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Overview
Comment: | Very small size reduction and performance increase in sqlite3BitvecTest(). |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA1: |
9b3a7281bd45994edf813a687e4b7a07 |
User & Date: | drh 2015-06-29 03:28:43.213 |
Context
2015-06-29
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04:21 | Add the new PGHDR_CLEAN bit to PgHdr.flags in pcache.c. This bit is always the opposite of PGHDR_DIRTY. Use the extra bit to avoid a comparison for a small performance boost. (check-in: 8619fc346d user: drh tags: trunk) | |
03:28 | Very small size reduction and performance increase in sqlite3BitvecTest(). (check-in: 9b3a7281bd user: drh tags: trunk) | |
00:52 | Move an assert() and testcase() into their correct position within getAndInitPage(). (check-in: 18115164e1 user: drh tags: trunk) | |
Changes
Changes to src/bitvec.c.
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124 125 126 127 128 129 130 | /* ** Check to see if the i-th bit is set. Return true or false. ** If p is NULL (if the bitmap has not been created) or if ** i is out of range, then return false. */ int sqlite3BitvecTest(Bitvec *p, u32 i){ if( p==0 ) return 0; | < > | 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 | /* ** Check to see if the i-th bit is set. Return true or false. ** If p is NULL (if the bitmap has not been created) or if ** i is out of range, then return false. */ int sqlite3BitvecTest(Bitvec *p, u32 i){ if( p==0 ) return 0; i--; if( i>=p->iSize ) return 0; while( p->iDivisor ){ u32 bin = i/p->iDivisor; i = i%p->iDivisor; p = p->u.apSub[bin]; if (!p) { return 0; } |
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