Commit Graph

18 Commits

Author SHA1 Message Date
Yann Collet
ff773bfcde zeroise freq table with memset()
improves decoding speed by ~5% in github_users sample set
2018-06-26 17:24:41 -07:00
Nick Terrell
f2d0924b87 Variable declarations 2018-05-23 14:58:58 -07:00
Nick Terrell
c92dd11940 Error if reported size is too large in edge case 2018-05-23 14:47:20 -07:00
Nick Terrell
a97e9a627a [zstd] Fix decompression edge case
This edge case is only possible with the new optimal encoding selector,
since before zstd would always choose `set_basic` for small numbers of
sequences.

Fix `FSE_readNCount()` to support buffers < 4 bytes.

Credit to OSS-Fuzz
2018-05-23 12:16:00 -07:00
Yann Collet
1a26ec6e8d opt: init statistics from dictionary
instead of starting from fake "default" statistics.
2018-05-10 17:59:12 -07:00
Yann Collet
1f2c95c5f3 minor code refactor in HUF module 2017-03-05 21:07:20 -08:00
Yann Collet
4596037042 updated fse version
feature minor refactoring (removing FSE_abs())
also : fix a few minor issues recently introduced in examples
2017-02-15 12:00:03 -08:00
Yann Collet
b89af20353 reduced table sizes for HUF_readDTableX4 2016-12-01 18:24:59 -08:00
Yann Collet
766431909f introduced FSE_decompress_wksp(), to use less stack space 2016-11-30 12:36:45 -08:00
Nick Terrell
d760529a05 Fix stack buffer overrun when weightTotal == 0
If `weightTotal == 0`, then `BIT_highbit32(weightTotal)` is
undefined behavior in the case that it calls `__builtin_clz()`.
If `tableLog == HUF_TABLELOG_ABSOLUTEMAX` then we will access one
byte beyond the end of the buffer.
2016-10-19 11:39:11 -07:00
Nick Terrell
ccfcc643da Check if dict is empty before reading first byte 2016-10-17 11:46:03 -07:00
Yann Collet
cbc5e9dc19 fixes oob read 2016-07-24 18:02:04 +02:00
Yann Collet
38b75ddeb2 removed special case all-1 huffman distribution 2016-07-24 15:35:59 +02:00
Yann Collet
7ed5e33b89 minor comment changes 2016-07-24 14:26:11 +02:00
Yann Collet
d5c5a77990 minor comments clarifications 2016-07-20 13:35:14 +02:00
Yann Collet
a91ca620cf removed HUF_readStats() from public space 2016-06-05 01:33:55 +02:00
Yann Collet
d0e2cd15cb Merged fse_static into fse.h . Now requires FSE_STATIC_LINKING_ONLY macro. 2016-06-05 00:58:01 +02:00
inikep
63ecd747de added common/entropy_common.c 2016-05-13 11:27:56 +02:00