"
 #ifdef BN_MP_CLEAR_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 */
 
 /* clear one (frees)  */
-void
-mp_clear (mp_int * a)
+void mp_clear(mp_int *a)
 {
-  int i;
+   /* only do anything if a hasn't been freed previously */
+   if (a->dp != NULL) {
+      /* free ram */
+      MP_FREE_DIGITS(a->dp, a->alloc);
 
-  /* only do anything if a hasn't been freed previously */
-  if (a->dp != NULL) {
-    /* first zero the digits */
-    for (i = 0; i < a->used; i++) {
-        a->dp[i] = 0;
-    }
-
-    /* free ram */
-    XFREE(a->dp);
-
-    /* reset members to make debugging easier */
-    a->dp    = NULL;
-    a->alloc = a->used = 0;
-    a->sign  = MP_ZPOS;
-  }
+      /* reset members to make debugging easier */
+      a->dp    = NULL;
+      a->alloc = a->used = 0;
+      a->sign  = MP_ZPOS;
+   }
 }
 #endif
-
-/* $Source: /cvs/libtom/libtommath/bn_mp_clear.c,v $ */
-/* $Revision: 1.4 $ */
-/* $Date: 2006/12/28 01:25:13 $ */