summaryrefslogtreecommitdiffstats
path: root/libtommath/bn_mp_zero.c
diff options
context:
space:
mode:
Diffstat (limited to 'libtommath/bn_mp_zero.c')
-rw-r--r--libtommath/bn_mp_zero.c32
1 files changed, 32 insertions, 0 deletions
diff --git a/libtommath/bn_mp_zero.c b/libtommath/bn_mp_zero.c
new file mode 100644
index 0000000..d697a60
--- /dev/null
+++ b/libtommath/bn_mp_zero.c
@@ -0,0 +1,32 @@
+#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@gmail.com, http://math.libtomcrypt.com
+ */
+
+/* set to zero */
+void mp_zero (mp_int * a)
+{
+ int n;
+ mp_digit *tmp;
+
+ a->sign = MP_ZPOS;
+ a->used = 0;
+
+ tmp = a->dp;
+ for (n = 0; n < a->alloc; n++) {
+ *tmp++ = 0;
+ }
+}
+#endif