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Overview
| Comment: | Fix a possible (and probably harmless) uninitialized variable in STAT3/4. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
33ad4f91477907b7b3e5808c7ba11aac |
| User & Date: | drh 2013-12-03 19:16:06 |
Context
|
2013-12-03
| ||
| 19:49 | Remove a branch in STAT4 logic that is no longer reachable after the previous change. (check-in: eca7d3f1 user: drh tags: trunk) | |
| 19:16 | Fix a possible (and probably harmless) uninitialized variable in STAT3/4. (check-in: 33ad4f91 user: drh tags: trunk) | |
| 18:26 | Fix an alignment problem in the stat3/stat4 code affecting 32-bit platforms. (check-in: 14f9bc79 user: dan tags: trunk) | |
Changes
Changes to src/vdbemem.c.
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/* Skip over any TK_COLLATE nodes */
pExpr = sqlite3ExprSkipCollate(pExpr);
if( !pExpr ){
pVal = valueNew(db, &alloc);
if( pVal ){
sqlite3VdbeMemSetNull((Mem*)pVal);
*pbOk = 1;
}
}else if( pExpr->op==TK_VARIABLE
|| NEVER(pExpr->op==TK_REGISTER && pExpr->op2==TK_VARIABLE)
){
Vdbe *v;
int iBindVar = pExpr->iColumn;
sqlite3VdbeSetVarmask(pParse->pVdbe, iBindVar);
................................................................................
pVal = valueNew(db, &alloc);
if( pVal ){
rc = sqlite3VdbeMemCopy((Mem*)pVal, &v->aVar[iBindVar-1]);
if( rc==SQLITE_OK ){
sqlite3ValueApplyAffinity(pVal, affinity, ENC(db));
}
pVal->db = pParse->db;
*pbOk = 1;
sqlite3VdbeMemStoreType((Mem*)pVal);
}
}else{
*pbOk = 0;
}
}else{
rc = valueFromExpr(db, pExpr, ENC(db), affinity, &pVal, &alloc);
*pbOk = (pVal!=0);
}
assert( pVal==0 || pVal->db==db );
return rc;
}
/*
** Unless it is NULL, the argument must be an UnpackedRecord object returned
|
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/* Skip over any TK_COLLATE nodes */
pExpr = sqlite3ExprSkipCollate(pExpr);
if( !pExpr ){
pVal = valueNew(db, &alloc);
if( pVal ){
sqlite3VdbeMemSetNull((Mem*)pVal);
}
}else if( pExpr->op==TK_VARIABLE
|| NEVER(pExpr->op==TK_REGISTER && pExpr->op2==TK_VARIABLE)
){
Vdbe *v;
int iBindVar = pExpr->iColumn;
sqlite3VdbeSetVarmask(pParse->pVdbe, iBindVar);
................................................................................
pVal = valueNew(db, &alloc);
if( pVal ){
rc = sqlite3VdbeMemCopy((Mem*)pVal, &v->aVar[iBindVar-1]);
if( rc==SQLITE_OK ){
sqlite3ValueApplyAffinity(pVal, affinity, ENC(db));
}
pVal->db = pParse->db;
sqlite3VdbeMemStoreType((Mem*)pVal);
}
}
}else{
rc = valueFromExpr(db, pExpr, ENC(db), affinity, &pVal, &alloc);
}
*pbOk = (pVal!=0);
assert( pVal==0 || pVal->db==db );
return rc;
}
/*
** Unless it is NULL, the argument must be an UnpackedRecord object returned
|