kc3-lang/zlib/trees.c
Branch :
Log
| Author | Commit | Date | CI | Message |
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e9d5486e | 2023-04-14 01:42:03 | Remove K&R function definitions from zlib. C2X has removed K&R definitions from the C function syntax. Though the standard has not yet been approved, some high-profile compilers are now issuing warnings when such definitions are encountered. | |
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84c6716a | 2022-10-01 17:04:06 | Minor formatting improvements. No code changes. | |
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7fabcb53 | 2022-10-01 19:55:29 | Fix bug in block type selection when Z_FIXED used. A fixed block could be chosen when a stored block was smaller. Now the smaller of the two is always chosen. | |
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5752b171 | 2022-08-22 13:13:06 | Fix some typos. No code changes. | |
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3df84242 | 2022-03-28 10:50:16 | Silence some warnings from Visual Studio C. | |
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21767c65 | 2022-03-27 15:47:03 | zlib 1.2.12 | |
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8678871f | 2021-12-31 16:57:07 | Replace black/white with allow/block. (theresa-m) | |
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5c44459c | 2018-04-17 22:09:22 | Fix a bug that can crash deflate on some input when using Z_FIXED. This bug was reported by Danilo Ramos of Eideticom, Inc. It has lain in wait 13 years before being found! The bug was introduced in zlib 1.2.2.2, with the addition of the Z_FIXED option. That option forces the use of fixed Huffman codes. For rare inputs with a large number of distant matches, the pending buffer into which the compressed data is written can overwrite the distance symbol table which it overlays. That results in corrupted output due to invalid distances, and can result in out-of-bound accesses, crashing the application. The fix here combines the distance buffer and literal/length buffers into a single symbol buffer. Now three bytes of pending buffer space are opened up for each literal or length/distance pair consumed, instead of the previous two bytes. This assures that the pending buffer cannot overwrite the symbol table, since the maximum fixed code compressed length/distance is 31 bits, and since there are four bytes of pending space for every three bytes of symbol space. | |
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a5773513 | 2017-10-12 20:03:51 | Make the names in functions declarations identical to definitions. | |
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723e928b | 2017-10-12 19:44:01 | Avoid an undefined behavior of memcpy() in _tr_stored_block(). Allegedly the behavior of memcpy() is undefined if the source pointer is NULL, even if the number of bytes to copy is zero. | |
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37ed2112 | 2017-01-13 23:10:03 | Update vestigial comment from very old Info-ZIP deflate. | |
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2fa463ba | 2016-12-31 11:41:31 | zlib 1.2.9 | |
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8f147c3d | 2016-12-30 22:05:05 | Avoid some random compiler warnings on various platforms. | |
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21c66cd5 | 2016-11-20 11:36:15 | Increase verbosity required to warn about bit length overflow. When debugging the Huffman coding would warn about resulting codes greater than 15 bits in length. This is handled properly, and is not uncommon. This increases the verbosity of the warning by one, so that it is not displayed by default. | |
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a456d898 | 2016-10-30 09:25:32 | Use memcpy for stored blocks. This speeds up level 0 by about a factor of three, as compared to the previous byte-at-a-time loop. We can do much better though. A later commit avoids this copy for level 0 with large buffers, instead copying directly from the input to the output. This commit still speeds up storing incompressible data found when compressing normally. | |
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7096424f | 2016-10-11 22:15:50 | Clean up type conversions. | |
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82e9dc60 | 2015-08-15 18:04:50 | Use const for static tree descriptions in deflate. This is in order to permit shared memory for these structures. | |
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51a223de | 2015-07-28 22:44:31 | Avoid use of DEBUG macro -- change to ZLIB_DEBUG. | |
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62d6112a | 2012-08-12 18:08:52 | Clean up the usage of z_const and respect const usage within zlib. This patch allows zlib to compile cleanly with the -Wcast-qual gcc warning enabled, but only if ZLIB_CONST is defined, which adds const to next_in and msg in z_stream and in the in_func prototype. A --const option is added to ./configure which adds -DZLIB_CONST to the compile flags, and adds -Wcast-qual to the compile flags when ZLIBGCCWARN is set in the environment. | |
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0b828b4a | 2011-12-29 13:19:27 | Write out all of the available bits when using Z_BLOCK. Previously, the bit buffer would hold 1 to 16 bits after "all" of the output is provided after a Z_BLOCK deflate() call. Now at most seven bits remain in the output buffer after Z_BLOCK. flush_pending() now flushes the bit buffer before copying out the byte buffer, in order for it to really flush as much as possible. | |
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8f5eceef | 2012-01-07 11:00:37 | Remove second empty static block for Z_PARTIAL_FLUSH. Z_PARTIAL_FLUSH would sometimes emit two empty static blocks instead of one in order to provide enough lookahead for inflate to be able to decode what was last compressed. inflate no longer needs that much lookahead, so this removes the possibility of emitting the second empty static block. Z_PARTIAL_FLUSH will now emit only one empty static block. | |
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263b1a05 | 2012-01-07 09:54:40 | Allow deflatePrime() to insert bits in the middle of a stream. This allows the insertion of multiple empty static blocks for the purpose of efficiently bringing a stream to a byte boundary. | |
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9712272c | 2011-09-09 23:35:10 | zlib 1.2.5 | |
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73014202 | 2011-09-09 23:34:55 | zlib 1.2.4.5 | |
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67cc20d0 | 2011-09-09 23:32:36 | zlib 1.2.4-pre1 | |
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f6194ef3 | 2011-09-09 23:26:40 | zlib 1.2.3.4 | |
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b1c19ca6 | 2011-09-09 23:25:27 | zlib 1.2.3.1 | |
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9c3a5830 | 2011-09-09 23:24:52 | zlib 1.2.2.4 | |
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0484693e | 2011-09-09 23:24:33 | zlib 1.2.2.2 | |
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9811b53d | 2011-09-09 23:24:24 | zlib 1.2.2.1 | |
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7a695576 | 2011-09-09 23:23:45 | zlib 1.2.1.2 | |
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b97ec631 | 2011-09-09 23:23:01 | zlib 1.2.0.7 | |
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13a294f0 | 2011-09-09 23:21:57 | zlib 1.2.0.1 | |
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7c2a874e | 2011-09-09 23:21:47 | zlib 1.2.0 | |
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a383133c | 2011-09-09 23:20:42 | zlib 1.1.4 | |
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14763ac7 | 2011-09-09 23:20:29 | zlib 1.1.3 | |
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02b6cf57 | 2011-09-09 23:20:07 | zlib 1.1.1 | |
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965fe72a | 2011-09-09 23:19:55 | zlib 1.1.0 | |
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6759211a | 2011-09-09 23:18:57 | zlib 1.0.8 | |
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7850e4e4 | 2011-09-09 23:17:33 | zlib 1.0.7 | |
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ff11b0a6 | 2011-09-09 23:17:02 | zlib 1.0.4 | |
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e26a448e | 2011-09-09 23:15:17 | zlib 1.0.2 | |
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423eb403 | 2011-09-09 23:14:39 | zlib 1.0.1 | |
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8a2acbff | 2011-09-09 23:13:27 | zlib 1.0-pre | |
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56bcb184 | 2011-09-09 23:11:37 | zlib 0.99 | |
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25e53255 | 2011-09-09 23:10:21 | zlib 0.95 | |
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23c69f10 | 2011-09-09 23:09:18 | zlib 0.94 | |
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6b834a58 | 2011-09-09 23:08:28 | zlib 0.93 | |
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bdde4e09 | 2011-09-09 23:08:07 | zlib 0.92 | |
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64b2e892 | 2011-09-09 23:06:52 | zlib 0.9 | |
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4ca984fb | 2011-09-09 23:03:14 | zlib 0.8 | |
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913afb91 | 2011-09-09 22:52:17 | zlib 0.79 | |
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bcf78a20 | 2011-09-09 22:36:31 | zlib 0.71 |