contrib/sqlite3/sqlite3.c

23891 #define MEM_Null      0x0001   /* Value is NULL (or a pointer) */  macro
23933   (((X)->flags&MEM_TypeMask)==(MEM_Null|MEM_Zero) \
83884   if( p->flags & MEM_Null ){
83901       assert( (p->flags & ~(MEM_Null|MEM_Term|MEM_Subtype|MEM_FromBind
84149   pMem->flags &= (MEM_Null|MEM_Int|MEM_Real|MEM_IntReal);
84336   assert( (pMem->flags & MEM_Null)!=0 || pFunc==pMem->u.pDef );
84340   t.flags = MEM_Null;
84366   assert( (pAccum->flags & MEM_Null)!=0 || pFunc==pAccum->u.pDef );
84401   p->flags = MEM_Null;
84518   if( pMem->flags & MEM_Null ) return ifNull;
84622   testcase( pMem->flags & MEM_Null );
84623   if( (pMem->flags & (MEM_Int|MEM_Real|MEM_IntReal|MEM_Null))==0 ){
84638   assert( (pMem->flags & (MEM_Int|MEM_Real|MEM_IntReal|MEM_Null))!=0 );
84651   if( pMem->flags & MEM_Null ) return SQLITE_OK;
84721     pMem->flags = MEM_Null;
84802   assert( pMem->flags==MEM_Null );
84806   pMem->flags = MEM_Null|MEM_Dyn|MEM_Subtype|MEM_Term;
84971   pFrom->flags = MEM_Null;
85114   pMem->flags = MEM_Null;
85167   assert( (pVal->flags & (MEM_Null))==0 );
85214   if( pVal->flags&MEM_Null ){
85244     p->flags = MEM_Null;
85292             pRec->aMem[i].flags = MEM_Null;
85876   assert( (p->flags & MEM_Null)==0 || (p->flags & (MEM_Str|MEM_Blob))==0 );
85890   if( p->flags & MEM_Null ) return 0;
87867       }else if( pMem->flags & MEM_Null ){
88629     initMemArray(p->aVar, nVar, db, MEM_Null);
88769   initMemArray(p->aColName, n, db, MEM_Null);
89793   if( flags&MEM_Null ){
89987     pMem->flags = IsNaN(x) ? MEM_Null : MEM_Real;
90001     pMem->flags = MEM_Null;
90015       pMem->flags = MEM_Null|MEM_Zero;
90023       pMem->flags = MEM_Null;
90265        && ((mem1.flags & MEM_Null) || (pPKey2->aMem[i].flags & MEM_Null))
90355     sqlite3VdbeMemInit(&c1, pMem1->db, MEM_Null);
90356     sqlite3VdbeMemInit(&c2, pMem1->db, MEM_Null);
90473   if( combined_flags&MEM_Null ){
90474     return (f2&MEM_Null) - (f1&MEM_Null);
90799            !=(serial_type==0 || (pRhs->flags&MEM_Null)))
91049     testcase( flags & MEM_Null );
91051     if( (flags & (MEM_Real|MEM_IntReal|MEM_Null|MEM_Blob))==0
91253     if( 0==(pMem->flags & MEM_Null) ){
91627     p->aVar[i].flags = MEM_Null;
91646       assert( p->flags==MEM_Null && p->z==0 );
91677                  (MEM_Null|MEM_Term|MEM_Subtype)
91775     if( pVal->flags & MEM_Null ){
91795   return (pVal->flags&(MEM_Null|MEM_Zero))==(MEM_Null|MEM_Zero);
91821   }else if( pNew->flags & MEM_Null ){
91993   pOut->flags = MEM_Null;
92136   if( pCtx->pOut->flags & MEM_Null ){
92488                  (MEM_Null|MEM_Term|MEM_Subtype) );
92745         /* .flags      = */ (u16)MEM_Null,
93116   pVar->flags = MEM_Null;
94185       if( pVar->flags & MEM_Null ){
94837   assert( (pMem->flags & MEM_Null)==0
94839   if( pMem->flags & (MEM_Int|MEM_Real|MEM_IntReal|MEM_Null) ){
94843     return pMem->flags & (MEM_Int|MEM_Real|MEM_IntReal|MEM_Null);
94923   }else if( p->flags & MEM_Null ){
95562   if( (pIn3->flags & MEM_Null)==0 ) break;
95827   pOut->flags = nullFlag = pOp->p1 ? (MEM_Null|MEM_Cleared) : MEM_Null;
95854   pOut->flags = (pOut->flags&~(MEM_Undefined|MEM_AffMask))|MEM_Null;
96111   testcase( flags1 & MEM_Null );
96112   testcase( pIn2->flags & MEM_Null );
96113   if( (flags1 | pIn2->flags) & MEM_Null ){
96236   }else if( ((type1 | type2) & MEM_Null)!=0 ){
96347   if( (pIn1->flags | pIn2->flags) & MEM_Null ){
96620   if( (flags1 | flags3)&MEM_Null ){
96630       if( (flags1&flags3&MEM_Null)!=0
96635         res = ((flags3 & MEM_Null) ? -1 : +1);  /* Operands are not equal */
96845        && ((aMem[p1+idx].flags & MEM_Null) || (aMem[p2+idx].flags & MEM_Null))
96914     MemSetTypeFlag(pOut, MEM_Null);
96961   if( (pIn1->flags & MEM_Null)==0 ){
96980   if( (pIn1->flags & MEM_Null)==0 ){
97066   VdbeBranchTaken( (pIn1->flags & MEM_Null)!=0, 2);
97067   if( (pIn1->flags & MEM_Null)!=0 ){
97174   if( (aMem[pOp->p1].flags & MEM_Null)!=0
97175    || (aMem[pOp->p3].flags & MEM_Null)!=0
97191   VdbeBranchTaken( (pIn1->flags & MEM_Null)==0, 2);
97192   if( (pIn1->flags & MEM_Null)==0 ){
97512         pDest->flags = MEM_Null;
97618     if( (pIn1->flags & MEM_Null)==0 ){
97823     while( (pLast->flags & MEM_Null)!=0 && nField>pOp->p5 ){
97859     if( pRec->flags & MEM_Null ){
98843     assert( aMem[pOp->p3].flags & MEM_Null );
99161         if( (newType & MEM_Null) || oc>=OP_SeekGE ){
99717         if( r.aMem[ii].flags & MEM_Null ){
100449     pOut->flags = MEM_Null;
100469       pOut->flags = MEM_Null;
101187   pOut->flags = MEM_Null;
102061   sqlite3VdbeMemInit(pCtx->pOut, db, MEM_Null);
102117   assert( pCtx->pOut->flags==MEM_Null );
102139     pCtx->pOut->flags = MEM_Null;
102143   assert( pCtx->pOut->flags==MEM_Null );
102180   assert( (pMem->flags & ~(MEM_Null|MEM_Agg))==0 );
102657   pOut->flags = MEM_Null;
102774     pDest->flags = MEM_Null|MEM_Zero;
102777     MemSetTypeFlag(pDest, MEM_Null);
102938       assert( nArg>1 && apArg[0] && (apArg[0]->flags&MEM_Null) );
103068   MemSetTypeFlag(pOut, MEM_Null);
103130   if( pIn1->flags & MEM_Null ){
106867     if( r2->aMem[i].flags & MEM_Null ){