1 files changed, 28 insertions, 0 deletions
diff --git a/src/3rdparty/SHA-3/Rotation.h b/src/3rdparty/SHA-3/Rotation.h
new file mode 100644
index 0000000000..f25716147d
--- /dev/null
+++ b/src/3rdparty/SHA-3/Rotation.h
@@ -0,0 +1,28 @@
+#ifndef ROTATION_H_
+#define ROTATION_H_
+
+#include <cstdint>
+
+// As we're not using assembly, we can't use the native rotation instructions
+//  replace it with a small inline
+static inline uint64_t rotateLeft(uint64_t x, int n)
+{
+	const unsigned int mask = (8*sizeof(x) - 1);  // assumes width is a power of 2.
+
+	// assert ( (c<=mask) &&"rotate by type width or more");
+	n &= mask;
+	return (x << n) | (x >> ((-n)&mask));
+}
+
+static inline uint64_t rotateRight(uint64_t x, int n)
+{
+	const unsigned int mask = (8 * sizeof(x) - 1);  // assumes width is a power of 2.
+
+	// assert ( (c<=mask) &&"rotate by type width or more");
+	n &= mask;
+	return (x >> n) | (x << ((-n)&mask));
+
+}
+
+#endif //ROTATION_H_
+