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Overview
Comment:Remove an invalid NEVER() and add a test case to cover it.
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SHA1:14b73d201509d3c04f760a08d21f3c499f2870a8
User & Date: drh 2015-06-24 01:07:30
Context
2015-06-24
10:46
Adjustment to a malloc test so that it accepts a narrow range of values to account for variations in malloc subsystems. check-in: e0195070 user: drh tags: trunk
01:07
Remove an invalid NEVER() and add a test case to cover it. check-in: 14b73d20 user: drh tags: trunk
00:05
Performance optimization on balance_nonroot() and related routines. 2.6% faster overall with a size increase of less than 750 bytes. check-in: 25131e70 user: drh tags: trunk
Changes
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Changes to src/btree.c.

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  if( !pPage->leaf ){
    MemPage *pLeaf = pCur->apPage[pCur->iPage];
    int nCell;
    Pgno n = pCur->apPage[iCellDepth+1]->pgno;
    unsigned char *pTmp;

    pCell = findCell(pLeaf, pLeaf->nCell-1);
    if( NEVER(pCell<&pLeaf->aData[4]) ) return SQLITE_CORRUPT_BKPT;
    nCell = pLeaf->xCellSize(pLeaf, pCell);
    assert( MX_CELL_SIZE(pBt) >= nCell );
    pTmp = pBt->pTmpSpace;
    assert( pTmp!=0 );
    rc = sqlite3PagerWrite(pLeaf->pDbPage);
    insertCell(pPage, iCellIdx, pCell-4, nCell+4, pTmp, n, &rc);
    dropCell(pLeaf, pLeaf->nCell-1, nCell, &rc);







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  if( !pPage->leaf ){
    MemPage *pLeaf = pCur->apPage[pCur->iPage];
    int nCell;
    Pgno n = pCur->apPage[iCellDepth+1]->pgno;
    unsigned char *pTmp;

    pCell = findCell(pLeaf, pLeaf->nCell-1);
    if( pCell<&pLeaf->aData[4] ) return SQLITE_CORRUPT_BKPT;
    nCell = pLeaf->xCellSize(pLeaf, pCell);
    assert( MX_CELL_SIZE(pBt) >= nCell );
    pTmp = pBt->pTmpSpace;
    assert( pTmp!=0 );
    rc = sqlite3PagerWrite(pLeaf->pDbPage);
    insertCell(pPage, iCellIdx, pCell-4, nCell+4, pTmp, n, &rc);
    dropCell(pLeaf, pLeaf->nCell-1, nCell, &rc);

Changes to test/fuzzdata3.db.

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