SQLite

Check-in [0064a8c77b]
Login

Many hyperlinks are disabled.
Use anonymous login to enable hyperlinks.

Overview
Comment:Add the SQLITE_BITMASK_TYPE compile-time option.
Downloads: Tarball | ZIP archive
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA1: 0064a8c77b2b048c71277d1cfd1ba3975b513b70
User & Date: drh 2016-02-23 16:28:34.108
Context
2016-02-24
16:14
Fix a problem with handling identifiers that start with "x" if SQLITE_OMIT_BLOB_LITERAL is defined. (check-in: b65217c69c user: dan tags: trunk)
15:43
Identify indexes that completely cover their table. (Closed-Leaf check-in: 71d488b599 user: drh tags: covering-index)
2016-02-23
16:28
Add the SQLITE_BITMASK_TYPE compile-time option. (check-in: 0064a8c77b user: drh tags: trunk)
2016-02-22
23:44
Remove code not needed now that synchronous=OFF database files no longer trigger the use of a master journal. (check-in: aa9f4c622a user: drh tags: trunk)
Changes
Unified Diff Ignore Whitespace Patch
Changes to src/sqliteInt.h.
︙︙
2334
2335
2336
2337
2338
2339
2340



2341

2342
2343
2344
2345
2346
2347
2348

/*
** The bitmask datatype defined below is used for various optimizations.
**
** Changing this from a 64-bit to a 32-bit type limits the number of
** tables in a join to 32 instead of 64.  But it also reduces the size
** of the library by 738 bytes on ix86.
*/



typedef u64 Bitmask;


/*
** The number of bits in a Bitmask.  "BMS" means "BitMask Size".
*/
#define BMS  ((int)(sizeof(Bitmask)*8))

/*








>
>
>
|
>








2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352

/*
** The bitmask datatype defined below is used for various optimizations.
**
** Changing this from a 64-bit to a 32-bit type limits the number of
** tables in a join to 32 instead of 64.  But it also reduces the size
** of the library by 738 bytes on ix86.
*/
#ifdef SQLITE_BITMASK_TYPE
  typedef SQLITE_BITMASK_TYPE Bitmask;
#else
  typedef u64 Bitmask;
#endif

/*
** The number of bits in a Bitmask.  "BMS" means "BitMask Size".
*/
#define BMS  ((int)(sizeof(Bitmask)*8))

/*
︙︙