//-----------------------------------------------------------------------------
// utilities
//-----------------------------------------------------------------------------
+#ifndef __UTIL_H_
+#define __UTIL_H_
#include <stdio.h>
#include <stdint.h> //included in data.h
void rol(uint8_t *data, const size_t len);
uint32_t SwapBits(uint32_t value, int nrbits);
uint32_t reflect(uint32_t v, int b);
-uint64_t HornerScheme(uint64_t num, uint64_t divider, uint64_t factor);
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+uint64_t HornerScheme(uint64_t num, uint64_t divider, uint64_t factor);
+
+#endif
\ No newline at end of file