Diff: math/bin/fp_reverse.c

Revision:

4:cbaf466d717d

Parent:

0:35aa5be3b78d

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/math/bin/fp_reverse.c	Tue Jun 10 14:23:09 2014 +0000
@@ -0,0 +1,31 @@
+/* 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.h>
+
+/* reverse an array, used for radix code */
+void fp_reverse (unsigned char *s, int len)
+{
+  int     ix, iy;
+  unsigned char t;
+
+  ix = 0;
+  iy = len - 1;
+  while (ix < iy) {
+    t     = s[ix];
+    s[ix] = s[iy];
+    s[iy] = t;
+    ++ix;
+    --iy;
+  }
+}
+
+/* $Source: /cvs/libtom/tomsfastmath/src/bin/fp_reverse.c,v $ */
+/* $Revision: 1.2 $ */
+/* $Date: 2007/02/27 02:38:44 $ */