hcrypto: import libtommath v1.2.0

lib/hcrypto/libtommath/bn_mp_clamp.c

@@ -1,19 +1,7 @@
-#include <tommath.h>
+#include "tommath_private.h"
 #ifdef BN_MP_CLAMP_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 */
 
 /* trim unused digits
  *
@@ -22,23 +10,18 @@
  * Typically very fast.  Also fixes the sign if there
  * are no more leading digits
  */
-void
-mp_clamp (mp_int * a)
+void mp_clamp(mp_int *a)
 {
-  /* decrease used while the most significant digit is
-   * zero.
-   */
-  while (a->used > 0 && a->dp[a->used - 1] == 0) {
-    --(a->used);
-  }
+   /* decrease used while the most significant digit is
+    * zero.
+    */
+   while ((a->used > 0) && (a->dp[a->used - 1] == 0u)) {
+      --(a->used);
+   }
 
-  /* reset the sign flag if used == 0 */
-  if (a->used == 0) {
-    a->sign = MP_ZPOS;
-  }
+   /* reset the sign flag if used == 0 */
+   if (a->used == 0) {
+      a->sign = MP_ZPOS;
+   }
 }
 #endif
-
-/* $Source: /cvs/libtom/libtommath/bn_mp_clamp.c,v $ */
-/* $Revision: 1.4 $ */
-/* $Date: 2006/12/28 01:25:13 $ */