1530     int iFree = get2byte(&data[hdr+1]);  in defragmentPage()  local
1531     if( iFree>usableSize-4 ) return SQLITE_CORRUPT_PAGE(pPage);  in defragmentPage()
1532     if( iFree ){  in defragmentPage()
1533       int iFree2 = get2byte(&data[iFree]);  in defragmentPage()
1539         int sz = get2byte(&data[iFree+2]);  in defragmentPage()
1541         if( top>=iFree ){  in defragmentPage()
1545           if( iFree+sz>iFree2 ) return SQLITE_CORRUPT_PAGE(pPage);  in defragmentPage()
1548           memmove(&data[iFree+sz+sz2], &data[iFree+sz], iFree2-(iFree+sz));  in defragmentPage()
1550         }else if( iFree+sz>usableSize ){  in defragmentPage()
1555         assert( cbrk+(iFree-top) <= usableSize );  in defragmentPage()
1556         memmove(&data[cbrk], &data[top], iFree-top);  in defragmentPage()
1559           if( pc<iFree ){ put2byte(pAddr, pc+sz); }  in defragmentPage()
4053     Pgno iFree;        /* The next page to be freed */  in autoVacuumCommit()  local
4093     for(iFree=nOrig; iFree>nFin && rc==SQLITE_OK; iFree--){  in autoVacuumCommit()
4094       rc = incrVacuumStep(pBt, nFin, iFree, nVac==nFree);  in autoVacuumCommit()