X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=tomsfastmath%2Fsrc%2Fbin%2Ffp_to_unsigned_bin.c;fp=tomsfastmath%2Fsrc%2Fbin%2Ffp_to_unsigned_bin.c;h=f0eeb56231100c8214f5440016c9d13089eaa4f3;hb=66bc25938679f1d6a1d1200f329093d82a5e99b4;hp=0000000000000000000000000000000000000000;hpb=a52ee0733f420ca20224049260d6fc5cf7d8f621;p=zpackage

diff --git a/tomsfastmath/src/bin/fp_to_unsigned_bin.c b/tomsfastmath/src/bin/fp_to_unsigned_bin.c
new file mode 100644
index 0000000..f0eeb56
--- /dev/null
+++ b/tomsfastmath/src/bin/fp_to_unsigned_bin.c
@@ -0,0 +1,29 @@
+/* TomsFastMath, a fast ISO C bignum library.
+ * 
+ * This project is meant to fill in where LibTomMath
+ * falls short.  That is speed ;-)
+ *
+ * This project is public domain and free for all purposes.
+ * 
+ * Tom St Denis, tomstdenis@gmail.com
+ */
+#include <tfm_private.h>
+
+void fp_to_unsigned_bin(fp_int *a, unsigned char *b)
+{
+  int     x;
+  fp_int  t;
+
+  fp_init_copy(&t, a);
+
+  x = 0;
+  while (fp_iszero (&t) == FP_NO) {
+      b[x++] = (unsigned char) (t.dp[0] & 255);
+      fp_div_2d (&t, 8, &t, NULL);
+  }
+  fp_reverse (b, x);
+}
+
+/* $Source$ */
+/* $Revision$ */
+/* $Date$ */