bahman/sqlite
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
31,731 Commits 1,672 Branches 385 Tags
master
Commit Graph

539 Commits

Author SHA1 Message Date
stephan
6af10b0efd Refactor the uint128 type check to consolidate duplicated rules. 
FossilOrigin-Name: 362ef7bc00eea180fb3458bd8887021aed54e321901483edc00ad6b23a33d8e5
 2026-04-27 06:48:07 +00:00
stephan
70d1e3e75e Feature detection fix for uint128 on RISCV 32-bit, reported in [forum:f8d1417ce8eb2f22|forum post 2026-04-26T11:41:01Z] and validated by the OP. 
FossilOrigin-Name: c4a2c20839ef75534d71d928a03ad276bdc488b0baa76c1505f48dc1ff0bcdd1
 2026-04-27 05:55:38 +00:00
drh
8cdc2abf07 Attempt to work around a bug in legacy Microsoft compilers. 
[forum:/forumpost/2026-04-10T06:33:11z|Forum post 2026-04-10T06:33:11z].

FossilOrigin-Name: 661e1413625f55c37e2cd4d785074576d355e125231bbc1dd0a511a2b02c8e3b
 2026-04-10 10:48:04 +00:00
drh
b060cecb2e Remove an unused variable in sqlite3Reindex(). Minor enhancements to the 
header comment on sqlite3AtoF().

FossilOrigin-Name: fbba900728d444f6a0b428197ebb41fe039b235e18caa2243c9f8f04fce42595
 2026-03-30 10:00:48 +00:00
drh
03f13d77a5 Avoid using unsigned 64-bit integer division on platforms that do not support 
it in hardware.

FossilOrigin-Name: 2197677491dfc5ec87b57bbf807776875248a250f80ce9a5ce94ae385bb1d2bc
 2026-03-29 19:06:36 +00:00
drh
445fbc61c8 The _umulh() intrinsic function is not available on 32-bit windows. So don't 
use it there.

FossilOrigin-Name: e75f30c7e66e725a2f3f46c7d4d69a2ff925e2de9a86c3a6ec38897545b43a58
 2026-03-29 10:32:25 +00:00
drh
00c6eca32c Enable the use of intrinsic high-precision multiplies on Windows ARM. 
Make the SQLITE_DISABLE_INTRINSIC option effective on high-precision
multiple subroutines, for testing purposes.

FossilOrigin-Name: efb6212de4ca998546329b06b43122f0fffa3759e4615ca3357ef9fa13606d44
 2026-03-27 16:09:10 +00:00
drh
d4af925e34 Enhance the return value from sqlite3AtoF() so that it reports if the input 
includes more than 19.25 significant digits.

FossilOrigin-Name: 1721c8da769816ca16104cd636299d84f682fc004938a50056b76b269e49e915
 2026-03-26 18:19:47 +00:00
drh
61d3bc8ddc Revamp the return code from sqlite3AtoF() for additional information and 
for small speed improvement and size reduction.

FossilOrigin-Name: f10a431eade20ecd4c4d501fc534e2dae6ab2fe67302ea7bb3cd6eba127848fc
 2026-03-26 16:33:03 +00:00
drh
f9a3b78561 Improvements to the sqlite3AtoF() interface. Add a test-control for 
direct testing of sqlite3AtoF().

FossilOrigin-Name: 97ee48b6ef65fb55633196282c9e75b3b0a3b81ba9755f63493a38e3f1a5610c
 2026-03-26 14:19:34 +00:00
drh
f855727e45 Back out the sqlite3_atof() API, for now. 
FossilOrigin-Name: 7568d264be3988df195401158d8d07105b8e9e018eccf98ac948219bee9388ac
 2026-03-26 12:09:37 +00:00
drh
3d58f022a8 Fix an off-by-one error that cause a loop to (harmlessly) run more times 
than necessary.  Performance optimization, not a bug fix.

FossilOrigin-Name: 58f4e058f1cbb798b8a48208c6310fd10ca9cd1fc7c550f3ed283cf38ae45c2f
 2026-03-25 21:23:23 +00:00
drh
0944b3efad Small size reduction and performance increase in sqlite3Atoi64(). 
FossilOrigin-Name: c818165fd709b813ab07788662bf69205ece2dcea41346609b3439950f900057
 2026-03-25 19:36:16 +00:00
drh
80b88b2482 Proposed new API routine: sqlite3_atof(). 
FossilOrigin-Name: db370f0f628895279a1c1db79ba7428cb4e31b56cafc191859c2f1a5a924435b
 2026-03-22 20:52:23 +00:00
drh
dfd31e158c Additional performance improvements in sqlite3AtoF(). Also update the 
header comments.

FossilOrigin-Name: 8c3a1b450d6d5778004b9fb0e92b4f3f90d3e06ff87276370d01a45b7d607d23
 2026-03-22 17:50:48 +00:00
drh
cc19c1dafd Further simplification and performance improvement 
FossilOrigin-Name: 6c3dc2430adef061b458b6d9159628bb8debfd4d63876d5d5e7493afb799d97f
 2026-03-22 02:51:18 +00:00
drh
99571bf3c3 Performance improvements in the floating-point number parser. 
FossilOrigin-Name: aea648f3668219a2539160eb68c77ddd06aa8eac235c1326fe7b1547288b11ee
 2026-03-22 02:26:38 +00:00
drh
915a55444b Use compiler intrinsics to improve the performance of 
sqlite3Multiply160().

FossilOrigin-Name: 3c64f31392328f51e205fde52f19cf70c193e90897ccb7e93c685bad4f342cac
 2026-03-19 13:40:40 +00:00
drh
08eb5e9e51 Continue enforcing the legacy declaration-before-statement C-language rule, 
since some downstream still uses it.

FossilOrigin-Name: 5c237f1f863a32cf229010d2024d0d1e76a07a4d8b9492b26503b959f1c32485
 2026-03-18 22:31:56 +00:00
drh
b302c4d39c Typo fix in sqlite3Multiply128(): The datatype should be *unsigned*. 
FossilOrigin-Name: b459f6ff63325f71d4056dad2ebb536e0d414c973f3c6e167e8f67e94e6f0e2d
 2026-03-17 11:19:16 +00:00
drh
b50ce08591 Include the float-point table generator utility in the tools directory. 
FossilOrigin-Name: 4ab10b251d870af8297b9e505452393f6000f83784c822ff128e7aec06f8c72f
 2026-03-17 09:45:47 +00:00
drh
e9018e5ff5 Reorder bounds checking in sqlite3Fp10Convert2() 
FossilOrigin-Name: 23ad656edb3a63e7e6602770e1f2c4a5ef1f3d41565e7f13408b5305619dfa3d
 2026-03-17 09:18:36 +00:00
drh
a6640846dd Improve accuracy of text→floating-point conversions by moving 
from 64-bit to 96-bit approximations to powers of ten.

FossilOrigin-Name: a19c0785dcfb9fb74963c45b161b12ac8f4379e2b990f6c5de0d7b959c5be98d
 2026-03-16 09:40:12 +00:00
drh
eac7cd634d Use the UINT64_C() macro rather than the LLU suffix on integer literals 
for portability to older Microsoft compilers.
[forum:/forumpost/0a9ffaff6fcdedb3|Forum thread 0a9ffaff6fcdedb3].

FossilOrigin-Name: 27be26566fdb4d01c44dc111f1c18c835797de0990d4fcc876e91edc216e9e93
 2026-03-07 22:37:28 +00:00
drh
83de60bd7b Simplified rounding logic in sqlite3Fp10Convert2(). 
FossilOrigin-Name: 8ac63ebc5c04ba555bbf0d878a70e25deba5fcc75ff44c464600b92c27e5dcb0
 2026-03-01 20:22:08 +00:00
drh
a000db9754 Code changes in sqlite3Fp10Convert2() for easier maintenance. Does not 
affect the generated machine code.

FossilOrigin-Name: 21c8fc7100e23b632b77934cbbafb98dfd3e6e73bab702446ef6345b378c9d36
 2026-02-28 20:22:10 +00:00
drh
7ac310d0c6 Improvements to power-of-ten computations used for text ↔ binary64 
conversions.

FossilOrigin-Name: 0780bce854b962fb2d4a1a19c55c9b5790a9669f26e1ff8b5f1f1733cfc647e0
 2026-02-27 22:59:46 +00:00
drh
afaf7ea2e4 Minor simplification to the text→binary64 conversion algorithm. 
FossilOrigin-Name: 6632d51f1673e9a6b6e26baebc7aaa1ae27024ad5db1baff6ee5fcf865099f43
 2026-02-27 20:37:03 +00:00
drh
7aba858597 Remove an unreachable branch. 
FossilOrigin-Name: 93f90eacc0c5b2ae0042ec525359298883f8473e24967208feef4029d9fa2d08
 2026-02-21 13:40:07 +00:00
drh
4428aa842c Increase the precision of double → text conversions that happen in 
sqlite3_column_text(), or sqlite3_value_text(), or in the CAST() operator,
or similar, so that round-tripping the value back to double results in
exactly the same value.

FossilOrigin-Name: ef0049e3ade304f64e1ab97e52e1e21379e4db461f3fa80dac8e544fb90d622f
 2026-02-21 10:57:02 +00:00
drh
24ef9fbb19 Further simplification, performance gain, and size reduction in 
sqlite3FpDecode().

FossilOrigin-Name: 5954f22ceb6b43ed160ec085cd86b66299d8aab3e349a41941a4f1c2eade7457
 2026-02-21 00:56:11 +00:00
drh
aec283385e Small performance increase and size reduction in sqlite3FpDecode() by using 
local variables instead of structure elements.

FossilOrigin-Name: b4c378bba582205aa676e45b21ffa17ad6199e2a017ec73cf41a0243f693b589
 2026-02-21 00:20:29 +00:00
drh
ac5ee556eb Inconsequential changes to floating-point conversion, amounting to mere 
code cleanup to aid comprehension.

FossilOrigin-Name: 6d9c29123b6b143b0f7c8f5d018f170c72edfc5b1a4d67edd45e5552def2af6c
 2026-02-20 20:43:25 +00:00
drh
20c65785cd Improved rounding of floating-point conversions in some corner cases. 
FossilOrigin-Name: 436dccd42650a6ab0a74459ae42fdb3e36d853f934324acc2bc961f87c001852
 2026-02-20 12:27:52 +00:00
drh
cac09127e1 Improvements to rounding behavior in the new floating-point conversion logic. 
FossilOrigin-Name: e540f6c370675ae043af8cdbb80f7eb17c08e50f7634e0b78f0b1dccf7bd4b18
 2026-02-19 12:59:42 +00:00
drh
31d4e56b29 Fix a harmless compiler warning from MSVC. 
FossilOrigin-Name: 12f3a6d0aaff8818c427d79e2b9394328625b3a60ccaa7b628d064084c65cfaf
 2026-02-17 12:23:12 +00:00
drh
0b5e944480 Faster conversion of integers to text, by converting two digits at a time. 
FossilOrigin-Name: 90300e02f0de45b57d53976cae72928b3e56532d90b8b8cdc988e14762777930
 2026-02-17 00:37:12 +00:00
drh
63338e3ba8 Simplifications to sqlite3AtoF(), resulting in slightly faster performance 
and slightly smaller size.

FossilOrigin-Name: 6b9ab641763bc1620a01beec71589506b3b0827bff1c6cd98a5d17c6070050b3
 2026-02-16 23:52:51 +00:00
drh
5c977eaa0a Refactor the sqlite3AtoF() routine so that it requires a zero-terminated 
UTF-8 input.  When the need arises to convert UTF16 or non-terminated
strings, wrapper functions are used.  Together, this makes the code slightly
smaller and faster.

FossilOrigin-Name: 67c7c72e9bdf04c920d77006538a202c923fa74b47c81dc3014c2929dac7277d
 2026-02-16 16:56:59 +00:00
drh
adbb756155 Avoid the big power-of-ten lookup table. 
FossilOrigin-Name: 245ac7d9ec61e14fcef13a731e290fc5e8979efef6f4345f875eab9b882b0713
 2026-02-15 18:41:29 +00:00
drh
658908a32f Fix to [9d3a12d3926d55ef] to force the static const string literal to 
have two-byte alignment.  Necessary to get that patch to work in Mac-ARM.

FossilOrigin-Name: a80c847169f307a4d2e524b6732ea557bf7f312f1a319d6c6c2e81adb0907596
 2026-02-14 22:04:53 +00:00
drh
b3b2695d4b Add the "LLU" suffix to 64-bit integer constants, for portability to older 
compilers.

FossilOrigin-Name: 4bf08110662c4b8db9ee90ce34271890a62a469166ea292f7f782b84236531d4
 2026-02-14 21:47:08 +00:00
drh
775e4b7073 Fix to the generic version of the 128-bit multiple subroutine. 
FossilOrigin-Name: 9c3d09ee75beb26447161c0bf5ea252520a6ec051774f1a4e9f18204281d504f
 2026-02-14 21:31:31 +00:00
drh
4bee65dcb9 Another minor performance refinement. 
FossilOrigin-Name: 9d3a12d3926d55efffdc84bff342bd1dbccd08426104aeb2d339b064bf6f02f4
 2026-02-14 20:48:58 +00:00
drh
4d0611c1eb Minor corrections. 
FossilOrigin-Name: 93fdee20021b8cc2a113ea042fedbccd8b53b6aceeeb34c0810e6d3a5f106f07
 2026-02-14 19:42:55 +00:00
drh
10fb1e3077 Improved comment. No code changes. 
FossilOrigin-Name: c5a4da1bf7af8f8ec4b3273f88b09c01ce90986c8a5ce3d03319bd094706c411
 2026-02-14 19:36:41 +00:00
drh
db84cdb747 Use a precomputed table of 696 powers of 10 to improve the performance 
of floating-point to decimal and decimal to floating-point conversions.

FossilOrigin-Name: 64d9b7becf2da8927024adda278e837a46837e46af3cff51bd54a183d1716750
 2026-02-14 17:58:46 +00:00
drh
643fb6cf4b Minor performance enhancement to floating-point rendering. 
FossilOrigin-Name: 38d8c0d8a0b0e9990ba7bdcce979f2824ffee22a083cb788a75917628b1eb559
 2026-02-11 19:42:46 +00:00
stephan
129203bce3 Internal doc typo fixes reported in [forum:01d15f21b6|forum post 01d15f21b6]. 
FossilOrigin-Name: d6514c20ff583ccc4fb3a526fb8f86a563224f513ee10bb39a978046bd952726
 2025-02-27 03:23:33 +00:00
drh
a0d35d44e4 Convert some expensive NEVER() and ASSERT() macros into assert()s. 
FossilOrigin-Name: 4aad891802d9d87f1ff3cbbf4bc70fa242c6782088189a2bd5d6f8863f552d29
 2025-02-10 11:16:37 +00:00