Many hyperlinks are disabled.
Use anonymous login
to enable hyperlinks.
Overview
Comment: | Cherry-pick the change at [2d4505510032bf9] into the 3.6.1 branch. |
---|---|
Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | branch-3.6.1 |
Files: | files | file ages | folders |
SHA1: |
ecb1419e4b359e68d583b627ac40cff3 |
User & Date: | drh 2010-10-15 14:45:13.000 |
Context
2011-03-07
| ||
16:12 | Backport a fix from [6b0cabd017ed25] (version 3.6.16 - [2009-03-05]) to the 3.6.1 branch, a fix that prevents a null pointer deref if one of the column access routines such as sqlite3_column_int() is called with a NULL first parameter. (check-in: df3436405e user: drh tags: branch-3.6.1) | |
2010-10-15
| ||
14:45 | Cherry-pick the change at [2d4505510032bf9] into the 3.6.1 branch. (check-in: ecb1419e4b user: drh tags: branch-3.6.1) | |
2010-05-17
| ||
15:52 | An improvement to the SQLITE_FCNTL_SIZE_HINT change that invokes the hint less often and only when really needed. (check-in: a1d20ceb9c user: drh tags: branch-3.6.1) | |
Changes
Changes to src/vdbemem.c.
︙ | ︙ | |||
11 12 13 14 15 16 17 | ************************************************************************* ** ** This file contains code use to manipulate "Mem" structure. A "Mem" ** stores a single value in the VDBE. Mem is an opaque structure visible ** only within the VDBE. Interface routines refer to a Mem using the ** name sqlite_value ** | | | 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 | ************************************************************************* ** ** This file contains code use to manipulate "Mem" structure. A "Mem" ** stores a single value in the VDBE. Mem is an opaque structure visible ** only within the VDBE. Interface routines refer to a Mem using the ** name sqlite_value ** ** $Id: vdbemem.c,v 1.123 2008/09/16 12:06:08 danielk1977 Exp $ */ #include "sqliteInt.h" #include <ctype.h> #include "vdbeInt.h" /* ** Call sqlite3VdbeMemExpandBlob() on the supplied value (type Mem*) |
︙ | ︙ | |||
735 736 737 738 739 740 741 | if( pColl ){ if( pMem1->enc==pColl->enc ){ /* The strings are already in the correct encoding. Call the ** comparison function directly */ return pColl->xCmp(pColl->pUser,pMem1->n,pMem1->z,pMem2->n,pMem2->z); }else{ | < > | | > > > | | < | | < < < | | | 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 | if( pColl ){ if( pMem1->enc==pColl->enc ){ /* The strings are already in the correct encoding. Call the ** comparison function directly */ return pColl->xCmp(pColl->pUser,pMem1->n,pMem1->z,pMem2->n,pMem2->z); }else{ const void *v1, *v2; int n1, n2; Mem c1; Mem c2; memset(&c1, 0, sizeof(c1)); memset(&c2, 0, sizeof(c2)); sqlite3VdbeMemShallowCopy(&c1, pMem1, MEM_Ephem); sqlite3VdbeMemShallowCopy(&c2, pMem2, MEM_Ephem); v1 = sqlite3ValueText((sqlite3_value*)&c1, pColl->enc); n1 = v1==0 ? 0 : c1.n; v2 = sqlite3ValueText((sqlite3_value*)&c2, pColl->enc); n2 = v2==0 ? 0 : c2.n; rc = pColl->xCmp(pColl->pUser, n1, v1, n2, v2); sqlite3VdbeMemRelease(&c1); sqlite3VdbeMemRelease(&c2); return rc; } } /* If a NULL pointer was passed as the collate function, fall through ** to the blob case and use memcmp(). */ } |
︙ | ︙ |