SQLite

fuzztest:	fuzzcheck$(TEXE) $(FUZZDATA)
	./fuzzcheck$(TEXE) $(FUZZDATA)

fastfuzztest:	fuzzcheck$(TEXE) $(FUZZDATA)
	./fuzzcheck$(TEXE) --limit-mem 100M $(FUZZDATA)

valgrindfuzz:	fuzzcheck$(TEXT) $(FUZZDATA)
	valgrind ./fuzzcheck$(TEXE) --cell-size-check --limit-mem 10M --timeout 600 $(FUZZDATA)

# Minimal testing that runs in less than 3 minutes
#
quicktest:	./testfixture$(TEXE)
	./testfixture$(TEXE) $(TOP)/test/extraquick.test $(TESTOPTS)

# This is the common case.  Run many tests that do not take too long,

  fts5_tokenizer *pTokApi;

  /* Values loaded from the %_config table */
  int iCookie;                    /* Incremented when %_config is modified */
  int pgsz;                       /* Approximate page size used in %_data */
  int nAutomerge;                 /* 'automerge' setting */
  int nCrisisMerge;               /* Maximum allowed segments per level */
  int nHashSize;                  /* Bytes of memory for in-memory hash */
  char *zRank;                    /* Name of rank function */
  char *zRankArgs;                /* Arguments to rank function */

  /* If non-NULL, points to sqlite3_vtab.base.zErrmsg. Often NULL. */
  char **pzErrmsg;

#ifdef SQLITE_DEBUG

#include "fts5Int.h"

#define FTS5_DEFAULT_PAGE_SIZE   4050
#define FTS5_DEFAULT_AUTOMERGE      4
#define FTS5_DEFAULT_CRISISMERGE   16
#define FTS5_DEFAULT_HASHSIZE    (1024*1024)

/* Maximum allowed page size */
#define FTS5_MAX_PAGE_SIZE (128*1024)

static int fts5_iswhitespace(char x){
  return (x==' ');
}

  char *zRank = 0;
  char *zRankArgs = 0;
  int rc = SQLITE_OK;

  *pzRank = 0;
  *pzRankArgs = 0;

  if( p==0 ){
    rc = SQLITE_ERROR;
  }else{
    p = fts5ConfigSkipWhitespace(p);
    pRank = p;
    p = fts5ConfigSkipBareword(p);

    if( p ){
      zRank = sqlite3Fts5MallocZero(&rc, 1 + p - pRank);
      if( zRank ) memcpy(zRank, pRank, p-pRank);
    }else{
      rc = SQLITE_ERROR;
    }

    if( rc==SQLITE_OK ){
      p = fts5ConfigSkipWhitespace(p);
      if( *p!='(' ) rc = SQLITE_ERROR;
      p++;
    }
    if( rc==SQLITE_OK ){
      const char *pArgs; 
      p = fts5ConfigSkipWhitespace(p);
      pArgs = p;
      if( *p!=')' ){
        p = fts5ConfigSkipArgs(p);
        if( p==0 ){
          rc = SQLITE_ERROR;
        }else{
          zRankArgs = sqlite3Fts5MallocZero(&rc, 1 + p - pArgs);
          if( zRankArgs ) memcpy(zRankArgs, pArgs, p-pArgs);
        }
      }
    }
  }

  if( rc!=SQLITE_OK ){
    sqlite3_free(zRank);
    assert( zRankArgs==0 );

    }
    if( pgsz<=0 || pgsz>FTS5_MAX_PAGE_SIZE ){
      *pbBadkey = 1;
    }else{
      pConfig->pgsz = pgsz;
    }
  }

  else if( 0==sqlite3_stricmp(zKey, "hashsize") ){
    int nHashSize = -1;
    if( SQLITE_INTEGER==sqlite3_value_numeric_type(pVal) ){
      nHashSize = sqlite3_value_int(pVal);
    }
    if( nHashSize<=0 ){
      *pbBadkey = 1;
    }else{
      pConfig->nHashSize = nHashSize;
    }
  }

  else if( 0==sqlite3_stricmp(zKey, "automerge") ){
    int nAutomerge = -1;
    if( SQLITE_INTEGER==sqlite3_value_numeric_type(pVal) ){
      nAutomerge = sqlite3_value_int(pVal);
    }
    if( nAutomerge<0 || nAutomerge>64 ){

  int rc = SQLITE_OK;
  int iVersion = 0;

  /* Set default values */
  pConfig->pgsz = FTS5_DEFAULT_PAGE_SIZE;
  pConfig->nAutomerge = FTS5_DEFAULT_AUTOMERGE;
  pConfig->nCrisisMerge = FTS5_DEFAULT_CRISISMERGE;
  pConfig->nHashSize = FTS5_DEFAULT_HASHSIZE;

  zSql = sqlite3Fts5Mprintf(&rc, zSelect, pConfig->zDb, pConfig->zName);
  if( zSql ){
    rc = sqlite3_prepare_v2(pConfig->db, zSql, -1, &p, 0);
    sqlite3_free(zSql);
  }

  int nWorkUnit;                  /* Leaf pages in a "unit" of work */

  /*
  ** Variables related to the accumulation of tokens and doclists within the
  ** in-memory hash tables before they are flushed to disk.
  */
  Fts5Hash *pHash;                /* Hash table for in-memory data */

  int nPendingData;               /* Current bytes of pending data */
  i64 iWriteRowid;                /* Rowid for current doc being written */
  int bDelete;                    /* Current write is a delete */

  /* Error state. */
  int rc;                         /* Current error code */

  if( p->pHash==0 ){
    p->rc = sqlite3Fts5HashNew(&p->pHash, &p->nPendingData);
  }

  /* Flush the hash table to disk if required */
  if( iRowid<p->iWriteRowid 
   || (iRowid==p->iWriteRowid && p->bDelete==0)
   || (p->nPendingData > p->pConfig->nHashSize) 
  ){
    fts5IndexFlush(p);
  }

  p->iWriteRowid = iRowid;
  p->bDelete = bDelete;
  return fts5IndexReturn(p);

  int rc = SQLITE_OK;
  Fts5Index *p;                   /* New object */

  *pp = p = (Fts5Index*)sqlite3Fts5MallocZero(&rc, sizeof(Fts5Index));
  if( rc==SQLITE_OK ){
    p->pConfig = pConfig;
    p->nWorkUnit = FTS5_WORK_UNIT;

    p->zDataTbl = sqlite3Fts5Mprintf(&rc, "%s_data", pConfig->zName);
    if( p->zDataTbl && bCreate ){
      rc = sqlite3Fts5CreateTable(
          pConfig, "data", "id INTEGER PRIMARY KEY, block BLOB", 0, pzErr
      );
      if( rc==SQLITE_OK ){
        rc = sqlite3Fts5CreateTable(pConfig, "idx", 

    );
  }

  /* Call sqlite3_declare_vtab() */
  if( rc==SQLITE_OK ){
    rc = sqlite3Fts5ConfigDeclareVtab(pConfig);
  }

  /* Load the initial configuration */
  if( rc==SQLITE_OK ){
    assert( pConfig->pzErrmsg==0 );
    pConfig->pzErrmsg = pzErr;
    rc = sqlite3Fts5IndexLoadConfig(pTab->pIndex);
    sqlite3Fts5IndexRollback(pTab->pIndex);
    pConfig->pzErrmsg = 0;
  }

  if( rc!=SQLITE_OK ){
    fts5FreeVtab(pTab);
    pTab = 0;
  }else if( bCreate ){
    fts5CheckTransactionState(pTab, FTS5_BEGIN, 0);
  }

        break;
    }
  }
  
  return rc;
}


static sqlite3_stmt *fts5PrepareStatement(
  int *pRc,
  Fts5Config *pConfig, 
  const char *zFmt,
  ...
){
  sqlite3_stmt *pRet = 0;
  va_list ap;
  va_start(ap, zFmt);

  if( *pRc==SQLITE_OK ){
    int rc;
    char *zSql = sqlite3_vmprintf(zFmt, ap);
    if( zSql==0 ){
      rc = SQLITE_NOMEM; 
    }else{
      rc = sqlite3_prepare_v2(pConfig->db, zSql, -1, &pRet, 0);
      if( rc!=SQLITE_OK ){
        *pConfig->pzErrmsg = sqlite3_mprintf("%s", sqlite3_errmsg(pConfig->db));
      }
      sqlite3_free(zSql);
    }
    *pRc = rc;
  }

  va_end(ap);
  return pRet;
} 

static int fts5CursorFirstSorted(Fts5Table *pTab, Fts5Cursor *pCsr, int bDesc){
  Fts5Config *pConfig = pTab->pConfig;
  Fts5Sorter *pSorter;
  int nPhrase;
  int nByte;
  int rc = SQLITE_OK;

  const char *zRank = pCsr->zRank;
  const char *zRankArgs = pCsr->zRankArgs;
  
  nPhrase = sqlite3Fts5ExprPhraseCount(pCsr->pExpr);
  nByte = sizeof(Fts5Sorter) + sizeof(int) * (nPhrase-1);
  pSorter = (Fts5Sorter*)sqlite3_malloc(nByte);
  if( pSorter==0 ) return SQLITE_NOMEM;
  memset(pSorter, 0, nByte);
  pSorter->nIdx = nPhrase;

  /* TODO: It would be better to have some system for reusing statement
  ** handles here, rather than preparing a new one for each query. But that
  ** is not possible as SQLite reference counts the virtual table objects.
  ** And since the statement required here reads from this very virtual 
  ** table, saving it creates a circular reference.
  **
  ** If SQLite a built-in statement cache, this wouldn't be a problem. */
  pSorter->pStmt = fts5PrepareStatement(&rc, pConfig,
      "SELECT rowid, rank FROM %Q.%Q ORDER BY %s(%s%s%s) %s",
      pConfig->zDb, pConfig->zName, zRank, pConfig->zName,
      (zRankArgs ? ", " : ""),
      (zRankArgs ? zRankArgs : ""),
      bDesc ? "DESC" : "ASC"
  );





  pCsr->pSorter = pSorter;
  if( rc==SQLITE_OK ){
    assert( pTab->pSortCsr==0 );
    pTab->pSortCsr = pCsr;
    rc = fts5SorterNext(pCsr);
    pTab->pSortCsr = 0;

do_faultsim_test 2 -prep {
  faultsim_restore_and_reopen
} -body {
  execsql { 
    INSERT INTO t1 VALUES('a b c', 'a bc def ghij klmno');
  }
} -test {
  faultsim_test_result {0 {}} {1 {vtable constructor failed: t1}}
}

reset_db
do_execsql_test 3.0 {
  CREATE VIRTUAL TABLE t1 USING fts5(a, b, prefix='1, 2, 3');
  INSERT INTO t1 VALUES('a b c', 'a bc def ghij klmno');
}
faultsim_save_and_close
do_faultsim_test 3 -prep {
  faultsim_restore_and_reopen
} -body {
  execsql { DELETE FROM t1 }
} -test {
  faultsim_test_result {0 {}} {1 {vtable constructor failed: t1}}
}

reset_db
do_execsql_test 4.0 {
  CREATE VIRTUAL TABLE t2 USING fts5(a, b);
  INSERT INTO t2 VALUES('m f a jj th q jr ar',   'hj n h h sg j i m');
  INSERT INTO t2 VALUES('nr s t g od j kf h',    'sb h aq rg op rb n nl');

  9 { m* + f* }       {1 8}
} {
  do_faultsim_test 4.$tn -prep {
    faultsim_restore_and_reopen
  } -body "
    execsql { SELECT rowid FROM t2 WHERE t2 MATCH '$expr' }
  " -test "
    faultsim_test_result {[list 0 $res]} {1 {vtable constructor failed: t2}}
  "
}


#-------------------------------------------------------------------------
# The following tests use a larger database populated with random data.
#

}

set ::res [db eval {SELECT rowid, x1 FROM x1 WHERE x1 MATCH '*reads'}]

do_faultsim_test 4 -faults oom-* -body {
  db eval {SELECT rowid, x, x1 FROM x1 WHERE x1 MATCH '*reads'}
} -test {
  faultsim_test_result {0 {0 {} 4}}
}

#-------------------------------------------------------------------------
# An OOM within a query that uses a custom rank function.
#
reset_db
do_execsql_test 5.0 {

  SELECT highlight(xyz, 0, '[', ']') FROM xyz WHERE xyz MATCH 'x' ORDER BY rank
} [list [string map {x [x]} $doc]]

do_execsql_test 1.3 {
  SELECT highlight(xyz, 0, '[', ']') FROM xyz
  WHERE xyz MATCH 'x AND y' ORDER BY rank
} [list [string map {x [x] y [y]} $doc]]

#-------------------------------------------------------------------------
# Check that the 'rank' option really is persistent.
#
do_execsql_test 2.0 {
  CREATE VIRTUAL TABLE tt USING fts5(a);
  INSERT INTO tt VALUES('a x x x x');
  INSERT INTO tt VALUES('x x a a a');
  INSERT INTO tt VALUES('x a a x x');
}

proc firstinst {cmd} { 
  foreach {p c o} [$cmd xInst 0] {}
  return $o
}
sqlite3_fts5_create_function db firstinst firstinst

do_execsql_test 2.1 {
  SELECT rowid FROM tt('a') ORDER BY rank;
} {2 3 1}

do_execsql_test 2.2 {
  SELECT rowid FROM tt('a', 'firstinst()') ORDER BY rank;
} {1 3 2}

do_execsql_test 2.3 {
  INSERT INTO tt(tt, rank) VALUES('rank', 'firstinst()');
  SELECT rowid FROM tt('a') ORDER BY rank;
} {1 3 2}

do_test 2.4 {
  sqlite3 db2 test.db
  catchsql { SELECT rowid FROM tt('a') ORDER BY rank; } db2
} {1 {no such function: firstinst}}

do_test 2.5 {
  db2 close
  sqlite3 db2 test.db
  sqlite3_fts5_create_function db2 firstinst firstinst
  execsql { SELECT rowid FROM tt('a') ORDER BY rank; } db2
} {1 3 2}

do_test 2.6 {
  execsql { SELECT rowid FROM tt('a') ORDER BY rank; } db2
} {1 3 2}

do_test 2.7 {
  execsql { SELECT rowid FROM tt('a') ORDER BY rank; } db
} {1 3 2}







finish_test

set testprefix fts5simple

# If SQLITE_ENABLE_FTS5 is defined, omit this file.
ifcapable !fts5 {
  finish_test
  return
}
 
#-------------------------------------------------------------------------
#
set doc "x x [string repeat {y } 50]z z"
do_execsql_test 1.0 {
  CREATE VIRTUAL TABLE t1 USING fts5(x);
  INSERT INTO t1(t1, rank) VALUES('pgsz', 32);
  BEGIN;

  1 {1 2 3}
  3 {2 3 4}
}

do_execsql_test 13.3 {
  INSERT INTO xy(xy) VALUES('integrity-check');
}

#-------------------------------------------------------------------------
#
do_execsql_test 14.1 {
  CREATE VIRTUAL TABLE ttt USING fts5(x);
  BEGIN;
    INSERT INTO ttt(rowid, x) VALUES(1, 'a b c');
    INSERT INTO ttt(rowid, x) VALUES(2, 'a b c');
    INSERT INTO ttt(rowid, x) VALUES(3, 'a b c');
  COMMIT;
}
do_test 14.2 { 
  fts5_level_segs ttt 
} {1}

#-------------------------------------------------------------------------
db func rnddoc fts5_rnddoc
do_execsql_test 4.0 {
  CREATE VIRTUAL TABLE x1 USING fts5(x);
  INSERT INTO x1(x1, rank) VALUES('pgsz', 32);

  WITH ii(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM ii WHERE i<10 )
  INSERT INTO x1 SELECT rnddoc(5) FROM ii;
}

do_execsql_test 4.1 {
  SELECT rowid, x, x1 FROM x1 WHERE x1 MATCH '*reads'
} {0 {} 4}


finish_test

  puts stderr "  -porter      (use porter tokenizer)"
  puts stderr "  -delete      (delete the database file before starting)"
  puts stderr "  -limit N     (load no more than N documents)"
  puts stderr "  -automerge N (set the automerge parameter to N)"
  puts stderr "  -crisismerge N (set the crisismerge parameter to N)"
  puts stderr "  -prefix PREFIX (comma separated prefix= argument)"
  puts stderr "  -trans N     (commit after N inserts - 0 == never)"
  puts stderr "  -hashsize N  (set the fts5 hashsize parameter to N)"
  exit 1
}

set O(vtab)       fts5
set O(tok)        ""
set O(limit)      0
set O(delete)     0
set O(automerge)  -1
set O(crisismerge)  -1
set O(prefix)     ""
set O(trans)      0
set O(hashsize)   -1

if {[llength $argv]<2} usage
set nOpt [expr {[llength $argv]-2}]
for {set i 0} {$i < $nOpt} {incr i} {
  set arg [lindex $argv $i]
  switch -- [lindex $argv $i] {
    -fts4 {

      set O(crisismerge) [lindex $argv $i]
    }

    -prefix {
      if { [incr i]>=$nOpt } usage
      set O(prefix) [lindex $argv $i]
    }

    -hashsize {
      if { [incr i]>=$nOpt } usage
      set O(hashsize) [lindex $argv $i]
    }

    default {
      usage
    }
  }
}

db eval BEGIN
  set pref ""
  if {$O(prefix)!=""} { set pref ", prefix='$O(prefix)'" }
  catch {
    db eval "CREATE VIRTUAL TABLE t1 USING $O(vtab) (path, content$O(tok)$pref)"
    db eval "INSERT INTO t1(t1, rank) VALUES('pgsz', 4050);"
  }

  if {$O(hashsize)>=0} {
    catch {
      db eval "INSERT INTO t1(t1, rank) VALUES('hashsize', $O(hashsize));"
    }
  }


  if {$O(automerge)>=0} {
    if {$O(vtab) == "fts5"} {
      db eval { INSERT INTO t1(t1, rank) VALUES('automerge', $O(automerge)) }
    } else {
      db eval { INSERT INTO t1(t1) VALUES('automerge=' || $O(automerge)) }
    }
  }
  if {$O(crisismerge)>=0} {
    if {$O(vtab) == "fts5"} {
      db eval {INSERT INTO t1(t1, rank) VALUES('crisismerge', $O(crisismerge))}
    } else {
    }
  }
  load_hierachy [lindex $argv end]
db eval COMMIT
puts ""

      sqlite3_result_double(context, 0.0);
      return;
    }
    while( (m>>32)&0xffe00000 ){
      m >>= 1;
      e++;
    }
    while( m!=0 && ((m>>32)&0xfff00000)==0 ){
      m <<= 1;
      e--;
    }
    e += 1075;
    if( e<0 ) e = m = 0;
    if( e>0x7ff ) e = 0x7ff;
    a = m & ((((sqlite3_int64)1)<<52)-1);
    a |= e<<52;
    if( isNeg ) a |= ((sqlite3_uint64)1)<<63;
    memcpy(&r, &a, sizeof(r));
    sqlite3_result_double(context, r);
  }
}


#ifdef _WIN32

fuzztest:	fuzzcheck$(EXE) $(FUZZDATA)
	./fuzzcheck$(EXE) $(FUZZDATA)

fastfuzztest:	fuzzcheck$(EXE) $(FUZZDATA)
	./fuzzcheck$(EXE) --limit-mem 100M $(FUZZDATA)

valgrindfuzz:	fuzzcheck$(EXE) $(FUZZDATA)
	valgrind ./fuzzcheck$(EXE) --cell-size-check --limit-mem 10M --timeout 600 $(FUZZDATA)

# A very quick test using only testfixture and omitting all the slower
# tests.  Designed to run in under 3 minutes on a workstation.
#
quicktest:	./testfixture$(EXE)
	./testfixture$(EXE) $(TOP)/test/extraquick.test $(TESTOPTS)

  ** page. For each iteration, variable iOff is set to the byte offset
  ** of the destination page.
  */
  for(iOff=iEnd-(i64)nSrcPgsz; rc==SQLITE_OK && iOff<iEnd; iOff+=nDestPgsz){
    DbPage *pDestPg = 0;
    Pgno iDest = (Pgno)(iOff/nDestPgsz)+1;
    if( iDest==PENDING_BYTE_PAGE(p->pDest->pBt) ) continue;
    if( SQLITE_OK==(rc = sqlite3PagerGet(pDestPager, iDest, &pDestPg, 0))
     && SQLITE_OK==(rc = sqlite3PagerWrite(pDestPg))
    ){
      const u8 *zIn = &zSrcData[iOff%nSrcPgsz];
      u8 *zDestData = sqlite3PagerGetData(pDestPg);
      u8 *zOut = &zDestData[iOff%nDestPgsz];

      /* Copy the data from the source page into the destination page.

    */
    nSrcPage = (int)sqlite3BtreeLastPage(p->pSrc);
    assert( nSrcPage>=0 );
    for(ii=0; (nPage<0 || ii<nPage) && p->iNext<=(Pgno)nSrcPage && !rc; ii++){
      const Pgno iSrcPg = p->iNext;                 /* Source page number */
      if( iSrcPg!=PENDING_BYTE_PAGE(p->pSrc->pBt) ){
        DbPage *pSrcPg;                             /* Source page object */
        rc = sqlite3PagerGet(pSrcPager, iSrcPg, &pSrcPg,PAGER_GET_READONLY);

        if( rc==SQLITE_OK ){
          rc = backupOnePage(p, iSrcPg, sqlite3PagerGetData(pSrcPg), 0);
          sqlite3PagerUnref(pSrcPg);
        }
      }
      p->iNext++;
    }

          ** the database file in any way, knowing that if a power failure
          ** occurs, the original database will be reconstructed from the 
          ** journal file.  */
          sqlite3PagerPagecount(pDestPager, &nDstPage);
          for(iPg=nDestTruncate; rc==SQLITE_OK && iPg<=(Pgno)nDstPage; iPg++){
            if( iPg!=PENDING_BYTE_PAGE(p->pDest->pBt) ){
              DbPage *pPg;
              rc = sqlite3PagerGet(pDestPager, iPg, &pPg, 0);
              if( rc==SQLITE_OK ){
                rc = sqlite3PagerWrite(pPg);
                sqlite3PagerUnref(pPg);
              }
            }
          }
          if( rc==SQLITE_OK ){
            rc = sqlite3PagerCommitPhaseOne(pDestPager, 0, 1);
          }

          /* Write the extra pages and truncate the database file as required */
          iEnd = MIN(PENDING_BYTE + pgszDest, iSize);
          for(
            iOff=PENDING_BYTE+pgszSrc; 
            rc==SQLITE_OK && iOff<iEnd; 
            iOff+=pgszSrc
          ){
            PgHdr *pSrcPg = 0;
            const Pgno iSrcPg = (Pgno)((iOff/pgszSrc)+1);
            rc = sqlite3PagerGet(pSrcPager, iSrcPg, &pSrcPg, 0);
            if( rc==SQLITE_OK ){
              u8 *zData = sqlite3PagerGetData(pSrcPg);
              rc = sqlite3OsWrite(pFile, zData, pgszSrc, iOff);
            }
            sqlite3PagerUnref(pSrcPg);
          }
          if( rc==SQLITE_OK ){

  assert( pBt->autoVacuum );
  if( key==0 ){
    *pRC = SQLITE_CORRUPT_BKPT;
    return;
  }
  iPtrmap = PTRMAP_PAGENO(pBt, key);
  rc = sqlite3PagerGet(pBt->pPager, iPtrmap, &pDbPage, 0);
  if( rc!=SQLITE_OK ){
    *pRC = rc;
    return;
  }
  offset = PTRMAP_PTROFFSET(iPtrmap, key);
  if( offset<0 ){
    *pRC = SQLITE_CORRUPT_BKPT;

  u8 *pPtrmap;       /* Pointer map page data */
  int offset;        /* Offset of entry in pointer map */
  int rc;

  assert( sqlite3_mutex_held(pBt->mutex) );

  iPtrmap = PTRMAP_PAGENO(pBt, key);
  rc = sqlite3PagerGet(pBt->pPager, iPtrmap, &pDbPage, 0);
  if( rc!=0 ){
    return rc;
  }
  pPtrmap = (u8 *)sqlite3PagerGetData(pDbPage);

  offset = PTRMAP_PTROFFSET(iPtrmap, key);
  if( offset<0 ){

/*
** Convert a DbPage obtained from the pager into a MemPage used by
** the btree layer.
*/
static MemPage *btreePageFromDbPage(DbPage *pDbPage, Pgno pgno, BtShared *pBt){
  MemPage *pPage = (MemPage*)sqlite3PagerGetExtra(pDbPage);
  if( pgno!=pPage->pgno ){
    pPage->aData = sqlite3PagerGetData(pDbPage);
    pPage->pDbPage = pDbPage;
    pPage->pBt = pBt;
    pPage->pgno = pgno;
    pPage->hdrOffset = pgno==1 ? 100 : 0;
  }
  assert( pPage->aData==sqlite3PagerGetData(pDbPage) );
  return pPage; 
}

/*
** Get a page from the pager.  Initialize the MemPage.pBt and
** MemPage.aData elements if needed.  See also: btreeGetUnusedPage().
**

  int flags            /* PAGER_GET_NOCONTENT or PAGER_GET_READONLY */
){
  int rc;
  DbPage *pDbPage;

  assert( flags==0 || flags==PAGER_GET_NOCONTENT || flags==PAGER_GET_READONLY );
  assert( sqlite3_mutex_held(pBt->mutex) );
  rc = sqlite3PagerGet(pBt->pPager, pgno, (DbPage**)&pDbPage, flags);
  if( rc ) return rc;
  *ppPage = btreePageFromDbPage(pDbPage, pgno, pBt);
  return SQLITE_OK;
}

/*
** Retrieve a page from the pager cache. If the requested page is not

  assert( pCur==0 || bReadOnly==pCur->curPagerFlags );
  assert( pCur==0 || pCur->iPage>0 );

  if( pgno>btreePagecount(pBt) ){
    rc = SQLITE_CORRUPT_BKPT;
    goto getAndInitPage_error;
  }
  rc = sqlite3PagerGet(pBt->pPager, pgno, (DbPage**)&pDbPage, bReadOnly);
  if( rc ){
    goto getAndInitPage_error;
  }
  *ppPage = (MemPage*)sqlite3PagerGetExtra(pDbPage);
  if( (*ppPage)->isInit==0 ){
    btreePageFromDbPage(pDbPage, pgno, pBt);
    rc = btreeInitPage(*ppPage);
    if( rc!=SQLITE_OK ){
      releasePage(*ppPage);
      goto getAndInitPage_error;
    }
  }
  assert( (*ppPage)->pgno==pgno );
  assert( (*ppPage)->aData==sqlite3PagerGetData(pDbPage) );

  /* If obtaining a child page for a cursor, we must verify that the page is
  ** compatible with the root page. */

  if( pCur && ((*ppPage)->nCell<1 || (*ppPage)->intKey!=pCur->curIntKey) ){

    rc = SQLITE_CORRUPT_BKPT;
    releasePage(*ppPage);
    goto getAndInitPage_error;
  }
  return SQLITE_OK;

getAndInitPage_error:

          nextPage = get4byte(aWrite);
          memcpy(aWrite, aSave, 4);
        }else
#endif

        {
          DbPage *pDbPage;
          rc = sqlite3PagerGet(pBt->pPager, nextPage, &pDbPage,
              ((eOp&0x01)==0 ? PAGER_GET_READONLY : 0)
          );
          if( rc==SQLITE_OK ){
            aPayload = sqlite3PagerGetData(pDbPage);
            nextPage = get4byte(aPayload);
            rc = copyPayload(&aPayload[offset+4], pBuf, a, (eOp&0x01), pDbPage);
            sqlite3PagerUnref(pDbPage);

**
**     *pRes==0     The cursor is left pointing at an entry that
**                  exactly matches intKey/pIdxKey.
**
**     *pRes>0      The cursor is left pointing at an entry that
**                  is larger than intKey/pIdxKey.
**
** For index tables, the pIdxKey->eqSeen field is set to 1 if there
** exists an entry in the table that exactly matches pIdxKey.  
*/
int sqlite3BtreeMovetoUnpacked(
  BtCursor *pCur,          /* The cursor to be moved */
  UnpackedRecord *pIdxKey, /* Unpacked index key */
  i64 intKey,              /* The table key */
  int biasRight,           /* If true, bias the search to the high end */
  int *pRes                /* Write search results here */

** size of a cell stored within an internal node is always less than 1/4
** of the page-size, the aOvflSpace[] buffer is guaranteed to be large
** enough for all overflow cells.
**
** If aOvflSpace is set to a null pointer, this function returns 
** SQLITE_NOMEM.
*/



static int balance_nonroot(
  MemPage *pParent,               /* Parent page of siblings being balanced */
  int iParentIdx,                 /* Index of "the page" in pParent */
  u8 *aOvflSpace,                 /* page-size bytes of space for parent ovfl */
  int isRoot,                     /* True if pParent is a root-page */
  int bBulk                       /* True if this call is part of a bulk load */
){

  }
  for(i=0; i<nNew; i++){
    releasePage(apNew[i]);
  }

  return rc;
}





/*
** This function is called when the root page of a b-tree structure is
** overfull (has one or more overflow pages).
**
** A new child page is allocated and the contents of the current root

    if( iPage<1 ){
      checkAppendMsg(pCheck,
         "%d of %d pages missing from overflow list starting at %d",
          N+1, expected, iFirst);
      break;
    }
    if( checkRef(pCheck, iPage) ) break;
    if( sqlite3PagerGet(pCheck->pPager, (Pgno)iPage, &pOvflPage, 0) ){
      checkAppendMsg(pCheck, "failed to get page %d", iPage);
      break;
    }
    pOvflData = (unsigned char *)sqlite3PagerGetData(pOvflPage);
    if( isFreeList ){
      int n = get4byte(&pOvflData[4]);
#ifndef SQLITE_OMIT_AUTOVACUUM

    }
  }

  pBt->btsFlags &= ~BTS_NO_WAL;
  return rc;
}


/*
** Return true if the cursor has a hint specified.  This routine is
** only used from within assert() statements
*/
int sqlite3BtreeCursorHasHint(BtCursor *pCsr, unsigned int mask){
  return (pCsr->hints & mask)!=0;
}


/*
** Return true if the given Btree is read-only.
*/
int sqlite3BtreeIsReadonly(Btree *p){
  return (p->pBt->btsFlags & BTS_READ_ONLY)!=0;
}

/*
** Return the size of the header added to each page by this module.
*/
int sqlite3HeaderSizeBtree(void){ return ROUND8(sizeof(MemPage)); }

char *sqlite3BtreeIntegrityCheck(Btree*, int *aRoot, int nRoot, int, int*);
struct Pager *sqlite3BtreePager(Btree*);

int sqlite3BtreePutData(BtCursor*, u32 offset, u32 amt, void*);
void sqlite3BtreeIncrblobCursor(BtCursor *);
void sqlite3BtreeClearCursor(BtCursor *);
int sqlite3BtreeSetVersion(Btree *pBt, int iVersion);

int sqlite3BtreeCursorHasHint(BtCursor*, unsigned int mask);

int sqlite3BtreeIsReadonly(Btree *pBt);
int sqlite3HeaderSizeBtree(void);

#ifndef NDEBUG
int sqlite3BtreeCursorIsValid(BtCursor*);
#endif

  i64 nKey;                 /* Size of pKey, or last integer key */
  void *pKey;               /* Saved key that was cursor last known position */
  Pgno pgnoRoot;            /* The root page of this tree */
  int nOvflAlloc;           /* Allocated size of aOverflow[] array */
  int skipNext;    /* Prev() is noop if negative. Next() is noop if positive.
                   ** Error code if eState==CURSOR_FAULT */
  u8 curFlags;              /* zero or more BTCF_* flags defined below */
  u8 curPagerFlags;         /* Flags to send to sqlite3PagerGet() */
  u8 eState;                /* One of the CURSOR_XXX constants (see below) */
  u8 hints;                 /* As configured by CursorSetHints() */
  /* All fields above are zeroed when the cursor is allocated.  See
  ** sqlite3BtreeCursorZero().  Fields that follow must be manually
  ** initialized. */
  i8 iPage;                 /* Index of current page in apPage */
  u8 curIntKey;             /* Value of apPage[0]->intKey */

          pCell->aOvfl = sqlite3_malloc64(sizeof(u32)*nOvfl);
          if( pCell->aOvfl==0 ) return SQLITE_NOMEM;
          pCell->aOvfl[0] = sqlite3Get4byte(&aData[iOff+nLocal]);
          for(j=1; j<nOvfl; j++){
            int rc;
            u32 iPrev = pCell->aOvfl[j-1];
            DbPage *pPg = 0;
            rc = sqlite3PagerGet(sqlite3BtreePager(pBt), iPrev, &pPg, 0);
            if( rc!=SQLITE_OK ){
              assert( pPg==0 );
              return rc;
            } 
            pCell->aOvfl[j] = sqlite3Get4byte(sqlite3PagerGetData(pPg));
            sqlite3PagerUnref(pPg);
          }

      int nPage;
      u32 iRoot = (u32)sqlite3_column_int64(pCsr->pStmt, 1);
      sqlite3PagerPagecount(pPager, &nPage);
      if( nPage==0 ){
        pCsr->isEof = 1;
        return sqlite3_reset(pCsr->pStmt);
      }
      rc = sqlite3PagerGet(pPager, iRoot, &pCsr->aPage[0].pPg, 0);
      pCsr->aPage[0].iPgno = iRoot;
      pCsr->aPage[0].iCell = 0;
      pCsr->aPage[0].zPath = z = sqlite3_mprintf("/");
      pCsr->iPage = 0;
      if( z==0 ) rc = SQLITE_NOMEM;
    }else{
      pCsr->isEof = 1;

    assert( p==&pCsr->aPage[pCsr->iPage-1] );

    if( p->iCell==p->nCell ){
      p[1].iPgno = p->iRightChildPg;
    }else{
      p[1].iPgno = p->aCell[p->iCell].iChildPg;
    }
    rc = sqlite3PagerGet(pPager, p[1].iPgno, &p[1].pPg, 0);
    p[1].iCell = 0;
    p[1].zPath = z = sqlite3_mprintf("%s%.3x/", p->zPath, p->iCell);
    p->iCell++;
    if( z==0 ) rc = SQLITE_NOMEM;
  }

    ** the data just read from the sub-journal. Mark the page as dirty 
    ** and if the pager requires a journal-sync, then mark the page as 
    ** requiring a journal-sync before it is written.
    */
    assert( isSavepnt );
    assert( (pPager->doNotSpill & SPILLFLAG_ROLLBACK)==0 );
    pPager->doNotSpill |= SPILLFLAG_ROLLBACK;
    rc = sqlite3PagerGet(pPager, pgno, &pPg, 1);
    assert( (pPager->doNotSpill & SPILLFLAG_ROLLBACK)!=0 );
    pPager->doNotSpill &= ~SPILLFLAG_ROLLBACK;
    if( rc!=SQLITE_OK ) return rc;
    pPg->flags &= ~PGHDR_NEED_READ;
    sqlite3PcacheMakeDirty(pPg);
  }
  if( pPg ){

  }

  return rc;
}

/*
** This function is called to obtain a shared lock on the database file.
** It is illegal to call sqlite3PagerGet() until after this function
** has been successfully called. If a shared-lock is already held when
** this function is called, it is a no-op.
**
** The following operations are also performed by this function.
**
**   1) If the pager is currently in PAGER_OPEN state (no lock held
**      on the database file), then an attempt is made to obtain a

** to find a page in the in-memory cache first.  If the page is not already
** in memory, this routine goes to disk to read it in whereas Lookup()
** just returns 0.  This routine acquires a read-lock the first time it
** has to go to disk, and could also playback an old journal if necessary.
** Since Lookup() never goes to disk, it never has to deal with locks
** or journal files.
*/
int sqlite3PagerGet(
  Pager *pPager,      /* The pager open on the database file */
  Pgno pgno,          /* Page number to fetch */
  DbPage **ppPage,    /* Write a pointer to the page here */
  int flags           /* PAGER_GET_XXX flags */
){
  int rc = SQLITE_OK;
  PgHdr *pPg = 0;

  assert((pg1+nPage)>pPg->pgno);

  for(ii=0; ii<nPage && rc==SQLITE_OK; ii++){
    Pgno pg = pg1+ii;
    PgHdr *pPage;
    if( pg==pPg->pgno || !sqlite3BitvecTest(pPager->pInJournal, pg) ){
      if( pg!=PAGER_MJ_PGNO(pPager) ){
        rc = sqlite3PagerGet(pPager, pg, &pPage, 0);
        if( rc==SQLITE_OK ){
          rc = pager_write(pPage);
          if( pPage->flags&PGHDR_NEED_SYNC ){
            needSync = 1;
          }
          sqlite3PagerUnrefNotNull(pPage);
        }

  if( !pPager->changeCountDone && ALWAYS(pPager->dbSize>0) ){
    PgHdr *pPgHdr;                /* Reference to page 1 */

    assert( !pPager->tempFile && isOpen(pPager->fd) );

    /* Open page 1 of the file for writing. */
    rc = sqlite3PagerGet(pPager, 1, &pPgHdr, 0);
    assert( pPgHdr==0 || rc==SQLITE_OK );

    /* If page one was fetched successfully, and this function is not
    ** operating in direct-mode, make page 1 writable.  When not in 
    ** direct mode, page 1 is always held in cache and hence the PagerGet()
    ** above is always successful - hence the ALWAYS on rc==SQLITE_OK.
    */

  }else{
    if( pagerUseWal(pPager) ){
      PgHdr *pList = sqlite3PcacheDirtyList(pPager->pPCache);
      PgHdr *pPageOne = 0;
      if( pList==0 ){
        /* Must have at least one page for the WAL commit flag.
        ** Ticket [2d1a5c67dfc2363e44f29d9bbd57f] 2011-05-18 */
        rc = sqlite3PagerGet(pPager, 1, &pPageOne, 0);
        pList = pPageOne;
        pList->pDirty = 0;
      }
      assert( rc==SQLITE_OK );
      if( ALWAYS(pList) ){
        rc = pagerWalFrames(pPager, pList, pPager->dbSize, 1);
      }

    ** to a malloc() or IO failure), clear the bit in the pInJournal[]
    ** array. Otherwise, if the page is loaded and written again in
    ** this transaction, it may be written to the database file before
    ** it is synced into the journal file. This way, it may end up in
    ** the journal file twice, but that is not a problem.
    */
    PgHdr *pPgHdr;
    rc = sqlite3PagerGet(pPager, needSyncPgno, &pPgHdr, 0);
    if( rc!=SQLITE_OK ){
      if( needSyncPgno<=pPager->dbOrigSize ){
        assert( pPager->pTmpSpace!=0 );
        sqlite3BitvecClear(pPager->pInJournal, needSyncPgno, pPager->pTmpSpace);
      }
      return rc;
    }

#define PAGER_JOURNALMODE_PERSIST     1   /* Commit by zeroing journal header */
#define PAGER_JOURNALMODE_OFF         2   /* Journal omitted.  */
#define PAGER_JOURNALMODE_TRUNCATE    3   /* Commit by truncating journal */
#define PAGER_JOURNALMODE_MEMORY      4   /* In-memory journal file */
#define PAGER_JOURNALMODE_WAL         5   /* Use write-ahead logging */

/*
** Flags that make up the mask passed to sqlite3PagerGet().
*/
#define PAGER_GET_NOCONTENT     0x01  /* Do not load data from disk */
#define PAGER_GET_READONLY      0x02  /* Read-only page is acceptable */

/*
** Flags for sqlite3PagerSetFlags()
*/

int sqlite3PagerGetJournalMode(Pager*);
int sqlite3PagerOkToChangeJournalMode(Pager*);
i64 sqlite3PagerJournalSizeLimit(Pager *, i64);
sqlite3_backup **sqlite3PagerBackupPtr(Pager*);
int sqlite3PagerFlush(Pager*);

/* Functions used to obtain and release page references. */ 
int sqlite3PagerGet(Pager *pPager, Pgno pgno, DbPage **ppPage, int clrFlag);

DbPage *sqlite3PagerLookup(Pager *pPager, Pgno pgno);
void sqlite3PagerRef(DbPage*);
void sqlite3PagerUnref(DbPage*);
void sqlite3PagerUnrefNotNull(DbPage*);

/* Operations on page references. */
int sqlite3PagerWrite(DbPage*);

  u16 nXField;        /* Number of columns beyond the key columns */
  sqlite3 *db;        /* The database connection */
  u8 *aSortOrder;     /* Sort order for each column. */
  CollSeq *aColl[1];  /* Collating sequence for each term of the key */
};

/*

** This object holds a record which has been parsed out into individual
** fields, for the purposes of doing a comparison.
**
** A record is an object that contains one or more fields of data.
** Records are used to store the content of a table row and to store
** the key of an index.  A blob encoding of a record is created by
** the OP_MakeRecord opcode of the VDBE and is disassembled by the
** OP_Column opcode.
**
** An instance of this object serves as a "key" for doing a search on
** an index b+tree. The goal of the search is to find the entry that
** is closed to the key described by this object.  This object might hold
** just a prefix of the key.  The number of fields is given by
** pKeyInfo->nField.
**
** The r1 and r2 fields are the values to return if this key is less than
** or greater than a key in the btree, respectively.  These are normally
** -1 and +1 respectively, but might be inverted to +1 and -1 if the b-tree
** is in DESC order.
**
** The key comparison functions actually return default_rc when they find
** an equals comparison.  default_rc can be -1, 0, or +1.  If there are
** multiple entries in the b-tree with the same key (when only looking
** at the first pKeyInfo->nFields,) then default_rc can be set to -1 to 
** cause the search to find the last match, or +1 to cause the search to
** find the first match.
**
** The key comparison functions will set eqSeen to true if they ever
** get and equal results when comparing this structure to a b-tree record.
** When default_rc!=0, the search might end up on the record immediately
** before the first match or immediately after the last match.  The
** eqSeen field will indicate whether or not an exact match exists in the
** b-tree.
*/
struct UnpackedRecord {
  KeyInfo *pKeyInfo;  /* Collation and sort-order information */
  Mem *aMem;          /* Values */
  u16 nField;         /* Number of entries in apMem[] */
  i8 default_rc;      /* Comparison result if keys are equal */
  u8 errCode;         /* Error detected by xRecordCompare (CORRUPT or NOMEM) */

  i8 r1;              /* Value to return if (lhs > rhs) */
  i8 r2;              /* Value to return if (rhs < lhs) */
  u8 eqSeen;          /* True if an equality comparison has been seen */
};


/*
** Each SQL index is represented in memory by an
** instance of the following structure.
**

#ifdef SQLITE_ENABLE_STMT_SCANSTATUS
     { "sqlite3_stmt_scanstatus",       test_stmt_scanstatus,   0 },
     { "sqlite3_stmt_scanstatus_reset", test_stmt_scanstatus_reset,   0 },
#endif

  };
  static int bitmask_size = sizeof(Bitmask)*8;
  static int longdouble_size = sizeof(LONGDOUBLE_TYPE);
  int i;
  extern int sqlite3_sync_count, sqlite3_fullsync_count;
  extern int sqlite3_opentemp_count;
  extern int sqlite3_like_count;
  extern int sqlite3_xferopt_count;
  extern int sqlite3_pager_readdb_count;
  extern int sqlite3_pager_writedb_count;

      (char*)&sqlite_static_bind_nbyte, TCL_LINK_INT);
  Tcl_LinkVar(interp, "sqlite_temp_directory",
      (char*)&sqlite3_temp_directory, TCL_LINK_STRING);
  Tcl_LinkVar(interp, "sqlite_data_directory",
      (char*)&sqlite3_data_directory, TCL_LINK_STRING);
  Tcl_LinkVar(interp, "bitmask_size",
      (char*)&bitmask_size, TCL_LINK_INT|TCL_LINK_READ_ONLY);
  Tcl_LinkVar(interp, "longdouble_size",
      (char*)&longdouble_size, TCL_LINK_INT|TCL_LINK_READ_ONLY);
  Tcl_LinkVar(interp, "sqlite_sync_count",
      (char*)&sqlite3_sync_count, TCL_LINK_INT);
  Tcl_LinkVar(interp, "sqlite_fullsync_count",
      (char*)&sqlite3_fullsync_count, TCL_LINK_INT);
#if defined(SQLITE_ENABLE_FTS3) && defined(SQLITE_TEST)
  Tcl_LinkVar(interp, "sqlite_fts3_enable_parentheses",
      (char*)&sqlite3_fts3_enable_parentheses, TCL_LINK_INT);
#endif
  return TCL_OK;
}

       " ID PGNO\"", 0);
    return TCL_ERROR;
  }
  pPager = sqlite3TestTextToPtr(argv[1]);
  if( Tcl_GetInt(interp, argv[2], &pgno) ) return TCL_ERROR;
  rc = sqlite3PagerSharedLock(pPager);
  if( rc==SQLITE_OK ){
    rc = sqlite3PagerGet(pPager, pgno, &pPage, 0);
  }
  if( rc!=SQLITE_OK ){
    Tcl_AppendResult(interp, sqlite3ErrName(rc), 0);
    return TCL_ERROR;
  }
  sqlite3_snprintf(sizeof(zBuf),zBuf,"%p",pPage);
  Tcl_AppendResult(interp, zBuf, 0);

** use the value in register P3 as the key.  If cursor P1 refers 
** to an SQL index, then P3 is the first in an array of P4 registers 
** that are used as an unpacked index key. 
**
** Reposition cursor P1 so that  it points to the smallest entry that 
** is greater than or equal to the key value. If there are no records 
** greater than or equal to the key and P2 is not zero, then jump to P2.
**
** If the cursor P1 was opened using the OPFLAG_SEEKEQ flag, then this
** opcode will always land on a record that equally equals the key, or
** else jump immediately to P2.  When the cursor is OPFLAG_SEEKEQ, this
** opcode must be followed by an IdxLE opcode with the same arguments.
** The IdxLE opcode will be skipped if this opcode succeeds, but the
** IdxLE opcode will be used on subsequent loop iterations.
**
** This opcode leaves the cursor configured to move in forward order,
** from the beginning toward the end.  In other words, the cursor is
** configured to use Next, not Prev.
**
** See also: Found, NotFound, SeekLt, SeekGt, SeekLe
*/

** is less than or equal to the key value. If there are no records 
** less than or equal to the key and P2 is not zero, then jump to P2.
**
** This opcode leaves the cursor configured to move in reverse order,
** from the end toward the beginning.  In other words, the cursor is
** configured to use Prev, not Next.
**
** If the cursor P1 was opened using the OPFLAG_SEEKEQ flag, then this
** opcode will always land on a record that equally equals the key, or
** else jump immediately to P2.  When the cursor is OPFLAG_SEEKEQ, this
** opcode must be followed by an IdxGE opcode with the same arguments.
** The IdxGE opcode will be skipped if this opcode succeeds, but the
** IdxGE opcode will be used on subsequent loop iterations.
**
** See also: Found, NotFound, SeekGt, SeekGe, SeekLt
*/
case OP_SeekLT:         /* jump, in3 */
case OP_SeekLE:         /* jump, in3 */
case OP_SeekGE:         /* jump, in3 */
case OP_SeekGT: {       /* jump, in3 */
  int res;           /* Comparison result */
  int oc;            /* Opcode */
  VdbeCursor *pC;    /* The cursor to seek */
  UnpackedRecord r;  /* The key to seek for */
  int nField;        /* Number of columns or fields in the key */
  i64 iKey;          /* The rowid we are to seek to */
  int eqOnly;        /* Only interested in == results */

  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  assert( pOp->p2!=0 );
  pC = p->apCsr[pOp->p1];
  assert( pC!=0 );
  assert( pC->pseudoTableReg==0 );
  assert( OP_SeekLE == OP_SeekLT+1 );
  assert( OP_SeekGE == OP_SeekLT+2 );
  assert( OP_SeekGT == OP_SeekLT+3 );
  assert( pC->isOrdered );
  assert( pC->pCursor!=0 );
  oc = pOp->opcode;
  eqOnly = 0;
  pC->nullRow = 0;
#ifdef SQLITE_DEBUG
  pC->seekOp = pOp->opcode;
#endif

  if( pC->isTable ){
    /* The BTREE_SEEK_EQ flag is only set on index cursors */




    assert( sqlite3BtreeCursorHasHint(pC->pCursor, BTREE_SEEK_EQ)==0 );










    /* The input value in P3 might be of any type: integer, real, string,
    ** blob, or NULL.  But it needs to be an integer before we can do
    ** the seek, so convert it. */
    pIn3 = &aMem[pOp->p3];
    if( (pIn3->flags & (MEM_Int|MEM_Real|MEM_Str))==MEM_Str ){
      applyNumericAffinity(pIn3, 0);
    }

    } 
    rc = sqlite3BtreeMovetoUnpacked(pC->pCursor, 0, (u64)iKey, 0, &res);
    pC->movetoTarget = iKey;  /* Used by OP_Delete */
    if( rc!=SQLITE_OK ){
      goto abort_due_to_error;
    }
  }else{
    /* For a cursor with the BTREE_SEEK_EQ hint, only the OP_SeekGE and
    ** OP_SeekLE opcodes are allowed, and these must be immediately followed
    ** by an OP_IdxGT or OP_IdxLT opcode, respectively, with the same key.
    */
    if( sqlite3BtreeCursorHasHint(pC->pCursor, BTREE_SEEK_EQ) ){
      eqOnly = 1;
      assert( pOp->opcode==OP_SeekGE || pOp->opcode==OP_SeekLE );
      assert( pOp[1].opcode==OP_IdxLT || pOp[1].opcode==OP_IdxGT );
      assert( pOp[1].p1==pOp[0].p1 );
      assert( pOp[1].p2==pOp[0].p2 );
      assert( pOp[1].p3==pOp[0].p3 );
      assert( pOp[1].p4.i==pOp[0].p4.i );
    }

    nField = pOp->p4.i;
    assert( pOp->p4type==P4_INT32 );
    assert( nField>0 );
    r.pKeyInfo = pC->pKeyInfo;
    r.nField = (u16)nField;

    /* The next line of code computes as follows, only faster:

    assert( oc!=OP_SeekLT || r.default_rc==+1 );

    r.aMem = &aMem[pOp->p3];
#ifdef SQLITE_DEBUG
    { int i; for(i=0; i<r.nField; i++) assert( memIsValid(&r.aMem[i]) ); }
#endif
    ExpandBlob(r.aMem);
    r.eqSeen = 0;
    rc = sqlite3BtreeMovetoUnpacked(pC->pCursor, &r, 0, 0, &res);
    if( rc!=SQLITE_OK ){
      goto abort_due_to_error;
    }
    if( eqOnly && r.eqSeen==0 ){
      assert( res!=0 );
      goto seek_not_found;
    }
  }
  pC->deferredMoveto = 0;
  pC->cacheStatus = CACHE_STALE;
#ifdef SQLITE_TEST
  sqlite3_search_count++;
#endif

    }else{
      /* res might be negative because the table is empty.  Check to
      ** see if this is the case.
      */
      res = sqlite3BtreeEof(pC->pCursor);
    }
  }
seek_not_found:
  assert( pOp->p2>0 );
  VdbeBranchTaken(res!=0,2);
  if( res ){
    goto jump_to_p2;
  }else if( eqOnly ){
    assert( pOp[1].opcode==OP_IdxLT || pOp[1].opcode==OP_IdxGT );
    pOp++; /* Skip the OP_IdxLt or OP_IdxGT that follows */
  }
  break;
}

/* Opcode: Seek P1 P2 * * *
** Synopsis:  intkey=r[P2]
**

      testcase( pMem->u.i<0 );
      return 3;
    }
    case 4: { /* 4-byte signed integer */
      /* EVIDENCE-OF: R-01849-26079 Value is a big-endian 32-bit
      ** twos-complement integer. */
      pMem->u.i = FOUR_BYTE_INT(buf);
#ifdef __HP_cc 
      /* Work around a sign-extension bug in the HP compiler for HP/UX */
      if( buf[0]&0x80 ) pMem->u.i |= 0xffffffff80000000LL;
#endif
      pMem->flags = MEM_Int;
      testcase( pMem->u.i<0 );
      return 4;
    }
    case 5: { /* 6-byte signed integer */
      /* EVIDENCE-OF: R-50385-09674 Value is a big-endian 48-bit
      ** twos-complement integer. */

*/
static SQLITE_NOINLINE int sqlite3BlobCompare(const Mem *pB1, const Mem *pB2){
  int c = memcmp(pB1->z, pB2->z, pB1->n>pB2->n ? pB2->n : pB1->n);
  if( c ) return c;
  return pB1->n - pB2->n;
}

/*
** Do a comparison between a 64-bit signed integer and a 64-bit floating-point
** number.  Return negative, zero, or positive if the first (i64) is less than,
** equal to, or greater than the second (double).
*/
static int sqlite3IntFloatCompare(i64 i, double r){
  if( sizeof(LONGDOUBLE_TYPE)>8 ){
    LONGDOUBLE_TYPE x = (LONGDOUBLE_TYPE)i;
    if( x<r ) return -1;
    if( x>r ) return +1;
    return 0;
  }else{
    i64 y;
    double s;
    if( r<-9223372036854775808.0 ) return +1;
    if( r>9223372036854775807.0 ) return -1;
    y = (i64)r;
    if( i<y ) return -1;
    if( i>y ){
      if( y==SMALLEST_INT64 && r>0.0 ) return -1;
      return +1;
    }
    s = (double)i;
    if( s<r ) return -1;
    if( s>r ) return +1;
    return 0;
  }
}

/*
** Compare the values contained by the two memory cells, returning
** negative, zero or positive if pMem1 is less than, equal to, or greater
** than pMem2. Sorting order is NULL's first, followed by numbers (integers
** and reals) sorted numerically, followed by text ordered by the collating
** sequence pColl and finally blob's ordered by memcmp().

  /* If one value is NULL, it is less than the other. If both values
  ** are NULL, return 0.
  */
  if( combined_flags&MEM_Null ){
    return (f2&MEM_Null) - (f1&MEM_Null);
  }

  /* At least one of the two values is a number


  */
  if( combined_flags&(MEM_Int|MEM_Real) ){

    if( (f1 & f2 & MEM_Int)!=0 ){
      if( pMem1->u.i < pMem2->u.i ) return -1;
      if( pMem1->u.i > pMem2->u.i ) return +1;
      return 0;
    }
    if( (f1 & f2 & MEM_Real)!=0 ){
      if( pMem1->u.r < pMem2->u.r ) return -1;
      if( pMem1->u.r > pMem2->u.r ) return +1;
      return 0;
    }
    if( (f1&MEM_Int)!=0 ){
      if( (f2&MEM_Real)!=0 ){
        return sqlite3IntFloatCompare(pMem1->u.i, pMem2->u.r);
      }else{
        return -1;
      }
    }
    if( (f1&MEM_Real)!=0 ){

      if( (f2&MEM_Int)!=0 ){
        return -sqlite3IntFloatCompare(pMem2->u.i, pMem1->u.r);
      }else{
        return -1;
      }


    }
    return +1;
  }

  /* If one value is a string and the other is a blob, the string is less.
  ** If both are strings, compare using the collating functions.
  */
  if( combined_flags&MEM_Str ){
    if( (f1 & MEM_Str)==0 ){

      serial_type = aKey1[idx1];
      testcase( serial_type==12 );
      if( serial_type>=10 ){
        rc = +1;
      }else if( serial_type==0 ){
        rc = -1;
      }else if( serial_type==7 ){

        sqlite3VdbeSerialGet(&aKey1[d1], serial_type, &mem1);

        rc = -sqlite3IntFloatCompare(pRhs->u.i, mem1.u.r);



      }else{
        i64 lhs = vdbeRecordDecodeInt(serial_type, &aKey1[d1]);
        i64 rhs = pRhs->u.i;
        if( lhs<rhs ){
          rc = -1;
        }else if( lhs>rhs ){
          rc = +1;

        ** numbers). Types 10 and 11 are currently "reserved for future 
        ** use", so it doesn't really matter what the results of comparing
        ** them to numberic values are.  */
        rc = +1;
      }else if( serial_type==0 ){
        rc = -1;
      }else{


        sqlite3VdbeSerialGet(&aKey1[d1], serial_type, &mem1);
        if( serial_type==7 ){
          if( mem1.u.r<pRhs->u.r ){




            rc = -1;
          }else if( mem1.u.r>pRhs->u.r ){
            rc = +1;
          }
        }else{
          rc = sqlite3IntFloatCompare(mem1.u.i, pRhs->u.r);
        }
      }
    }

    /* RHS is a string */
    else if( pRhs->flags & MEM_Str ){
      getVarint32(&aKey1[idx1], serial_type);

  /* rc==0 here means that one or both of the keys ran out of fields and
  ** all the fields up to that point were equal. Return the default_rc
  ** value.  */
  assert( CORRUPT_DB 
       || vdbeRecordCompareDebug(nKey1, pKey1, pPKey2, pPKey2->default_rc) 
       || pKeyInfo->db->mallocFailed
  );
  pPKey2->eqSeen = 1;
  return pPKey2->default_rc;
}
int sqlite3VdbeRecordCompare(
  int nKey1, const void *pKey1,   /* Left key */
  UnpackedRecord *pPKey2          /* Right key */
){
  return sqlite3VdbeRecordCompareWithSkip(nKey1, pKey1, pPKey2, 0);

    /* The first fields of the two keys are equal. Compare the trailing 
    ** fields.  */
    res = sqlite3VdbeRecordCompareWithSkip(nKey1, pKey1, pPKey2, 1);
  }else{
    /* The first fields of the two keys are equal and there are no trailing
    ** fields. Return pPKey2->default_rc in this case. */
    res = pPKey2->default_rc;
    pPKey2->eqSeen = 1;
  }

  assert( vdbeRecordCompareDebug(nKey1, pKey1, pPKey2, res) );
  return res;
}

/*
** This function is an optimized version of sqlite3VdbeRecordCompare() 
** that (a) the first field of pPKey2 is a string, that (b) the first field
** uses the collation sequence BINARY and (c) that the size-of-header varint 
** at the start of (pKey1/nKey1) fits in a single byte.
*/
static int vdbeRecordCompareString(
  int nKey1, const void *pKey1, /* Left key */
  UnpackedRecord *pPKey2        /* Right key */
){
  const u8 *aKey1 = (const u8*)pKey1;
  int serial_type;
  int res;

  assert( pPKey2->aMem[0].flags & MEM_Str );
  vdbeAssertFieldCountWithinLimits(nKey1, pKey1, pPKey2->pKeyInfo);
  getVarint32(&aKey1[1], serial_type);
  if( serial_type<12 ){
    res = pPKey2->r1;      /* (pKey1/nKey1) is a number or a null */
  }else if( !(serial_type & 0x01) ){ 
    res = pPKey2->r2;      /* (pKey1/nKey1) is a blob */
  }else{

    if( res==0 ){
      res = nStr - pPKey2->aMem[0].n;
      if( res==0 ){
        if( pPKey2->nField>1 ){
          res = sqlite3VdbeRecordCompareWithSkip(nKey1, pKey1, pPKey2, 1);
        }else{
          res = pPKey2->default_rc;
          pPKey2->eqSeen = 1;
        }
      }else if( res>0 ){
        res = pPKey2->r2;
      }else{
        res = pPKey2->r1;
      }
    }else if( res>0 ){

# 
# Tests of the sqlite3AtoF() function.
#

set testdir [file dirname $argv0]
source $testdir/tester.tcl

if {$::longdouble_size<=8} {
  finish_test
  return
}

expr srand(1)
for {set i 1} {$i<20000} {incr i} {
  set pow [expr {int((rand()-0.5)*100)}]

proc bc_find_binaries {zCaption} {
  # Search for binaries to test against. Any executable files that match
  # our naming convention are assumed to be testfixture binaries to test
  # against.
  #
  set binaries [list]
  set self [file tail [info nameofexec]]
  set pattern "$self?*"
  if {$::tcl_platform(platform)=="windows"} {
    set pattern [string map {\.exe {}} $pattern]
  }
  foreach file [glob -nocomplain $pattern] {
    if {$file==$self} continue
    if {[file executable $file] && [file isfile $file]} {lappend binaries $file}
  }

  if {[llength $binaries]==0} {
    puts "WARNING: No historical binaries to test against."
    puts "WARNING: Omitting backwards-compatibility tests"
  }

do_test collate4-2.1.2 {
  execsql {
    CREATE INDEX collate4i1 ON collate4t1(a);
  }
  count {
    SELECT * FROM collate4t2, collate4t1 WHERE a = b;
  }
} {A a A A 4}
do_test collate4-2.1.3 {
  count {
    SELECT * FROM collate4t2, collate4t1 WHERE b = a;
  }
} {A A 19}
do_test collate4-2.1.4 {
  execsql {
    DROP INDEX collate4i1;
    CREATE INDEX collate4i1 ON collate4t1(a COLLATE TEXT);
  }
  count {
    SELECT * FROM collate4t2, collate4t1 WHERE a = b
     ORDER BY collate4t2.rowid, collate4t1.rowid
  }
} {A a A A 19}
do_test collate4-2.1.5 {
  count {
    SELECT * FROM collate4t2, collate4t1 WHERE b = a;
  }
} {A A 3}
ifcapable subquery {
  do_test collate4-2.1.6 {
    count {
      SELECT a FROM collate4t1 WHERE a IN (SELECT * FROM collate4t2)
       ORDER BY rowid
    }
  } {a A 10}
  do_test collate4-2.1.7 {
    execsql {
      DROP INDEX collate4i1;
      CREATE INDEX collate4i1 ON collate4t1(a);
    }
    count {
      SELECT a FROM collate4t1 WHERE a IN (SELECT * FROM collate4t2)
       ORDER BY rowid
    }
  } {a A 5}
  do_test collate4-2.1.8 {
    count {
      SELECT a FROM collate4t1 WHERE a IN ('z', 'a');
    }
  } {a A 4}
  do_test collate4-2.1.9 {
    execsql {
      DROP INDEX collate4i1;
      CREATE INDEX collate4i1 ON collate4t1(a COLLATE TEXT);
    }
    count {
      SELECT a FROM collate4t1 WHERE a IN ('z', 'a') ORDER BY rowid;

  tvfs filter xOpen
  tvfs script parse_uri_open_cb

  set ::uri_open [list]
  set DB [sqlite3_open_v2 $uri {
    SQLITE_OPEN_READWRITE SQLITE_OPEN_CREATE SQLITE_OPEN_WAL
  } tvfs]
  set fileName [sqlite3_db_filename $DB main]
  sqlite3_close $DB
  forcedelete $fileName
  tvfs delete
  tvfs2 delete

  set ::uri_open
}
proc parse_uri_open_cb {method file arglist} {
  set ::uri_open [list $file $arglist]

# 2015-11-06
#
# The author disclaims copyright to this source code.  In place of
# a legal notice, here is a blessing:
#
#    May you do good and not evil.
#    May you find forgiveness for yourself and forgive others.
#    May you share freely, never taking more than you give.
#
#***********************************************************************
# 
# Tests of the iee754 extension
#

set testdir [file dirname $argv0]
source $testdir/tester.tcl

load_static_extension db ieee754

foreach {id float rep} {
   1       1.0                            1,0
   2       2.0                            2,0
   3       0.5                            1,-1
   4       1.5                            3,-1
   5       0.0                            0,-1075
   6       4.9406564584124654e-324        4503599627370497,-1075
   7       2.2250738585072009e-308        9007199254740991,-1075
   8       2.2250738585072014e-308        1,-1022
} {
  do_test ieee754-100-$id-1 {
    db eval "SELECT ieee754($float);"
  } "ieee754($rep)"
  do_test ieee754-100-$id-2 {
    db eval "SELECT ieee754($rep)==$float;"
  } {1}
  if {$float!=0.0} {
    do_test ieee754-100-$id-3 {
      db eval "SELECT ieee754(-$float);"
    } "ieee754(-$rep)"
    do_test ieee754-100-$id-4 {
      db eval "SELECT ieee754(-$rep)==-$float;"
    } {1}
  }
}

do_execsql_test ieee754-110 {
  SELECT ieee754(1,1024), ieee754(4503599627370495,972);
} {Inf 1.79769313486232e+308}
do_execsql_test ieee754-111 {
  SELECT ieee754(-1,1024), ieee754(-4503599627370495,972);
} {-Inf -1.79769313486232e+308}
do_execsql_test ieee754-112 {
  SELECT ieee754(4503599627370495,973) is null;
} {1}

finish_test

# 2015-11-05
#
# The author disclaims copyright to this source code.  In place of
# a legal notice, here is a blessing:
#
#    May you do good and not evil.
#    May you find forgiveness for yourself and forgive others.
#    May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements tests for indexes on large numeric values.
#

set testdir [file dirname $argv0]
source $testdir/tester.tcl


# Test cases from Zsbán Ambrus:
#
do_execsql_test numindex1-1.1 {
  CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
  CREATE INDEX t1b ON t1(b);
  INSERT INTO t1(a,b) VALUES(100, 356282677878746339);
  INSERT INTO t1(a,b) VALUES(50, 356282677878746339.0);
  INSERT INTO t1(a,b) VALUES(0, 356282677878746340);
  DELETE FROM t1 WHERE a=50;
  PRAGMA integrity_check;
} {ok}

do_execsql_test numindex1-1.2 {
  CREATE TABLE t2(a,b);
  INSERT INTO t2(a,b) VALUES('b', 1<<58),
      ('c', (1<<58)+1e-7), ('d', (1<<58)+1);
  SELECT a, b, typeof(b), '|' FROM t2 ORDER BY +a;
} {b 288230376151711744 integer | c 2.88230376151712e+17 real | d 288230376151711745 integer |}

do_execsql_test numindex1-1.3 {
  SELECT x.a || CASE WHEN x.b==y.b THEN '==' ELSE '<>' END || y.a
    FROM t2 AS x, t2 AS y
   ORDER BY +x.a, +x.b;
} {b==b b==c b<>d c==b c==c c<>d d<>b d<>c d==d}

# New test cases
#
do_execsql_test numindex1-2.1 {
  DROP TABLE IF EXISTS t1;
  CREATE TABLE t1(a INTEGER PRIMARY KEY,b);
  CREATE INDEX t1b ON t1(b);
  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<100)
  INSERT INTO t1(a,b) SELECT x, 10000000000000004.0 FROM c
   WHERE x NOT IN (23,37);
  INSERT INTO t1(a,b) VALUES(23,10000000000000005);
  INSERT INTO t1(a,b) VALUES(37,10000000000000003);
  DELETE FROM t1 WHERE a NOT IN (23,37);
  PRAGMA integrity_check;
} {ok}

do_execsql_test numindex1-3.1 {
  DROP TABLE IF EXISTS t1;
  CREATE TABLE t1(a INTEGER PRIMARY KEY,b);
  CREATE INDEX t1b ON t1(b);
  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<20)
  INSERT INTO t1(a,b) SELECT x, 100000000000000005.0
    FROM c WHERE x NOT IN (3,5,7,11,13,17,19);
  INSERT INTO t1(a,b) VALUES(3,100000000000000005);
  INSERT INTO t1(a,b) VALUES(5,100000000000000000);
  INSERT INTO t1(a,b) VALUES(7,100000000000000008);
  INSERT INTO t1(a,b) VALUES(11,100000000000000006);
  INSERT INTO t1(a,b) VALUES(13,100000000000000001);
  INSERT INTO t1(a,b) VALUES(17,100000000000000004);
  INSERT INTO t1(a,b) VALUES(19,100000000000000003);
  PRAGMA integrity_check;
} {ok}

do_execsql_test numindex1-3.2 {
  SELECT a FROM t1 ORDER BY b;
} {1 2 4 5 6 8 9 10 12 14 15 16 18 20 13 19 17 3 11 7}

finish_test

test_suite "valgrind" -prefix "" -description {
  Run the "veryquick" test suite with a couple of multi-process tests (that
  fail under valgrind) omitted.
} -files [
  test_set $allquicktests -exclude *malloc* *ioerr* *fault* wal.test \
              shell*.test crash8.test atof1.test selectG.test \
              tkt-fc62af4523.test numindex1.test
] -initialize {
  set ::G(valgrind) 1
} -shutdown {
  unset -nocomplain ::G(valgrind)
}

test_suite "valgrind-nolookaside" -prefix "" -description {

#
test_suite "inmemory_journal" -description {
  Run tests with an in-memory journal file.
} -presql {
  pragma journal_mode = 'memory'
} -files [test_set $::allquicktests -exclude {
  # Exclude all tests that simulate IO errors.
  autovacuum_ioerr2.test cffault.test incrvacuum_ioerr.test ioerr.test
  ioerr.test ioerr2.test ioerr3.test ioerr4.test ioerr5.test
  vacuum3.test incrblob_err.test diskfull.test backup_ioerr.test
  e_fts3.test fts3cov.test fts3malloc.test fts3rnd.test
  fts3snippet.test mmapfault.test

  # Exclude test scripts that use tcl IO to access journal files or count
  # the number of fsync() calls.
  pager.test exclusive.test jrnlmode.test sync.test misc1.test 
  journal1.test conflict.test crash8.test tkt3457.test io.test
  journal3.test 8_3_names.test

  pager1.test async4.test corrupt.test filefmt.test pager2.test
  corrupt5.test corruptA.test pageropt.test

  # Exclude stmt.test, which expects sub-journals to use temporary files.
  stmt.test symlink.test

  zerodamage.test

  # WAL mode is different.
  wal* tkt-2d1a5c67d.test backcompat.test e_wal* rowallock.test
}]

    --quick                            (Run "veryquick.test" only)
    --veryquick                        (Run "make smoketest" only)
    --msvc                             (Use MSVC as the compiler)
    --buildonly                        (Just build testfixture - do not run)
    --dryrun                           (Print what would have happened)
    --info                             (Show diagnostic info)
    --with-tcl=DIR                     (Use TCL build at DIR)
    --jobs     N                       (Use N processes - default 1)
    --progress                         (Show progress messages)

The default value for --srcdir is the parent of the directory holding
this script.

The script determines the default value for --platform using the
$tcl_platform(os) and $tcl_platform(machine) variables.  Supported
platforms are "Linux-x86", "Linux-x86_64", "Darwin-i386",
"Darwin-x86_64", "Windows NT-intel", and "Windows NT-amd64".

Every test begins with a fresh run of the configure script at the top
of the SQLite source tree.
}

# Return a timestamp of the form HH:MM:SS
#
proc now {} {
  return [clock format [clock seconds] -format %H:%M:%S]
}

# Omit comments (text between # and \n) in a long multi-line string.
#
proc strip_comments {in} {
  regsub -all {#[^\n]*\n} $in {} out
  return $out
}

  "Fast-One" {
    -O6
    -DSQLITE_ENABLE_FTS4=1
    -DSQLITE_ENABLE_RTREE=1
    -DSQLITE_ENABLE_STAT4
    -DSQLITE_ENABLE_RBU
    -DSQLITE_MAX_ATTACHED=125
    -DLONGDOUBLE_TYPE=double
  }
  "Device-One" {
    -O2
    -DSQLITE_DEBUG=1
    -DSQLITE_DEFAULT_AUTOVACUUM=1
    -DSQLITE_DEFAULT_CACHE_SIZE=64
    -DSQLITE_DEFAULT_PAGE_SIZE=1024

  FuzzFail1 {-O0}
  FuzzFail2 {-O0}
}]

array set ::Platforms [strip_comments {
  Linux-x86_64 {
    "Check-Symbols"           checksymbols
    "Fast-One"                fuzztest
    "Debug-One"               "mptest test"
    "Have-Not"                test
    "Secure-Delete"           test
    "Unlock-Notify"           "QUICKTEST_INCLUDE=notify2.test test"
    "Update-Delete-Limit"     test
    "Extra-Robustness"        test
    "Device-Two"              test
    "No-lookaside"            test
    "Devkit"                  test
    "Sanitize"                {QUICKTEST_OMIT=func4.test,nan.test test}
    "Device-One"              fulltest

    "Default"                 "threadtest fulltest"
    "Valgrind"                valgrindtest
  }
  Linux-i686 {
    "Devkit"                  test
    "Have-Not"                test
    "Unlock-Notify"           "QUICKTEST_INCLUDE=notify2.test test"
    "Device-One"              test
    "Device-Two"              test
    "Default"                 "threadtest fulltest"
  }
  Darwin-i386 {
    "Locking-Style"           "mptest test"
    "Have-Not"                test
    "OS-X"                    "threadtest fulltest"
  }
  Darwin-x86_64 {
    "Locking-Style"           "mptest test"
    "Have-Not"                test
    "OS-X"                    "threadtest fulltest"
  }
  "Windows NT-intel" {

    "Have-Not"                test
    "Default"                 "mptest fulltestonly"
  }
  "Windows NT-amd64" {

    "Have-Not"                test
    "Default"                 "mptest fulltestonly"
  }

  # The Failure-Detection platform runs various tests that deliberately
  # fail.  This is used as a test of this script to verify that this script
  # correctly identifies failures.
  #
  Failure-Detection {

}]


# End of configuration section.
#########################################################################
#########################################################################

# Configuration verification: Check that each entry in the list of configs
# specified for each platforms exists.
#
foreach {key value} [array get ::Platforms] {
  foreach {v t} $value {
    if {0==[info exists ::Configs($v)]} {
      puts stderr "No such configuration: \"$v\""
      exit -1
    }
  }

        set rc 1
        set errmsg "version conflict: {$::SQLITE_VERSION} vs. {$v}"
      }
    }
  }
  close $fd
  if {$::BUILDONLY} {
    incr ::NTESTCASE
    if {$rc!=0} {


      set errmsg "Build failed"
    }
  } elseif {!$seen} {
    set rc 1
    set errmsg "Test did not complete"
    if {[file readable core]} {
      append errmsg " - core file exists"
    }
  }
}

#--------------------------------------------------------------------------
# This command is invoked as the [main] routine for scripts run with the
# "--slave" option.
#
# For each test (i.e. "configure && make test" execution), the master
# process spawns a process with the --slave option. It writes two lines
# to the slaves stdin. The first contains a single boolean value - the
# value of ::TRACE to use in the slave script. The second line contains a
# list in the same format as each element of the list passed to the
# [run_all_test_suites] command in the master process.
#
# The slave then runs the "configure && make test" commands specified. It
# exits successfully if the tests passes, or with a non-zero error code
# otherwise.
#
proc run_slave_test {} {
  # Read global vars configuration from stdin.
  set V [gets stdin]
  foreach {::TRACE ::MSVC ::DRYRUN} $V {}

  # Read the test-suite configuration from stdin.
  set T [gets stdin]
  foreach {title dir configOpts testtarget makeOpts cflags opts} $T {}

  # Create and switch to the test directory.
  trace_cmd file mkdir $dir
  trace_cmd cd $dir
  catch {file delete core}
  catch {file delete test.log}

  # Run the "./configure && make" commands.
  set rc 0
  set rc [catch [configureCommand $configOpts]]
  if {!$rc} {
    if {[info exists ::env(TCLSH_CMD)]} {
      set savedEnv(TCLSH_CMD) $::env(TCLSH_CMD)
    } else {
      unset -nocomplain savedEnv(TCLSH_CMD)
    }
    set ::env(TCLSH_CMD) [file nativename [info nameofexecutable]]
    set rc [catch [makeCommand $testtarget $makeOpts $cflags $opts]]
    if {[info exists savedEnv(TCLSH_CMD)]} {
      set ::env(TCLSH_CMD) $savedEnv(TCLSH_CMD)
    } else {
      unset -nocomplain ::env(TCLSH_CMD)
    }
  }

  # Exis successfully if the test passed, or with a non-zero error code
  # otherwise.
  exit $rc
}

# This command is invoked in the master process each time a slave
# file-descriptor is readable.
#
proc slave_fileevent {fd T tm1} {
  global G
  foreach {title dir configOpts testtarget makeOpts cflags opts} $T {}

  if {[eof $fd]} {
    fconfigure $fd -blocking 1
    set rc [catch { close $fd }]

    set errmsg {}
    set logfile [file join $dir test.log]
    if {[file exists $logfile]} {
      count_tests_and_errors [file join $dir test.log] rc errmsg
    } elseif {$rc==0 && !$::DRYRUN} {
      set rc 1
      set errmsg "no test.log file..."
    }

    if {!$::TRACE} {
      set tm2 [clock seconds]
      set hours [expr {($tm2-$tm1)/3600}]
      set minutes [expr {(($tm2-$tm1)/60)%60}]
      set seconds [expr {($tm2-$tm1)%60}]
      set tm [format (%02d:%02d:%02d) $hours $minutes $seconds]

      if {$rc} {
        set status FAIL
        incr ::NERR
      } else {
        set status Ok
      }

      set n [string length $title]
      if {$::PROGRESS_MSGS} {
        PUTS "finished: ${title}[string repeat . [expr {53-$n}]] $status $tm"
      } else {
        PUTS "${title}[string repeat . [expr {63-$n}]] $status $tm"
      }
      if {$errmsg!=""} {PUTS "     $errmsg"}
      flush stdout
    }

    incr G(nJob) -1
  } else {
    set line [gets $fd]
    if {[string trim $line] != ""} {
      puts "Trace   : $title - \"$line\""
    }
  }
}

#--------------------------------------------------------------------------
# The only argument passed to this function is a list of test-suites to
# run. Each "test-suite" is itself a list consisting of the following
# elements:
#
#   * Test title (for display).
#   * The name of the directory to run the test in.
#   * The argument for [configureCommand]
#   * The first argument for [makeCommand]
#   * The second argument for [makeCommand]
#   * The third argument for [makeCommand]
#
proc run_all_test_suites {alltests} {
  global G
  set tests $alltests

  set G(nJob) 0

  while {[llength $tests]>0 || $G(nJob)>0} {
    if {$G(nJob)>=$::JOBS || [llength $tests]==0} {
      vwait G(nJob)
    }

    if {[llength $tests]>0} {
      set T [lindex $tests 0]
      set tests [lrange $tests 1 end]
      foreach {title dir configOpts testtarget makeOpts cflags opts} $T {}
      if {$::PROGRESS_MSGS && !$::TRACE} {
        set n [string length $title]
        PUTS "starting: ${title} at [now]"
        flush stdout
      }

      # Run the job.
      #
      set tm1 [clock seconds]
      incr G(nJob)
      set script [file normalize [info script]]
      set fd [open "|[info nameofexecutable] $script --slave" r+]
      fconfigure $fd -blocking 0
      fileevent $fd readable [list slave_fileevent $fd $T $tm1]
      puts $fd [list $::TRACE $::MSVC $::DRYRUN]
      puts $fd [list {*}$T]
      flush $fd
    }
  }
}

proc add_test_suite {listvar name testtarget config} {
  upvar $listvar alltests

  # Tcl variable $opts is used to build up the value used to set the
  # OPTS Makefile variable. Variable $cflags holds the value for
  # CFLAGS. The makefile will pass OPTS to both gcc and lemon, but
  # CFLAGS is only passed to gcc.
  #
  set makeOpts ""
  set cflags [expr {$::MSVC ? "-Zi" : "-g"}]
  set opts ""
  set title ${name}($testtarget)
  set configOpts $::WITHTCL

  regsub -all {#[^\n]*\n} $config \n config
  foreach arg $config {
    if {[regexp {^-[UD]} $arg]} {
      lappend opts $arg
    } elseif {[regexp {^[A-Z]+=} $arg]} {
      lappend testtarget $arg
    } elseif {[regexp {^--(enable|disable)-} $arg]} {
      if {$::MSVC} {
        if {$arg eq "--disable-amalgamation"} {
          lappend makeOpts USE_AMALGAMATION=0
          continue
        }
        if {$arg eq "--disable-shared"} {
          lappend makeOpts USE_CRT_DLL=0 DYNAMIC_SHELL=0
          continue
        }
        if {$arg eq "--enable-fts5"} {
          lappend opts -DSQLITE_ENABLE_FTS5
          continue
        }
        if {$arg eq "--enable-json1"} {
          lappend opts -DSQLITE_ENABLE_JSON1
          continue
        }
        if {$arg eq "--enable-shared"} {
          lappend makeOpts USE_CRT_DLL=1 DYNAMIC_SHELL=1
          continue
        }
      }
      lappend configOpts $arg
    } else {
      if {$::MSVC} {
        if {$arg eq "-g"} {
          lappend cflags -Zi
          continue
        }
        if {[regexp -- {^-O(\d+)$} $arg all level]} then {
          lappend makeOpts OPTIMIZATIONS=$level
          continue
        }
      }
      lappend cflags $arg
    }
  }

  # Disable sync to make testing faster.

  #
  lappend opts -DSQLITE_NO_SYNC=1

  # Some configurations already set HAVE_USLEEP; in that case, skip it.
  #
  if {[lsearch -regexp $opts {^-DHAVE_USLEEP(?:=|$)}]==-1} {

    lappend opts -DHAVE_USLEEP=1
  }

  # Add the define for this platform.
  #


  if {$::tcl_platform(platform)=="windows"} {
    lappend opts -DSQLITE_OS_WIN=1
  } else {
    lappend opts -DSQLITE_OS_UNIX=1
  }


  # Set the sub-directory to use.



  #


  set dir [string tolower [string map {- _ " " _} $name]]











  # Join option lists into strings, using space as delimiter.
  #


  set makeOpts [join $makeOpts " "]



  set cflags   [join $cflags " "]


  set opts     [join $opts " "]



  lappend alltests [list \
      $title $dir $configOpts $testtarget $makeOpts $cflags $opts]
}

# The following procedure returns the "configure" command to be exectued for
# the current platform, which may be Windows (via MinGW, etc).
#
proc configureCommand {opts} {
  if {$::MSVC} return [list]; # This is not needed for MSVC.
  set result [list trace_cmd exec]
  if {$::tcl_platform(platform)=="windows"} {
    lappend result sh
  }
  lappend result $::SRCDIR/configure --enable-load-extension
  foreach x $opts {lappend result $x}
  lappend result >& test.log
}

# The following procedure returns the "make" command to be executed for the
# specified targets, compiler flags, and options.
#
proc makeCommand { targets makeOpts cflags opts } {
  set result [list trace_cmd exec]
  if {$::MSVC} {
    set nmakeDir [file nativename $::SRCDIR]
    set nmakeFile [file nativename [file join $nmakeDir Makefile.msc]]
    lappend result nmake /f $nmakeFile TOP=$nmakeDir
  } else {
    lappend result make
  }
  foreach makeOpt $makeOpts {
    lappend result $makeOpt
  }
  lappend result clean
  foreach target $targets {
    lappend result $target
  }
  lappend result CFLAGS=$cflags OPTS=$opts >>& test.log
}

# The following procedure prints its arguments if ::TRACE is true.
# And it executes the command of its arguments in the calling context
# if ::DRYRUN is false.
#
proc trace_cmd {args} {
  if {$::TRACE} {
    PUTS $args
  }
  set res ""
  if {!$::DRYRUN} {
    set res [uplevel 1 $args]
  }
  return $res
}


# This proc processes the command line options passed to this script.
# Currently the only option supported is "-makefile", default
# "releasetest.mk". Set the ::MAKEFILE variable to the value of this
# option.
#
proc process_options {argv} {
  set ::SRCDIR    [file normalize [file dirname [file dirname $::argv0]]]
  set ::QUICK          0
  set ::MSVC           0
  set ::BUILDONLY      0
  set ::DRYRUN         0

  set ::TRACE          0
  set ::JOBS           1
  set ::PROGRESS_MSGS  0
  set ::WITHTCL        {}
  set config {}
  set platform $::tcl_platform(os)-$::tcl_platform(machine)

  for {set i 0} {$i < [llength $argv]} {incr i} {
    set x [lindex $argv $i]
    if {[regexp {^--[a-z]} $x]} {set x [string range $x 1 end]}
    switch -glob -- $x {
      -slave {
        run_slave_test
        exit
      }

      -srcdir {
        incr i
        set ::SRCDIR [file normalize [lindex $argv $i]]
      }

      -platform {
        incr i
        set platform [lindex $argv $i]
      }

      -jobs {
        incr i
        set ::JOBS [lindex $argv $i]
      }

      -progress {
        set ::PROGRESS_MSGS 1
      }

      -quick {
        set ::QUICK 1
      }
      -veryquick {
        set ::QUICK 2
      }

        foreach y [lsort [array names ::Configs]] {
          PUTS "   [list $y]"
        }
        exit
      }

      -g {



        lappend ::EXTRACONFIG [lindex $argv $i]

      }

      -with-tcl=* {
        set ::WITHTCL -$x
      }

      -D* -

    exit
  }

  if {$config!=""} {
    if {[llength $config]==1} {lappend config fulltest}
    set ::CONFIGLIST $config
  } else {
    if {$::JOBS>1} {
      set ::CONFIGLIST {}
      foreach {target zConfig} [lreverse $::Platforms($platform)] {
        append ::CONFIGLIST [format "    %-25s %s\n" \
                               [list $zConfig] [list $target]]
      }
    } else {
      set ::CONFIGLIST $::Platforms($platform)
    }
  }
  PUTS "Running the following test configurations for $platform:"
  PUTS "    [string trim $::CONFIGLIST]"
  PUTS -nonewline "Flags:"
  if {$::PROGRESS_MSGS} {PUTS -nonewline " --progress"}
  if {$::DRYRUN} {PUTS -nonewline " --dryrun"}
  if {$::BUILDONLY} {PUTS -nonewline " --buildonly"}
  if {$::MSVC} {PUTS -nonewline " --msvc"}
  switch -- $::QUICK {
     1 {PUTS -nonewline " --quick"}
     2 {PUTS -nonewline " --veryquick"}
  }
  if {$::JOBS>1} {PUTS -nonewline " --jobs $::JOBS"}
  PUTS ""
}

# Main routine.
#
proc main {argv} {

    if {$target ne "checksymbols"} {
      switch -- $::QUICK {
         1 {set target quicktest}
         2 {set target smoketest}
      }
      if {$::BUILDONLY} {
        set target testfixture
        if {$::tcl_platform(platform)=="windows"} {
          append target .exe
        }
      }
    }
    set config_options [concat $::Configs($zConfig) $::EXTRACONFIG]

    incr NTEST
    add_test_suite all $zConfig $target $config_options

    # If the configuration included the SQLITE_DEBUG option, then remove
    # it and run veryquick.test. If it did not include the SQLITE_DEBUG option
    # add it and run veryquick.test.
    if {$target!="checksymbols" && $target!="valgrindtest"
           && $target!="fuzzoomtest" && !$::BUILDONLY && $::QUICK<2} {
      set debug_idx [lsearch -glob $config_options -DSQLITE_DEBUG*]
      set xtarget $target
      regsub -all {fulltest[a-z]*} $xtarget test xtarget
      regsub -all {fuzzoomtest} $xtarget fuzztest xtarget
      if {$debug_idx < 0} {
        incr NTEST
        append config_options " -DSQLITE_DEBUG=1"
        add_test_suite all "${zConfig}_debug" $xtarget $config_options
      } else {
        incr NTEST
        regsub { *-DSQLITE_MEMDEBUG[^ ]* *} $config_options { } config_options
        regsub { *-DSQLITE_DEBUG[^ ]* *} $config_options { } config_options
        add_test_suite all "${zConfig}_ndebug" $xtarget $config_options
      }
    }
  }

  run_all_test_suites $all

  set elapsetime [expr {[clock seconds]-$STARTTIME}]
  set hr [expr {$elapsetime/3600}]
  set min [expr {($elapsetime/60)%60}]
  set sec [expr {$elapsetime%60}]
  set etime [format (%02d:%02d:%02d) $hr $min $sec]
  PUTS [string repeat * 79]

      SELECT * FROM t1 WHERE rowid+0 IN (1,2,3,1234) order by 1;
    }
  } {1 0 4 2 1 9 3 1 16 102}
  do_test where-5.3a {
    count {
      SELECT * FROM t1 WHERE w IN (-1,1,2,3) order by 1;
    }
  } {1 0 4 2 1 9 3 1 16 12}
  do_test where-5.3b {
    count {
      SELECT * FROM t1 WHERE w IN (3,-1,1,2) order by 1;
    }
  } {1 0 4 2 1 9 3 1 16 12}
  do_test where-5.3c {
    count {
      SELECT * FROM t1 WHERE w IN (3,2,-1,1,2) order by 1;
    }
  } {1 0 4 2 1 9 3 1 16 12}
  do_test where-5.3d {
    count {
      SELECT * FROM t1 WHERE w IN (-1,1,2,3) order by 1 DESC;
    }
  } {3 1 16 2 1 9 1 0 4 11}
  do_test where-5.4 {
    count {
      SELECT * FROM t1 WHERE w+0 IN (-1,1,2,3) order by 1;
    }
  } {1 0 4 2 1 9 3 1 16 102}
  do_test where-5.5 {
    count {

      ORDER BY 1;
    }
  } {2 1 9 4 2 25 103}
  do_test where-5.9 {
    count {
      SELECT * FROM t1 WHERE x IN (1,7) ORDER BY 1;
    }
  } {2 1 9 3 1 16 6}
  do_test where-5.10 {
    count {
      SELECT * FROM t1 WHERE x+0 IN (1,7) ORDER BY 1;
    }
  } {2 1 9 3 1 16 199}
  do_test where-5.11 {
    count {
      SELECT * FROM t1 WHERE y IN (6400,8100) ORDER BY 1;
    }
  } {79 6 6400 89 6 8100 199}
  do_test where-5.12 {
    count {
      SELECT * FROM t1 WHERE x=6 AND y IN (6400,8100) ORDER BY 1;
    }
  } {79 6 6400 89 6 8100 7}
  do_test where-5.13 {
    count {
      SELECT * FROM t1 WHERE x IN (1,7) AND y NOT IN (6400,8100) ORDER BY 1;
    }
  } {2 1 9 3 1 16 6}
  do_test where-5.14 {
    count {
      SELECT * FROM t1 WHERE x IN (1,7) AND y IN (9,10) ORDER BY 1;
    }
  } {2 1 9 5}
  do_test where-5.15 {
    count {
      SELECT * FROM t1 WHERE x IN (1,7) AND y IN (9,16) ORDER BY 1;
    }
  } {2 1 9 3 1 16 9}
  do_test where-5.100 {
    db eval {
      SELECT w, x, y FROM t1 WHERE x IN (1,5) AND y IN (9,8,3025,1000,3969)
       ORDER BY x, y
    }
  } {2 1 9 54 5 3025 62 5 3969}
  do_test where-5.101 {

  count {SELECT rowid FROM t1 WHERE w='a' AND x IS NULL AND y='c'}
} {4 2}
do_test where4-1.10 {
  count {SELECT rowid FROM t1 WHERE w=x'78' AND x IS NULL}
} {6 2}
do_test where4-1.11 {
  count {SELECT rowid FROM t1 WHERE w=x'78' AND x IS NULL AND y=123}
} {0}
do_test where4-1.12 {
  count {SELECT rowid FROM t1 WHERE w=x'78' AND x IS NULL AND y=x'7A'}
} {6 2}
do_test where4-1.13 {
  count {SELECT rowid FROM t1 WHERE w IS NULL AND x IS NULL}
} {7 2}
do_test where4-1.14 {