1 files changed, 28 insertions, 0 deletions
diff --git a/tensorflow/core/lib/hash/hash.h b/tensorflow/core/lib/hash/hash.h
new file mode 100644
index 0000000000..af56218fed
--- /dev/null
+++ b/tensorflow/core/lib/hash/hash.h
@@ -0,0 +1,28 @@
+// Simple hash functions used for internal data structures
+
+#ifndef TENSORFLOW_LIB_HASH_HASH_H_
+#define TENSORFLOW_LIB_HASH_HASH_H_
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include <string>
+
+#include "tensorflow/core/platform/port.h"
+
+namespace tensorflow {
+
+extern uint32 Hash32(const char* data, size_t n, uint32 seed);
+extern uint64 Hash64(const char* data, size_t n, uint64 seed);
+
+inline uint64 Hash64(const char* data, size_t n) {
+  return Hash64(data, n, 0xDECAFCAFFE);
+}
+
+inline uint64 Hash64(const string& str) {
+  return Hash64(str.data(), str.size());
+}
+
+}  // namespace tensorflow
+
+#endif  // TENSORFLOW_LIB_HASH_HASH_H_