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-rw-r--r--libtommath/bn_mp_zero.c26
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diff --git a/libtommath/bn_mp_zero.c b/libtommath/bn_mp_zero.c
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+++ b/libtommath/bn_mp_zero.c
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+#include <tommath.h>
+#ifdef BN_MP_ZERO_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@iahu.ca, http://math.libtomcrypt.org
+ */
+
+/* set to zero */
+void
+mp_zero (mp_int * a)
+{
+ a->sign = MP_ZPOS;
+ a->used = 0;
+ memset (a->dp, 0, sizeof (mp_digit) * a->alloc);
+}
+#endif