lua/lstring.c, branch v5.4.9A mirror of https://github.com/lua/lua
https://git.lua4.win/lua/atom?h=v5.4.92023-12-21T16:37:51+00:00Bug: Buffer overflow in string concatenation2023-12-21T16:37:51+00:00Roberto Ierusalimschyroberto@inf.puc-rio.br2023-12-21T16:37:51+00:00urn:sha1:5853c37a83ec66ccb45094f9aeac23dfdbcde671
Even if the string fits in size_t, the whole size of the TString object
can overflow when we add the header.
Cannot use 'getshrstr' before setting 'shrlen'2023-08-25T18:55:14+00:00Roberto Ierusalimschyroberto@inf.puc-rio.br2023-08-25T18:55:14+00:00urn:sha1:07a9eab23ac073362f231ddc7215688cf221ff45More disciplined use of 'getstr' and 'tsslen'2023-08-17T18:59:28+00:00Roberto Ierusalimschyroberto@inf.puc-rio.br2023-08-17T18:59:28+00:00urn:sha1:9b4f39ab14fb2e55345c3d23537d129dac23b091
We may want to add other string variants in the future; this change
documents better where the code may need to handle those variants.
Broadening the use of branch hints2021-02-24T14:14:44+00:00Roberto Ierusalimschyroberto@inf.puc-rio.br2021-02-24T14:14:44+00:00urn:sha1:59c88f846d1dcd901a4420651aedf27816618923
More uses of macros 'likely'/'unlikely' (renamed to
'l_likely'/'l_unlikely'), both in range (extended to the
libraries) and in scope (extended to hooks, stack growth).
Hash always use all characters in a long string2020-10-12T15:29:09+00:00Roberto Ierusalimschyroberto@inf.puc-rio.br2020-10-12T13:02:37+00:00urn:sha1:9a89fb1c9dfeda4640780111f9e9437f08cfad88
Hashes for long strings are computed only when they are used as keys
in a table, not a too common case. And, in that case, it is to easy to
force collisions changing only the characters which are not part of the
hash.
Short strings always use all bytes in the hash2020-04-01T13:52:41+00:00Roberto Ierusalimschyroberto@inf.puc-rio.br2020-04-01T13:52:41+00:00urn:sha1:7288528a1e081d101a1bc19346a974088b6b8315
Collisions in short strings occurr just by their existence, when
internalizing them. (Collisions in long strings is caused/controlled
by the program, when adding them as keys to the same table.)
Clearer distinction between types and tags2020-01-31T14:09:53+00:00Roberto Ierusalimschyroberto@inf.puc-rio.br2020-01-31T14:09:53+00:00urn:sha1:46c3587a6feb28e1ee4a32aabe463b0ecb9e8f5e
LUA_T* represents only types; tags (types + Variants) are represented
by LUA_V* constants.
Details2019-06-03T14:36:42+00:00Roberto Ierusalimschyroberto@inf.puc-rio.br2019-06-03T14:36:42+00:00urn:sha1:2c68e66570206aa1496f9c76fcf2a1a0f550d692
Several small changes from feedback on 5.4 alhpa rc1 (warnings,
typos in the manual, and the like)
Removed extra information from RCS keyword strings2018-08-23T17:26:12+00:00Roberto Ierusalimschyroberto@inf.puc-rio.br2018-08-23T17:26:12+00:00urn:sha1:f99509581ee73c1c2dbddb3398e87c098771d31f
Version numbers and dates (mostly wrong) from RCS keyword strings
removed from all source files; only the file name are kept.
new macros 'likely'/'unlikely' with hints for jump predictions2018-05-30T14:25:52+00:00Roberto Ierusalimschyroberto@inf.puc-rio.br2018-05-30T14:25:52+00:00urn:sha1:34aa0c5bd7493b6e01983df28f04af46a3d99967
(used only in errors for now)