X-Git-Url: https://wimlib.net/git/?a=blobdiff_plain;f=include%2Fwimlib%2Flz_hash.h;fp=include%2Fwimlib%2Flz_hash.h;h=0000000000000000000000000000000000000000;hb=605df71262af15c229fa3b5f0f6f7611abc011d1;hp=ae2264edf2feaaff11de90ff160bc52611acf7c0;hpb=f2aeb875aa7e73a486c6b4f8bdf4952e49ec8b8e;p=wimlib

diff --git a/include/wimlib/lz_hash.h b/include/wimlib/lz_hash.h
deleted file mode 100644
index ae2264ed..00000000
--- a/include/wimlib/lz_hash.h
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
- * lz_hash.h - hashing for Lempel-Ziv matchfinding
- *
- * Copyright 2022 Eric Biggers
- *
- * Permission is hereby granted, free of charge, to any person
- * obtaining a copy of this software and associated documentation
- * files (the "Software"), to deal in the Software without
- * restriction, including without limitation the rights to use,
- * copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following
- * conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
- * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
- */
-
-#ifndef _LZ_HASH_H
-#define _LZ_HASH_H
-
-#include "wimlib/types.h"
-
-/*
- * The hash function: given a sequence prefix held in the low-order bits of a
- * 32-bit value, multiply by a carefully-chosen large constant.  Discard any
- * bits of the product that don't fit in a 32-bit value, but take the
- * next-highest @num_bits bits of the product as the hash value, as those have
- * the most randomness.
- */
-static forceinline u32
-lz_hash(u32 seq, unsigned num_bits)
-{
-	return (u32)(seq * 0x1E35A7BD) >> (32 - num_bits);
-}
-
-#endif /* _LZ_HASH_H */