lua/lstrlib.c, branch v5.5.1A mirror of https://github.com/lua/lua
https://git.lua4.win/lua/atom?h=v5.5.12026-04-01T18:01:58+00:00Bug: wrong initialization in result from 'gmatch'2026-04-01T18:01:58+00:00Roberto Ierusalimschyroberto@inf.puc-rio.br2026-04-01T18:01:58+00:00urn:sha1:efddc2309c5ff8a1842bea8a9c0d7d4a5d6e1e60
Function returned by 'string.gmatch' can be left in an inconsistent
state after an error.
Special case for 'string.rep' over an empty string2026-01-04T19:39:22+00:00Roberto Iroberto@inf.puc-rio.br2026-01-04T19:39:22+00:00urn:sha1:5cfc725a8b61a6f96c7324f60ac26739315095baBUG: Possible overflow in 'string.packsize'2026-01-04T19:31:17+00:00Roberto Iroberto@inf.puc-rio.br2026-01-04T19:31:17+00:00urn:sha1:45c7ae5b1b05069543fe1710454c651350bc1c42
'string.packsize' can overflow result in 32-bit machines using 64-bit
integers, as LUA_MAXINTEGER may not fit into size_t.
Details2025-12-23T17:44:06+00:00Roberto Iroberto@inf.puc-rio.br2025-12-23T17:44:06+00:00urn:sha1:578ae5745cecee56d48795cd4ae1eaf13618715c
typo in comment + formatting + logical 'and' was written as a bitwise
operation (makes code more fragile)
Small change in 'trymt'2025-10-18T13:34:42+00:00Roberto Iroberto@inf.puc-rio.br2025-10-18T13:34:42+00:00urn:sha1:fca974486d12aa29bb6d731fdb5b25055157ece8
Operation name can be diferent from metamethod name.
Fix in string.rep2025-07-23T21:12:53+00:00Roberto Ierusalimschyroberto@inf.puc-rio.br2025-07-23T21:12:53+00:00urn:sha1:e3716ee161bb5416b5eb846eff6039d61954cfbd
The cast of n (number of repetitions) to size_t may truncate its value,
causing a buffer overflow later. Better to check the buffer size
using lua_Integer, as all string lengths must fit in a lua_Integer and
n already is a lua_Integer. If everything fits in MAX_SIZE, then we can
safely convert n to size_t and compute the buffer size as a size_t.
As a corner case, n can be larger than size_t if the strings being
repeated have length zero, but in this case it will be multiplied by
zero, so an overflow in the cast is irrelevant.
Added missing casts from lua_Unsigned to size_t2025-07-01T19:07:03+00:00Roberto Ierusalimschyroberto@inf.puc-rio.br2025-07-01T19:07:03+00:00urn:sha1:03bf7fdd4f3a588cd7ff0a8c51ed68c596d3d575
size_t can be smaller than lua_Usigned.
In gen. GC, some gray objects stay in gray lists2025-04-15T20:00:30+00:00Roberto Ierusalimschyroberto@inf.puc-rio.br2025-04-15T20:00:30+00:00urn:sha1:3dbb1a4b894c0744a331d4319d8d1704dc4ad943
In generational collection, objects marked as touched1 stay in gray
lists between collections. This commit fixes a bug introduced in
commit 808976bb59.
'-Wconversion' extended to all options of Lua numbers2024-07-27T18:13:21+00:00Roberto Ierusalimschyroberto@inf.puc-rio.br2024-07-27T18:13:21+00:00urn:sha1:f2206b2abe848f65956fa48da338c2bfac599e4aAdded gcc option '-Wconversion'2024-07-27T16:32:59+00:00Roberto Ierusalimschyroberto@inf.puc-rio.br2024-07-27T16:32:59+00:00urn:sha1:0acd55898d0aaae8dbc14c8a1bc1e3bdffc8701b
No warnings for standard numerical types. Still pending alternative
numerical types.