Use standard CC0 public domain dedication

COPYING

@@ -0,0 +1,121 @@
+Creative Commons Legal Code
+
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+
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README.md

@@ -15,10 +15,8 @@ library, both for compression and decompression, and especially on x86
 processors.  In addition, libdeflate provides optional high compression modes
 that provide a better compression ratio than the zlib's "level 9".
 
-libdeflate is released into the public domain.  The author claims no copyright
+libdeflate is placed in the public domain; see the CC0 Public Domain Dedication
-on it, and anyone is free to use it for any reason.  The software is provided
+in the COPYING file for more details.
-'as-is', without any express or implied warranty; in no event will the author be
-held liable for any damages arising from the use of the software.
 
 Building
 ========

src/adler32.c

@@ -1,11 +1,15 @@
 /*
  * adler32.c - Adler-32 checksum algorithm
  *
- * Author:	Eric Biggers
+ * Written in 2014-2015 by Eric Biggers <ebiggers3@gmail.com>
- * Year:	2014, 2015
  *
- * The author dedicates this file to the public domain.
+ * To the extent possible under law, the author(s) have dedicated all copyright
- * You can do whatever you want with this file.
+ * and related and neighboring rights to this software to the public domain
+ * worldwide. This software is distributed without any warranty.
+ *
+ * You should have received a copy of the CC0 Public Domain Dedication along
+ * with this software. If not, see
+ * <http://creativecommons.org/publicdomain/zero/1.0/>.
  */
 
 #include "adler32.h"

src/aligned_malloc.c

@@ -1,15 +1,21 @@
 /*
  * aligned_malloc.c - aligned memory allocation
  *
+ * Written in 2014-2015 by Eric Biggers <ebiggers3@gmail.com>
+ *
+ * To the extent possible under law, the author(s) have dedicated all copyright
+ * and related and neighboring rights to this software to the public domain
+ * worldwide. This software is distributed without any warranty.
+ *
+ * You should have received a copy of the CC0 Public Domain Dedication along
+ * with this software. If not, see
+ * <http://creativecommons.org/publicdomain/zero/1.0/>.
+ */
+
+/*
  * This file provides portable aligned memory allocation functions that only
  * use malloc() and free().  This avoids portability problems with
  * posix_memalign(), aligned_alloc(), etc.
- *
- * Author:	Eric Biggers
- * Year:	2014, 2015
- *
- * The author dedicates this file to the public domain.
- * You can do whatever you want with this file.
  */
 
 #include "aligned_malloc.h"

src/bt_matchfinder.h

@@ -1,11 +1,15 @@
 /*
  * bt_matchfinder.h - Lempel-Ziv matchfinding with a hash table of binary trees
  *
- * Author:	Eric Biggers
+ * Written in 2014-2016 by Eric Biggers <ebiggers3@gmail.com>
- * Year:	2014-2016
  *
- * The author dedicates this file to the public domain.
+ * To the extent possible under law, the author(s) have dedicated all copyright
- * You can do whatever you want with this file.
+ * and related and neighboring rights to this software to the public domain
+ * worldwide. This software is distributed without any warranty.
+ *
+ * You should have received a copy of the CC0 Public Domain Dedication along
+ * with this software. If not, see
+ * <http://creativecommons.org/publicdomain/zero/1.0/>.
  *
  * ----------------------------------------------------------------------------
  *

src/crc32.c

@@ -1,11 +1,15 @@
 /*
  * crc32.c - CRC-32 checksum algorithm for the gzip format
  *
- * Author:	Eric Biggers
+ * Written in 2014-2015 by Eric Biggers <ebiggers3@gmail.com>
- * Year:	2014, 2015
  *
- * The author dedicates this file to the public domain.
+ * To the extent possible under law, the author(s) have dedicated all copyright
- * You can do whatever you want with this file.
+ * and related and neighboring rights to this software to the public domain
+ * worldwide. This software is distributed without any warranty.
+ *
+ * You should have received a copy of the CC0 Public Domain Dedication along
+ * with this software. If not, see
+ * <http://creativecommons.org/publicdomain/zero/1.0/>.
  */
 
 /*

src/decompress_impl.h

@@ -1,9 +1,21 @@
 /*
  * decompress_impl.h
  *
- * The actual DEFLATE decompression routine, lifted out of deflate_decompress.c
+ * Written in 2014-2016 by Eric Biggers <ebiggers3@gmail.com>
- * so that it can be compiled multiple times with different target instruction
+ *
- * sets.
+ * To the extent possible under law, the author(s) have dedicated all copyright
+ * and related and neighboring rights to this software to the public domain
+ * worldwide. This software is distributed without any warranty.
+ *
+ * You should have received a copy of the CC0 Public Domain Dedication along
+ * with this software. If not, see
+ * <http://creativecommons.org/publicdomain/zero/1.0/>.
+ */
+
+/*
+ * This is the actual DEFLATE decompression routine, lifted out of
+ * deflate_decompress.c so that it can be compiled multiple times with different
+ * target instruction sets.
  */
 
 static enum decompress_result ATTRIBUTES

src/deflate_compress.c

@@ -1,11 +1,15 @@
 /*
  * deflate_compress.c - a compressor for DEFLATE
  *
- * Author:	Eric Biggers
+ * Written in 2014-2016 by Eric Biggers <ebiggers3@gmail.com>
- * Year:	2014-2016
  *
- * The author dedicates this file to the public domain.
+ * To the extent possible under law, the author(s) have dedicated all copyright
- * You can do whatever you want with this file.
+ * and related and neighboring rights to this software to the public domain
+ * worldwide. This software is distributed without any warranty.
+ *
+ * You should have received a copy of the CC0 Public Domain Dedication along
+ * with this software. If not, see
+ * <http://creativecommons.org/publicdomain/zero/1.0/>.
  */
 
 #include <stdlib.h>

src/deflate_decompress.c

@@ -1,11 +1,15 @@
 /*
  * deflate_decompress.c - a decompressor for DEFLATE
  *
- * Author:	Eric Biggers
+ * Written in 2014-2016 by Eric Biggers <ebiggers3@gmail.com>
- * Year:	2014-2016
  *
- * The author dedicates this file to the public domain.
+ * To the extent possible under law, the author(s) have dedicated all copyright
- * You can do whatever you want with this file.
+ * and related and neighboring rights to this software to the public domain
+ * worldwide. This software is distributed without any warranty.
+ *
+ * You should have received a copy of the CC0 Public Domain Dedication along
+ * with this software. If not, see
+ * <http://creativecommons.org/publicdomain/zero/1.0/>.
  *
  * ---------------------------------------------------------------------------
  *

src/gzip_compress.c

@@ -1,11 +1,15 @@
 /*
  * gzip_compress.c - compress with a gzip wrapper
  *
- * Author:	Eric Biggers
+ * Written in 2014-2016 by Eric Biggers <ebiggers3@gmail.com>
- * Year:	2014-2016
  *
- * The author dedicates this file to the public domain.
+ * To the extent possible under law, the author(s) have dedicated all copyright
- * You can do whatever you want with this file.
+ * and related and neighboring rights to this software to the public domain
+ * worldwide. This software is distributed without any warranty.
+ *
+ * You should have received a copy of the CC0 Public Domain Dedication along
+ * with this software. If not, see
+ * <http://creativecommons.org/publicdomain/zero/1.0/>.
  */
 
 #include "crc32.h"

src/gzip_decompress.c

@@ -1,11 +1,15 @@
 /*
  * gzip_decompress.c - decompress with a gzip wrapper
  *
- * Author:	Eric Biggers
+ * Written in 2014-2016 by Eric Biggers <ebiggers3@gmail.com>
- * Year:	2014-2016
  *
- * The author dedicates this file to the public domain.
+ * To the extent possible under law, the author(s) have dedicated all copyright
- * You can do whatever you want with this file.
+ * and related and neighboring rights to this software to the public domain
+ * worldwide. This software is distributed without any warranty.
+ *
+ * You should have received a copy of the CC0 Public Domain Dedication along
+ * with this software. If not, see
+ * <http://creativecommons.org/publicdomain/zero/1.0/>.
  */
 
 #include "crc32.h"

src/hc_matchfinder.h

@@ -1,11 +1,15 @@
 /*
  * hc_matchfinder.h - Lempel-Ziv matchfinding with a hash table of linked lists
  *
- * Author:	Eric Biggers
+ * Written in 2014-2016 by Eric Biggers <ebiggers3@gmail.com>
- * Year:	2014-2016
  *
- * The author dedicates this file to the public domain.
+ * To the extent possible under law, the author(s) have dedicated all copyright
- * You can do whatever you want with this file.
+ * and related and neighboring rights to this software to the public domain
+ * worldwide. This software is distributed without any warranty.
+ *
+ * You should have received a copy of the CC0 Public Domain Dedication along
+ * with this software. If not, see
+ * <http://creativecommons.org/publicdomain/zero/1.0/>.
  *
  * ---------------------------------------------------------------------------
  *

src/x86_cpu_features.c

@@ -1,11 +1,15 @@
 /*
  * x86_cpu_features.c - feature detection for x86 processors
  *
- * Author:	Eric Biggers
+ * Written in 2015 by Eric Biggers <ebiggers3@gmail.com>
- * Year:	2015
  *
- * The author dedicates this file to the public domain.
+ * To the extent possible under law, the author(s) have dedicated all copyright
- * You can do whatever you want with this file.
+ * and related and neighboring rights to this software to the public domain
+ * worldwide. This software is distributed without any warranty.
+ *
+ * You should have received a copy of the CC0 Public Domain Dedication along
+ * with this software. If not, see
+ * <http://creativecommons.org/publicdomain/zero/1.0/>.
  */
 
 #include "x86_cpu_features.h"

src/zlib_compress.c

@@ -1,11 +1,15 @@
 /*
  * zlib_compress.c - compress with a zlib wrapper
  *
- * Author:	Eric Biggers
+ * Written in 2014-2016 by Eric Biggers <ebiggers3@gmail.com>
- * Year:	2014-2016
  *
- * The author dedicates this file to the public domain.
+ * To the extent possible under law, the author(s) have dedicated all copyright
- * You can do whatever you want with this file.
+ * and related and neighboring rights to this software to the public domain
+ * worldwide. This software is distributed without any warranty.
+ *
+ * You should have received a copy of the CC0 Public Domain Dedication along
+ * with this software. If not, see
+ * <http://creativecommons.org/publicdomain/zero/1.0/>.
  */
 
 #include "adler32.h"

src/zlib_decompress.c

@@ -1,11 +1,15 @@
 /*
  * zlib_decompress.c - decompress with a zlib wrapper
  *
- * Author:	Eric Biggers
+ * Written in 2014-2016 by Eric Biggers <ebiggers3@gmail.com>
- * Year:	2014-2016
  *
- * The author dedicates this file to the public domain.
+ * To the extent possible under law, the author(s) have dedicated all copyright
- * You can do whatever you want with this file.
+ * and related and neighboring rights to this software to the public domain
+ * worldwide. This software is distributed without any warranty.
+ *
+ * You should have received a copy of the CC0 Public Domain Dedication along
+ * with this software. If not, see
+ * <http://creativecommons.org/publicdomain/zero/1.0/>.
  */
 
 #include "adler32.h"

tools/benchmark.c

@@ -1,11 +1,15 @@
 /*
  * benchmark.c - a compression testing and benchmark program
  *
- * Author:	Eric Biggers
+ * Written in 2014-2016 by Eric Biggers <ebiggers3@gmail.com>
- * Year:	2014-2016
  *
- * The author dedicates this file to the public domain.
+ * To the extent possible under law, the author(s) have dedicated all copyright
- * You can do whatever you want with this file.
+ * and related and neighboring rights to this software to the public domain
+ * worldwide. This software is distributed without any warranty.
+ *
+ * You should have received a copy of the CC0 Public Domain Dedication along
+ * with this software. If not, see
+ * <http://creativecommons.org/publicdomain/zero/1.0/>.
  */
 
 

tools/gen_crc32_table.c

@@ -1,13 +1,15 @@
 /*
  * gen_crc32_table.c - a program for CRC-32 table generation
  *
- * See crc32.c for more details about CRC computation.
+ * Written in 2014-2015 by Eric Biggers <ebiggers3@gmail.com>
  *
- * Author:	Eric Biggers
+ * To the extent possible under law, the author(s) have dedicated all copyright
- * Year:	2014, 2015
+ * and related and neighboring rights to this software to the public domain
+ * worldwide. This software is distributed without any warranty.
  *
- * The author dedicates this file to the public domain.
+ * You should have received a copy of the CC0 Public Domain Dedication along
- * You can do whatever you want with this file.
+ * with this software. If not, see
+ * <http://creativecommons.org/publicdomain/zero/1.0/>.
  */
 
 #include <stdint.h>

tools/gzip.c

@@ -1,11 +1,15 @@
 /*
  * gzip.c - a gzip-like command line tool that uses libdeflate
  *
- * Author:	Eric Biggers
+ * Written in 2016 by Eric Biggers <ebiggers3@gmail.com>
- * Year:	2016
  *
- * The author dedicates this file to the public domain.
+ * To the extent possible under law, the author(s) have dedicated all copyright
- * You can do whatever you want with this file.
+ * and related and neighboring rights to this software to the public domain
+ * worldwide. This software is distributed without any warranty.
+ *
+ * You should have received a copy of the CC0 Public Domain Dedication along
+ * with this software. If not, see
+ * <http://creativecommons.org/publicdomain/zero/1.0/>.
  */
 
 #include "util.h"