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Overview
| Comment: | Fix another uninitialized Mem.xDel problem. (CVS 1672) |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: | cb4e242e83ba111c5da1f9662fda5a89 |
| User & Date: | drh 2004-06-22 22:54:23 |
Context
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2004-06-23
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| 00:23 | Add a comment to the output buffer allocation in sqlite3VdbeMemTranslate() (CVS 1673) check-in: e2f7f182 user: danielk1977 tags: trunk | |
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2004-06-22
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| 22:54 | Fix another uninitialized Mem.xDel problem. (CVS 1672) check-in: cb4e242e user: drh tags: trunk | |
| 22:04 | Be careful to initialize the Mem.xDel field to zero for static Mems. (CVS 1671) check-in: e17ea666 user: drh tags: trunk | |
Changes
Changes to src/vdbe.c.
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** ** Various scripts scan this source file in order to generate HTML ** documentation, headers files, or other derived files. The formatting ** of the code in this file is, therefore, important. See other comments ** in this file for details. If in doubt, do not deviate from existing ** commenting and indentation practices when changing or adding code. ** ** $Id: vdbe.c,v 1.387 2004/06/22 17:59:56 drh Exp $ */ #include "sqliteInt.h" #include "os.h" #include <ctype.h> #include "vdbeInt.h" /* ................................................................................ }else{ ctx.pVdbeFunc = (VdbeFunc*)pOp->p3; ctx.pFunc = ctx.pVdbeFunc->pFunc; } ctx.s.flags = MEM_Null; ctx.s.z = 0; ctx.isError = 0; ctx.isStep = 0; if( ctx.pFunc->needCollSeq ){ assert( pOp>p->aOp ); assert( pOp[-1].p3type==P3_COLLSEQ ); assert( pOp[-1].opcode==OP_CollSeq ); ctx.pColl = (CollSeq *)pOp[-1].p3; |
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** ** Various scripts scan this source file in order to generate HTML ** documentation, headers files, or other derived files. The formatting ** of the code in this file is, therefore, important. See other comments ** in this file for details. If in doubt, do not deviate from existing ** commenting and indentation practices when changing or adding code. ** ** $Id: vdbe.c,v 1.388 2004/06/22 22:54:23 drh Exp $ */ #include "sqliteInt.h" #include "os.h" #include <ctype.h> #include "vdbeInt.h" /* ................................................................................ }else{ ctx.pVdbeFunc = (VdbeFunc*)pOp->p3; ctx.pFunc = ctx.pVdbeFunc->pFunc; } ctx.s.flags = MEM_Null; ctx.s.z = 0; ctx.s.xDel = 0; ctx.isError = 0; ctx.isStep = 0; if( ctx.pFunc->needCollSeq ){ assert( pOp>p->aOp ); assert( pOp[-1].p3type==P3_COLLSEQ ); assert( pOp[-1].opcode==OP_CollSeq ); ctx.pColl = (CollSeq *)pOp[-1].p3; |
Changes to src/vdbemem.c.
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int x = pMem->flags & (MEM_Static|MEM_Dyn|MEM_Ephem|MEM_Short);
assert( x!=0 ); /* Strings must define a string subtype */
assert( (x & (x-1))==0 ); /* Only one string subtype can be defined */
assert( pMem->z!=0 ); /* Strings must have a value */
/* Mem.z points to Mem.zShort iff the subtype is MEM_Short */
assert( (pMem->flags & MEM_Short)==0 || pMem->z==pMem->zShort );
assert( (pMem->flags & MEM_Short)!=0 || pMem->z!=pMem->zShort );
if( (flags & MEM_Str) ){
assert( pMem->enc==SQLITE_UTF8 ||
pMem->enc==SQLITE_UTF16BE ||
pMem->enc==SQLITE_UTF16LE
);
/* If the string is UTF-8 encoded and nul terminated, then pMem->n
................................................................................
if( pMem->enc==SQLITE_UTF8 && (flags & MEM_Term) ){
assert( strlen(pMem->z)==pMem->n );
}
}
}else{
/* Cannot define a string subtype for non-string objects */
assert( (pMem->flags & (MEM_Static|MEM_Dyn|MEM_Ephem|MEM_Short))==0 );
}
/* MEM_Null excludes all other types */
assert( (pMem->flags&(MEM_Str|MEM_Int|MEM_Real|MEM_Blob))==0
|| (pMem->flags&MEM_Null)==0 );
}
#endif
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int x = pMem->flags & (MEM_Static|MEM_Dyn|MEM_Ephem|MEM_Short);
assert( x!=0 ); /* Strings must define a string subtype */
assert( (x & (x-1))==0 ); /* Only one string subtype can be defined */
assert( pMem->z!=0 ); /* Strings must have a value */
/* Mem.z points to Mem.zShort iff the subtype is MEM_Short */
assert( (pMem->flags & MEM_Short)==0 || pMem->z==pMem->zShort );
assert( (pMem->flags & MEM_Short)!=0 || pMem->z!=pMem->zShort );
/* No destructor unless there is MEM_Dyn */
assert( pMem->xDel==0 || (pMem->flags & MEM_Dyn)!=0 );
if( (flags & MEM_Str) ){
assert( pMem->enc==SQLITE_UTF8 ||
pMem->enc==SQLITE_UTF16BE ||
pMem->enc==SQLITE_UTF16LE
);
/* If the string is UTF-8 encoded and nul terminated, then pMem->n
................................................................................
if( pMem->enc==SQLITE_UTF8 && (flags & MEM_Term) ){
assert( strlen(pMem->z)==pMem->n );
}
}
}else{
/* Cannot define a string subtype for non-string objects */
assert( (pMem->flags & (MEM_Static|MEM_Dyn|MEM_Ephem|MEM_Short))==0 );
assert( pMem->xDel==0 );
}
/* MEM_Null excludes all other types */
assert( (pMem->flags&(MEM_Str|MEM_Int|MEM_Real|MEM_Blob))==0
|| (pMem->flags&MEM_Null)==0 );
}
#endif
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