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27,211 Commits 1,607 Branches 185 Tags
8dd4697e48c04a405c9c8da4a68b948e45b1f159
Commit Graph

469 Commits

Author SHA1 Message Date
drh
12f84e5ee5 Fix a harmless compiler warning from Xcode 9.1. 
FossilOrigin-Name: 66d98310b91c69fd01c6a9a958ef1eabda14ec6cd0e4b6612f877f2dfe486c54
 2017-11-06 09:34:45 +00:00
drh
84d4f1a328 Improved resolution of large integer values in "CAST(x AS NUMERIC)". 
FossilOrigin-Name: 7f2bd4ff45fba29528c18cac6da983bd9b164303525d3965056f5b40f85dc83f
 2017-09-20 10:47:10 +00:00
drh
3ba18adde5 Fix an error in [b22cdd67] that can cause a negative infinity to be (rarely) 
reported as a positive infinity.

FossilOrigin-Name: 9780b23ca375de6a542516fbc03eb39d5a393ca577718fda231d0d0ccf3b1c7e
 2017-09-12 15:05:34 +00:00
drh
b9772e7fe8 Changes to (hopefully) get the build working with recent Intel compilers. 
FossilOrigin-Name: b22cdd6734ecda2b2b9749668f353abc2660f192d6a40c5d266309d30e25695e
 2017-09-12 13:27:43 +00:00
drh
ceb4b1dbdd Use the __builtin_clzll() function of gcc to improve the performance and 
reduce the size of the sqlite3LogEst() routine.

FossilOrigin-Name: a42a438cbbd721765ca55e71c464552dbaa494050cf472593599b8c7f0249516
 2017-08-17 20:53:07 +00:00
drh
313e6fd222 Fix the sqlite3GetInt32() function so that it correctly returns 0 on a 
zero-length input string.

FossilOrigin-Name: 05eba9e3a5f9bb2a40af1dacd885e1915fbcd20b9af4cf0eed79ac16dbeba31b
 2017-05-03 17:44:28 +00:00
drh
dc5ece86ae Remove the CLANG_VERSION macro, since we have learned that version numbers in 
clang are "marketing" and are inconsistent and unreliable.  Builds using clang
will still use the GCC_VERSION macro since clang works hard to be gcc
compatible.

FossilOrigin-Name: 810d29320b853b3a01aa50d8f2a0bceacf79e0aa
 2017-02-15 15:09:09 +00:00
drh
a39284bfa8 Cleanup the usage of the SQLITE_DISABLE_INTRINSIC compile-time option. 
Remove the SQLITE_RUNTIME_BYTEORDER compile-time option.  Use
-DSQLITE_BYTEORDER=0 instead.  Fix a bug in R-Tree that occurs when compiling
on a known little-endian machine without the use of intrinsic byteswapping
functions.

FossilOrigin-Name: 798fb9d70d2e5f95e64237b04d6692360133381a
 2017-02-09 17:12:22 +00:00
drh
b94f2eccc1 Use the CLANG_VERSION macro to control clang-specific features. 
FossilOrigin-Name: f8ebeec211483503e135104ef977b3c384a1d789
 2017-01-03 20:01:24 +00:00
drh
4a47761e0d Make use of the __buildin_OP_overflow() functions from GCC when doing 
64-bit signed integer arithmetic.

FossilOrigin-Name: 82cbebb8ee4484f13e5f48d305e20e73063f273e
 2017-01-03 17:33:43 +00:00
drh
ce1bbe51b5 Add check to prevent a VList from growing after pointers to labels have been 
taken.

FossilOrigin-Name: aa23d7eaf69f5ecbf9500b2353846094cae41e6c
 2016-12-23 13:52:45 +00:00
drh
9bf755cc44 Use the VList object to replace Parse.azVar for tracking the mapping between 
SQL parameter names and parameter numbers.  There is a performance
improvement, though there are still a few hiccups in the current code.

FossilOrigin-Name: 68ecafa1425a41358c88f41efea3262f1b4490f2
 2016-12-23 03:59:31 +00:00
drh
d12602a9c5 Rename the SQLITE_OMIT_BUILTIN_TEST compile-time option to SQLITE_UNTESTABLE. 
FossilOrigin-Name: f360818737e73ee4f944685a547abc8f14f47819
 2016-12-07 15:49:02 +00:00
drh
09952c6490 Improved implementation of 64-bit signed integer multiply that correctly 
detects overflow (and promotes to floating-point) in some corner cases.
Fix for ticket [1ec41379c9c1e400]

FossilOrigin-Name: db3ebd7c52cfc5fcc7be00f52e9d7c84719f7b93
 2016-09-20 22:04:05 +00:00
drh
75ab50ce8f Use comments to mark several branches as optimizations. No changes to code. 
FossilOrigin-Name: 33e627472780b872716c504f2d585cc057c390a5
 2016-04-28 14:15:12 +00:00
drh
10c0a2a7c9 Remove an unnecessary conditional from the sqlite3DecOrHexToI64() routine. 
FossilOrigin-Name: fcf85bfe50b254e825ee63a4cd0aa0b333b06eed
 2016-04-28 03:52:18 +00:00
drh
609d5846ba Change the sqlite3Atoi64() routine so that it returns failure if not all of 
the input characters are consumed, even if it consumed all characters up to
the first 0x00.  This has no impact on external APIs as far as I can tell.

FossilOrigin-Name: 46d4ffff3bd33d7e901e76cfac1cbde38d4f61d0
 2016-04-28 00:32:16 +00:00
drh
ad975d539e More simplification of the sqlite3AtoF() routine. Add special comments 
to indicate branches that are for optimization purposes only and that give
the correct answer even if always or never taken.

FossilOrigin-Name: 0065fe97cb8e5076acae1bf1560fd2f69dab9014
 2016-04-27 15:24:13 +00:00
drh
c6daa01c05 Remove still more unnecessary branches from sqlite3AtoF(). 
FossilOrigin-Name: 3adfe9f3e6ce7cc09fcb570d9b65e830a96cac15
 2016-04-27 02:35:03 +00:00
drh
15af62acff Further simplifications to sqlite3AtoF() to remove unneeded branches. 
FossilOrigin-Name: dd69e53cb077873171af5312c633ca185595bf31
 2016-04-26 23:14:45 +00:00
drh
e5f06fdc87 Remove an unnecessary line from the sqlite3AtoF() routine. 
FossilOrigin-Name: a9d007494cfe30a26dca5352655dc7702351476e
 2016-04-26 21:02:53 +00:00
drh
244b9d6ec6 Performance optimization to sqlite3Dequote() and its callers. 
FossilOrigin-Name: 9efe2265b1e70172778d333c5b9d9a76095427ab
 2016-04-11 19:01:08 +00:00
drh
40dc357a01 Remove an unnecessary branch in the sqlite3LogEstToInt() routine. 
FossilOrigin-Name: da81d7afeb0566a09a505ba5fce901e991e4a029
 2016-04-05 23:39:53 +00:00
drh
d7564865ad The sqlite3_column_decltype() routine should return NULL, not an empty string, 
if the column has no declared type.

FossilOrigin-Name: 605eba4a756e7185119088e2242f82691d078b01
 2016-03-22 20:05:09 +00:00
drh
80fbee092e Improved comments. No logical changes to code. 
FossilOrigin-Name: a6b6c6c466f3feb257b4fc08ef6b9a27a68ca073
 2016-03-21 11:57:13 +00:00
drh
8d2f41ccd2 Do a better job of capturing all system errno values regardless of when 
they occur.

FossilOrigin-Name: 7d49998d571d841a6d1b55f5f9889e613daaab2a
 2016-03-21 11:38:01 +00:00
drh
1b9f2141a7 Experimental implementation of the sqlite3_system_errno() interface. 
FossilOrigin-Name: 6782c87b3722fbd09684a5b1e5df05247956f1c6
 2016-03-17 16:01:23 +00:00
drh
ecdf20d3a4 Use #ifdefs to remove code that is unreachable in some configurations, replacing 
it with an assert().

FossilOrigin-Name: f96ec84d605fd73c323344a753acf35b76307af9
 2016-03-10 14:28:24 +00:00
drh
14bfd99143 Fix an incorrect #ifdef on sqlite3LogEstToInt(). 
FossilOrigin-Name: dca7b23354a6b08c926b6ed3f7345d942a409862
 2016-03-05 14:00:09 +00:00
drh
6f17c09fcf Fix an assert() in sqlite3VarintLen(), even though it is impossible to hit 
in SQLite due to the way sqlite3VarintLen() is used.

FossilOrigin-Name: 251424c5869f43012fc1e1a545de362036b883db
 2016-03-04 21:18:09 +00:00
drh
94eaafa9ce Reduce the amount of heap required to store many schemas by storing each 
column datatype appended to the column name, rather than as a separate
allocation.

FossilOrigin-Name: 842b21162713bb141b845b01c136457a31af4ab0
 2016-02-29 15:53:11 +00:00
drh
d566c95179 Change the "PRAGMA stats" command to report size values in LogEst units. 
The eliminates the need for sqlite3LogEstToInt() unless non-standard
compile-time options are used, so leave it out except in those cases.

FossilOrigin-Name: 832c237fcbe83dd4f5a18a06acb0aeb7e2b9e712
 2016-02-25 21:19:03 +00:00
drh
469753d949 Add an SQLITE_DISABLE_INTRINSIC #ifdef to the sqlite3Put4Byte() function. 
FossilOrigin-Name: ba9c6827d0890aaed9168c221fefbdbe89f4f9d3
 2016-02-19 13:20:02 +00:00
drh
80738d9c3e Improvements to the application-defined function mechanism so that it is 
more compact and runs faster, especially when the application defines
thousands of new SQL functions.

FossilOrigin-Name: 3201fbcc5105d23132e6b8b7ac825e66af4f8a39
 2016-02-15 00:34:16 +00:00
drh
575fad6500 Add the slightly faster sqlite3DbMallocRawNN(db,n) routine for the majority 
cases where db is guaranteed to be not NULL.

FossilOrigin-Name: 0a802e96ab06e2643834b83671fa8353da1a348d
 2016-02-05 13:38:36 +00:00
drh
40aced5c65 Add the sqlite3TokenInit() utility function. 
FossilOrigin-Name: 7323175337b7ba85ac932ca892b28860f6a5b688
 2016-01-22 17:48:09 +00:00
drh
62aaa6ca88 Fix over-length source code lines. No logic changes. 
FossilOrigin-Name: 198d191b2f5ef7d63ac0093c701955c9052fd734
 2015-11-21 17:27:42 +00:00
drh
59a5364cf9 Performance improvement in sqlite3VarintLen(). 
FossilOrigin-Name: adf9fefb00ae1dbb07a921c6796cb0a9505c6d19
 2015-09-01 22:29:07 +00:00
mistachkin
60e0807801 Add SQLITE_DISABLE_INTRINSIC define to disable use of intrinsic functions (e.g. for certain older compilers and/or platforms). 
FossilOrigin-Name: f0075d735a76ce326619b6ba7f0d556e492f1c41
 2015-07-29 21:47:39 +00:00
mistachkin
f156c9b684 Enable use of the __builtin_bswap32() only with GCC 4.3 and higher. 
FossilOrigin-Name: 030f60a7ba171650ce8c0ac32dc166eab80aca32
 2015-07-03 17:54:49 +00:00
mistachkin
647ca46fc5 Make use of the _byteswap_ushort() and _byteswap_ulong() compiler intrinsics for MSVC, when available. 
FossilOrigin-Name: fe144dd73f7097a17c24c7812c2a1cc40466e6da
 2015-06-30 17:28:40 +00:00
drh
329428e208 Remove the use of htonl() in the previous check-in due to linkage issues. 
Add the get2byteAligned() macro and use it for access to the cell offsets
on btree pages for about a 1% performance gain.

FossilOrigin-Name: 79ff36b7170c9e7e7a9935c8b9d1665867771087
 2015-06-30 13:28:18 +00:00
drh
5372e4d4f9 Make use of htonl() and <nowiki>__builtin_bswap32()</nowiki> for faster 
implementations of sqlite3Get4byte() and sqlite3Put4byte().

FossilOrigin-Name: bc27ebd7f73e9fc8e00da6ec82632e439fcce812
 2015-06-30 12:47:09 +00:00
drh
1116bf1359 Implement sqlite3Strlen30() using strlen() from the C library. 
FossilOrigin-Name: 8001aa52bd12f900092387fe3571463e89efd977
 2015-06-30 03:18:33 +00:00
drh
935f2e7074 Disregard leading zeros when converting strings to 32-bit integers. 
FossilOrigin-Name: 691cc201e135a01c4cc4057be7e5d99285ab392d
 2015-04-18 04:45:00 +00:00
drh
0ede9ebec7 Improvements to compile-time-option hygiene. Use "#if OPTION" instead of 
"#ifdef OPTION" in cases where that makes sense, so that -DOPTION=0 will work.
Add the "Have-Not" configuration in releasetest.tcl which disables all of
the "HAVE_component" compile-time options.

FossilOrigin-Name: 9e92a5ed5aaba20461ed4ce8359d6e34e7773d68
 2015-01-10 16:49:23 +00:00
drh
9ca95730e3 Add the SQLITE_ENABLE_API_ARMOR compile-time option. This is a work in 
progress and is not yet completely functional.

FossilOrigin-Name: c297a84bc678f81ffc0aa9139ab73f0ca87c1971
 2014-10-24 00:35:58 +00:00
peter.d.reid
60ec914c74 Fix typos in comments. No code changes. 
FossilOrigin-Name: e62aab5e9290503869e1f4d5e0fefd2b4dee0a69
 2014-09-06 16:39:46 +00:00
drh
2f2b2b8580 Performance enhancement in sqlite3PutVarint(). 
FossilOrigin-Name: a929be551924144c9bc7aab608404d59e479abb5
 2014-08-22 18:48:25 +00:00
drh
13f40da31d Split the sqlite3Error() routine into sqlite3Error() and 
sqlite3ErrorWithMsg(), for a slight size reduction and performance increase.

FossilOrigin-Name: cf561d1f0bb60b3d638632d20bd686dda4fa4a04
 2014-08-22 18:00:11 +00:00