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[eos/base.git] / util / src / TclTk / tcl8.6.12 / libtommath / bn_s_mp_reverse.c

diff --git a/util/src/TclTk/tcl8.6.12/libtommath/bn_s_mp_reverse.c b/util/src/TclTk/tcl8.6.12/libtommath/bn_s_mp_reverse.c
new file mode 100644 (file)
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--- /dev/null
+++ b/util/src/TclTk/tcl8.6.12/libtommath/bn_s_mp_reverse.c
@@ -0,0 +1,22 @@
+#include "tommath_private.h"
+#ifdef BN_S_MP_REVERSE_C
+/* LibTomMath, multiple-precision integer library -- Tom St Denis */
+/* SPDX-License-Identifier: Unlicense */
+
+/* reverse an array, used for radix code */
+void s_mp_reverse(unsigned char *s, size_t len)
+{
+   size_t   ix, iy;
+   unsigned char t;
+
+   ix = 0u;
+   iy = len - 1u;
+   while (ix < iy) {
+      t     = s[ix];
+      s[ix] = s[iy];
+      s[iy] = t;
+      ++ix;
+      --iy;
+   }
+}
+#endif