Trying with a hashtable instead of a dumb structure.

1 files changed, 30 insertions, 0 deletions

diff --git a/lookupa.h b/lookupa.h
new file mode 100644
index 0000000..8001b3c
--- /dev/null
+++ b/lookupa.h
@@ -0,0 +1,30 @@
+/*
+------------------------------------------------------------------------------
+By Bob Jenkins, September 1996.
+lookupa.h, a hash function for table lookup, same function as lookup.c.
+Use this code in any way you wish.  Public Domain.  It has no warranty.
+Source is http://burtleburtle.net/bob/c/lookupa.h
+------------------------------------------------------------------------------
+*/
+
+#ifndef LOOKUPA
+#define LOOKUPA
+
+#include <stdint.h>
+
+#define CHECKSTATE 8
+#define hashsize(n) ((uint32_t)1<<(n))
+#define hashmask(n) (hashsize(n)-1)
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+uint32_t lookup(uint8_t * k, uint32_t length, uint32_t level);
+void checksum(uint8_t * k, uint32_t length, uint32_t * state);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LOOKUPA */