Fossil

  sqlite3_finalize(pStmt);
  if( nRow==0 ){
    freeText(&s);
    s.z = 0;
  }
  return s.z;
}

/*
** SQL function:  strtod(X)
**
** Use the C-library strtod() function to convert string X into a double.
** Used for comparing the accuracy of SQLite's internal text-to-float conversion
** routines against the C-library.
*/
static void shellStrtod(
  sqlite3_context *pCtx,
  int nVal,
  sqlite3_value **apVal
){
  char *z = (char*)sqlite3_value_text(apVal[0]);
  UNUSED_PARAMETER(nVal);
  if( z==0 ) return;
  sqlite3_result_double(pCtx, strtod(z,0));
}

/*
** SQL function:  dtostr(X)
**
** Use the C-library printf() function to convert real value X into a string.
** Used for comparing the accuracy of SQLite's internal float-to-text conversion
** routines against the C-library.
*/
static void shellDtostr(
  sqlite3_context *pCtx,
  int nVal,
  sqlite3_value **apVal
){
  double r = sqlite3_value_double(apVal[0]);
  int n = nVal>=2 ? sqlite3_value_int(apVal[1]) : 26;
  char z[400];
  if( n<1 ) n = 1;
  if( n>350 ) n = 350;
  sprintf(z, "%#+.*e", n, r);
  sqlite3_result_text(pCtx, z, -1, SQLITE_TRANSIENT);
}


/*
** SQL function:  shell_module_schema(X)
**
** Return a fake schema for the table-valued function or eponymous virtual
** table X.
*/

  if( p ){
    decimal_clear(p);
    sqlite3_free(p);
  }
}

/*
** Allocate a new Decimal object initialized to the text in zIn[].
** Return NULL if any kind of error occurs.
*/
static Decimal *decimalNewFromText(const char *zIn, int n){





  Decimal *p = 0;
  int i;

  int iExp = 0;

  p = sqlite3_malloc( sizeof(*p) );
  if( p==0 ) goto new_from_text_failed;
  p->sign = 0;
  p->oom = 0;
  p->isInit = 1;
  p->isNull = 0;
  p->nDigit = 0;
  p->nFrac = 0;












  p->a = sqlite3_malloc64( n+1 );
  if( p->a==0 ) goto new_from_text_failed;
  for(i=0; isspace(zIn[i]); i++){}
  if( zIn[i]=='-' ){
    p->sign = 1;
    i++;
  }else if( zIn[i]=='+' ){
    i++;
  }

      }else{
        iExp -= p->nFrac;
        p->nFrac = 0;
      }
    }
    if( iExp>0 ){   
      p->a = sqlite3_realloc64(p->a, p->nDigit + iExp + 1 );
      if( p->a==0 ) goto new_from_text_failed;
      memset(p->a+p->nDigit, 0, iExp);
      p->nDigit += iExp;
    }
  }else if( iExp<0 ){
    int nExtra;
    iExp = -iExp;
    nExtra = p->nDigit - p->nFrac - 1;
    if( nExtra ){
      if( nExtra>=iExp ){
        p->nFrac += iExp;
        iExp  = 0;
      }else{
        iExp -= nExtra;
        p->nFrac = p->nDigit - 1;
      }
    }
    if( iExp>0 ){
      p->a = sqlite3_realloc64(p->a, p->nDigit + iExp + 1 );
      if( p->a==0 ) goto new_from_text_failed;
      memmove(p->a+iExp, p->a, p->nDigit);
      memset(p->a, 0, iExp);
      p->nDigit += iExp;
      p->nFrac += iExp;
    }
  }
  return p;

new_from_text_failed:
  if( p ){
    if( p->a ) sqlite3_free(p->a);
    sqlite3_free(p);
  }
  return 0;
}

/* Forward reference */
static Decimal *decimalFromDouble(double);

/*
** Allocate a new Decimal object from an sqlite3_value.  Return a pointer
** to the new object, or NULL if there is an error.  If the pCtx argument
** is not NULL, then errors are reported on it as well.
**
** If the pIn argument is SQLITE_TEXT or SQLITE_INTEGER, it is converted
** directly into a Decimal.  For SQLITE_FLOAT or for SQLITE_BLOB of length
** 8 bytes, the resulting double value is expanded into its decimal equivalent.
** If pIn is NULL or if it is a BLOB that is not exactly 8 bytes in length,
** then NULL is returned.
*/
static Decimal *decimal_new(
  sqlite3_context *pCtx,       /* Report error here, if not null */
  sqlite3_value *pIn,          /* Construct the decimal object from this */
  int bTextOnly                /* Always interpret pIn as text if true */
){
  Decimal *p = 0;
  int eType = sqlite3_value_type(pIn);
  if( bTextOnly && (eType==SQLITE_FLOAT || eType==SQLITE_BLOB) ){
    eType = SQLITE_TEXT;
  }
  switch( eType ){
    case SQLITE_TEXT:
    case SQLITE_INTEGER: {
      const char *zIn = (const char*)sqlite3_value_text(pIn);
      int n = sqlite3_value_bytes(pIn);
      p = decimalNewFromText(zIn, n);
      if( p==0 ) goto new_failed;
      break;
    }

    case SQLITE_FLOAT: {
      p = decimalFromDouble(sqlite3_value_double(pIn));
      break;
    }

    case SQLITE_BLOB: {
      const unsigned char *x;
      unsigned int i;
      sqlite3_uint64 v = 0;
      double r;

      if( sqlite3_value_bytes(pIn)!=sizeof(r) ) break;
      x = sqlite3_value_blob(pIn);
      for(i=0; i<sizeof(r); i++){
        v = (v<<8) | x[i];
      }
      memcpy(&r, &v, sizeof(r));
      p = decimalFromDouble(r);
      break;
    }

    case SQLITE_NULL: {
      break;
    }
  }
  return p;

new_failed:
  if( pCtx ) sqlite3_result_error_nomem(pCtx);
  sqlite3_free(p);
  return 0;
}

/*
** Make the given Decimal the result.

    }while( j<p->nDigit );
  }
  z[i] = 0;
  sqlite3_result_text(pCtx, z, i, sqlite3_free);
}

/*
** Make the given Decimal the result in an format similar to  '%+#e'.
** In other words, show exponential notation with leading and trailing
** zeros omitted.

*/
static void decimal_result_sci(sqlite3_context *pCtx, Decimal *p){
  char *z;       /* The output buffer */
  int i;         /* Loop counter */
  int nZero;     /* Number of leading zeros */
  int nDigit;    /* Number of digits not counting trailing zeros */
  int nFrac;     /* Digits to the right of the decimal point */
  int exp;       /* Exponent value */
  signed char zero;     /* Zero value */
  signed char *a;       /* Array of digits */

  if( p==0 || p->oom ){
    sqlite3_result_error_nomem(pCtx);
    return;
  }
  if( p->isNull ){
    sqlite3_result_null(pCtx);
    return;
  }
  for(nDigit=p->nDigit; nDigit>0 && p->a[nDigit-1]==0; nDigit--){}
  for(nZero=0; nZero<nDigit && p->a[nZero]==0; nZero++){}
  nFrac = p->nFrac + (nDigit - p->nDigit);
  nDigit -= nZero;
  z = sqlite3_malloc( nDigit+20 );
  if( z==0 ){


    sqlite3_result_error_nomem(pCtx);
    return;
  }
  if( nDigit==0 ){
    zero = 0;
    a = &zero;
    nDigit = 1;
    nFrac = 0;
  }else{
    a = &p->a[nZero];
  }
  if( p->sign && nDigit>0 ){
    z[0] = '-';
  }else{
    z[0] = '+';
  }
  z[1] = a[0]+'0';
  z[2] = '.';
  if( nDigit==1 ){
    z[3] = '0';
    i = 4;
  }else{
    for(i=1; i<nDigit; i++){
      z[2+i] = a[i]+'0';
    }
    i = nDigit+2;
  }
  exp = nDigit - nFrac - 1;
  sqlite3_snprintf(nDigit+20-i, &z[i], "e%+03d", exp);
  sqlite3_result_text(pCtx, z, -1, sqlite3_free);
}

/*
** Compare to Decimal objects.  Return negative, 0, or positive if the
** first object is less than, equal to, or greater than the second.
**
** Preconditions for this routine:

  int argc,
  sqlite3_value **argv
){
  Decimal *pA = 0, *pB = 0;
  int rc;

  UNUSED_PARAMETER(argc);
  pA = decimal_new(context, argv[0], 1);
  if( pA==0 || pA->isNull ) goto cmp_done;
  pB = decimal_new(context, argv[1], 1);
  if( pB==0 || pB->isNull ) goto cmp_done;
  rc = decimal_cmp(pA, pB);
  if( rc<0 ) rc = -1;
  else if( rc>0 ) rc = +1;
  sqlite3_result_int(context, rc);
cmp_done:
  decimal_free(pA);

    memset(p->a+p->nDigit, 0, nAddFrac);
    p->nDigit += nAddFrac;
    p->nFrac += nAddFrac;
  }
}

/*
** Add the value pB into pA.   A := A + B.
**
** Both pA and pB might become denormalized by this routine.
*/
static void decimal_add(Decimal *pA, Decimal *pB){
  int nSig, nFrac, nDigit;
  int i, rc;
  if( pA==0 ){

          pA->a[i] = x;
          borrow = 0;
        }
      }
    }
  }
}

/*
** Multiply A by B.   A := A * B
**
** All significant digits after the decimal point are retained.
** Trailing zeros after the decimal point are omitted as long as
** the number of digits after the decimal point is no less than
** either the number of digits in either input.
*/
static void decimalMul(Decimal *pA, Decimal *pB){
  signed char *acc = 0;
  int i, j, k;
  int minFrac;

  if( pA==0 || pA->oom || pA->isNull
   || pB==0 || pB->oom || pB->isNull 
  ){
    goto mul_end;
  }
  acc = sqlite3_malloc64( pA->nDigit + pB->nDigit + 2 );
  if( acc==0 ){
    pA->oom = 1;
    goto mul_end;
  }
  memset(acc, 0, pA->nDigit + pB->nDigit + 2);
  minFrac = pA->nFrac;
  if( pB->nFrac<minFrac ) minFrac = pB->nFrac;
  for(i=pA->nDigit-1; i>=0; i--){
    signed char f = pA->a[i];
    int carry = 0, x;
    for(j=pB->nDigit-1, k=i+j+3; j>=0; j--, k--){
      x = acc[k] + f*pB->a[j] + carry;
      acc[k] = x%10;
      carry = x/10;
    }
    x = acc[k] + carry;
    acc[k] = x%10;
    acc[k-1] += x/10;
  }
  sqlite3_free(pA->a);
  pA->a = acc;
  acc = 0;
  pA->nDigit += pB->nDigit + 2;
  pA->nFrac += pB->nFrac;
  pA->sign ^= pB->sign;
  while( pA->nFrac>minFrac && pA->a[pA->nDigit-1]==0 ){
    pA->nFrac--;
    pA->nDigit--;
  }

mul_end:
  sqlite3_free(acc);
}

/*
** Create a new Decimal object that contains an integer power of 2.
*/
static Decimal *decimalPow2(int N){
  Decimal *pA = 0;      /* The result to be returned */
  Decimal *pX = 0;      /* Multiplier */
  if( N<-20000 || N>20000 ) goto pow2_fault;
  pA = decimalNewFromText("1.0", 3);
  if( pA==0 || pA->oom ) goto pow2_fault;
  if( N==0 ) return pA;
  if( N>0 ){
    pX = decimalNewFromText("2.0", 3);
  }else{
    N = -N;
    pX = decimalNewFromText("0.5", 3);
  }
  if( pX==0 || pX->oom ) goto pow2_fault;
  while( 1 /* Exit by break */ ){
    if( N & 1 ){
      decimalMul(pA, pX);
      if( pA->oom ) goto pow2_fault;
    }
    N >>= 1;
    if( N==0 ) break;
    decimalMul(pX, pX);
  }
  decimal_free(pX);
  return pA;

pow2_fault:
  decimal_free(pA);
  decimal_free(pX);
  return 0;
}

/*
** Use an IEEE754 binary64 ("double") to generate a new Decimal object.
*/
static Decimal *decimalFromDouble(double r){
  sqlite3_int64 m, a;
  int e;
  int isNeg;
  Decimal *pA;
  Decimal *pX;
  char zNum[100];
  if( r<0.0 ){
    isNeg = 1;
    r = -r;
  }else{
    isNeg = 0;
  }
  memcpy(&a,&r,sizeof(a));
  if( a==0 ){
    e = 0;
    m = 0;
  }else{
    e = a>>52;
    m = a & ((((sqlite3_int64)1)<<52)-1);
    if( e==0 ){
      m <<= 1;
    }else{
      m |= ((sqlite3_int64)1)<<52;
    }
    while( e<1075 && m>0 && (m&1)==0 ){
      m >>= 1;
      e++;
    }
    if( isNeg ) m = -m;
    e = e - 1075;
    if( e>971 ){
      return 0;  /* A NaN or an Infinity */
    }
  }

  /* At this point m is the integer significand and e is the exponent */
  sqlite3_snprintf(sizeof(zNum), zNum, "%lld", m);
  pA = decimalNewFromText(zNum, (int)strlen(zNum));
  pX = decimalPow2(e);
  decimalMul(pA, pX);
  decimal_free(pX);
  return pA;
}

/*
** SQL Function:   decimal(X)
** OR:             decimal_sci(X)
**
** Convert input X into decimal and then back into text.
**
** If X is originally a float, then a full decimal expansion of that floating
** point value is done.  Or if X is an 8-byte blob, it is interpreted
** as a float and similarly expanded.
**
** The decimal_sci(X) function returns the result in scientific notation.
** decimal(X) returns a complete decimal, without the e+NNN at the end.
*/
static void decimalFunc(
  sqlite3_context *context,
  int argc,
  sqlite3_value **argv
){
  Decimal *p =  decimal_new(context, argv[0], 0);
  UNUSED_PARAMETER(argc);
  if( p ){
    if( sqlite3_user_data(context)!=0 ){
      decimal_result_sci(context, p);
    }else{
      decimal_result(context, p);
    }
    decimal_free(p);
  }
}

/*
** Compare text in decimal order.
*/
static int decimalCollFunc(
  void *notUsed,
  int nKey1, const void *pKey1,
  int nKey2, const void *pKey2
){
  const unsigned char *zA = (const unsigned char*)pKey1;
  const unsigned char *zB = (const unsigned char*)pKey2;
  Decimal *pA = decimalNewFromText((const char*)zA, nKey1);
  Decimal *pB = decimalNewFromText((const char*)zB, nKey2);
  int rc;
  UNUSED_PARAMETER(notUsed);
  if( pA==0 || pB==0 ){
    rc = 0;
  }else{
    rc = decimal_cmp(pA, pB);
  }

** Return the sum or difference of X and Y.
*/
static void decimalAddFunc(
  sqlite3_context *context,
  int argc,
  sqlite3_value **argv
){
  Decimal *pA = decimal_new(context, argv[0], 1);
  Decimal *pB = decimal_new(context, argv[1], 1);
  UNUSED_PARAMETER(argc);
  decimal_add(pA, pB);
  decimal_result(context, pA);
  decimal_free(pA);
  decimal_free(pB);
}
static void decimalSubFunc(
  sqlite3_context *context,
  int argc,
  sqlite3_value **argv
){
  Decimal *pA = decimal_new(context, argv[0], 1);
  Decimal *pB = decimal_new(context, argv[1], 1);
  UNUSED_PARAMETER(argc);
  if( pB ){
    pB->sign = !pB->sign;
    decimal_add(pA, pB);
    decimal_result(context, pA);
  }
  decimal_free(pA);

    }else{
      p->a[0] = 0;
    }
    p->nDigit = 1;
    p->nFrac = 0;
  }
  if( sqlite3_value_type(argv[0])==SQLITE_NULL ) return;
  pArg = decimal_new(context, argv[0], 1);
  decimal_add(p, pArg);
  decimal_free(pArg);
}
static void decimalSumInverse(
  sqlite3_context *context,
  int argc,
  sqlite3_value **argv
){
  Decimal *p;
  Decimal *pArg;
  UNUSED_PARAMETER(argc);
  p = sqlite3_aggregate_context(context, sizeof(*p));
  if( p==0 ) return;
  if( sqlite3_value_type(argv[0])==SQLITE_NULL ) return;
  pArg = decimal_new(context, argv[0], 1);
  if( pArg ) pArg->sign = !pArg->sign;
  decimal_add(p, pArg);
  decimal_free(pArg);
}
static void decimalSumValue(sqlite3_context *context){
  Decimal *p = sqlite3_aggregate_context(context, 0);
  if( p==0 ) return;
  decimal_result(context, p);
}
static void decimalSumFinalize(sqlite3_context *context){
  Decimal *p = sqlite3_aggregate_context(context, 0);
  if( p==0 ) return;
  decimal_result(context, p);
  decimal_clear(p);
}

/*
** SQL Function:   decimal_mul(X, Y)
**
** Return the product of X and Y.





*/
static void decimalMulFunc(
  sqlite3_context *context,
  int argc,
  sqlite3_value **argv
){
  Decimal *pA = decimal_new(context, argv[0], 1);
  Decimal *pB = decimal_new(context, argv[1], 1);



  UNUSED_PARAMETER(argc);
  if( pA==0 || pA->oom || pA->isNull
   || pB==0 || pB->oom || pB->isNull 
  ){
    goto mul_end;
  }
  decimalMul(pA, pB);
  if( pA->oom ){

    goto mul_end;
  }

























  decimal_result(context, pA);

mul_end:

  decimal_free(pA);
  decimal_free(pB);
}

/*
** SQL Function:   decimal_pow2(N)
**
** Return the N-th power of 2.  N must be an integer.
*/
static void decimalPow2Func(
  sqlite3_context *context,
  int argc,
  sqlite3_value **argv
){
  UNUSED_PARAMETER(argc);
  if( sqlite3_value_type(argv[0])==SQLITE_INTEGER ){
    Decimal *pA = decimalPow2(sqlite3_value_int(argv[0]));
    decimal_result_sci(context, pA);
    decimal_free(pA);
  }
}

#ifdef _WIN32

#endif
int sqlite3_decimal_init(
  sqlite3 *db, 
  char **pzErrMsg, 
  const sqlite3_api_routines *pApi
){
  int rc = SQLITE_OK;
  static const struct {
    const char *zFuncName;
    int nArg;
    int iArg;
    void (*xFunc)(sqlite3_context*,int,sqlite3_value**);
  } aFunc[] = {
    { "decimal",       1, 0,  decimalFunc        },
    { "decimal_sci",   1, 1,  decimalFunc        },
    { "decimal_cmp",   2, 0,  decimalCmpFunc     },
    { "decimal_add",   2, 0,  decimalAddFunc     },
    { "decimal_sub",   2, 0,  decimalSubFunc     },
    { "decimal_mul",   2, 0,  decimalMulFunc     },
    { "decimal_pow2",  1, 0,  decimalPow2Func    },
  };
  unsigned int i;
  (void)pzErrMsg;  /* Unused parameter */

  SQLITE_EXTENSION_INIT2(pApi);

  for(i=0; i<(int)(sizeof(aFunc)/sizeof(aFunc[0])) && rc==SQLITE_OK; i++){
    rc = sqlite3_create_function(db, aFunc[i].zFuncName, aFunc[i].nArg,
                   SQLITE_UTF8|SQLITE_INNOCUOUS|SQLITE_DETERMINISTIC,
                   aFunc[i].iArg ? db : 0, aFunc[i].xFunc, 0, 0);
  }
  if( rc==SQLITE_OK ){
    rc = sqlite3_create_window_function(db, "decimal_sum", 1,
                   SQLITE_UTF8|SQLITE_INNOCUOUS|SQLITE_DETERMINISTIC, 0,
                   decimalSumStep, decimalSumFinalize,
                   decimalSumValue, decimalSumInverse, 0);
  }

      a[sizeof(r)-i] = v&0xff;
      v >>= 8;
    }
    sqlite3_result_blob(context, a, sizeof(r), SQLITE_TRANSIENT);
  }
}

/*
** SQL Function:   ieee754_inc(r,N)
**
** Move the floating point value r by N quantums and return the new
** values.
**
** Behind the scenes: this routine merely casts r into a 64-bit unsigned
** integer, adds N, then casts the value back into float.
**
** Example:  To find the smallest positive number:
**
**     SELECT ieee754_inc(0.0,+1);
*/
static void ieee754inc(
  sqlite3_context *context,
  int argc,
  sqlite3_value **argv
){
  double r;
  sqlite3_int64 N;
  sqlite3_uint64 m1, m2;
  double r2;
  UNUSED_PARAMETER(argc);
  r = sqlite3_value_double(argv[0]);
  N = sqlite3_value_int64(argv[1]);
  memcpy(&m1, &r, 8);
  m2 = m1 + N;
  memcpy(&r2, &m2, 8);
  sqlite3_result_double(context, r2);
}


#ifdef _WIN32

#endif
int sqlite3_ieee_init(
  sqlite3 *db, 
  char **pzErrMsg, 

  } aFunc[] = {
    { "ieee754",           1,   0, ieee754func },
    { "ieee754",           2,   0, ieee754func },
    { "ieee754_mantissa",  1,   1, ieee754func },
    { "ieee754_exponent",  1,   2, ieee754func },
    { "ieee754_to_blob",   1,   0, ieee754func_to_blob },
    { "ieee754_from_blob", 1,   0, ieee754func_from_blob },
    { "ieee754_inc",       2,   0, ieee754inc  },
  };
  unsigned int i;
  int rc = SQLITE_OK;
  SQLITE_EXTENSION_INIT2(pApi);
  (void)pzErrMsg;  /* Unused parameter */
  for(i=0; i<sizeof(aFunc)/sizeof(aFunc[0]) && rc==SQLITE_OK; i++){
    rc = sqlite3_create_function(db, aFunc[i].zFName, aFunc[i].nArg,

        SHELL_SUBMACRO(SQLITE_SHELL_EXTFUNCS, EXPOSE)(p->db, 0);
      }
#undef SHELL_SUB_MACRO
#undef SHELL_SUBMACRO
    }
#endif

    sqlite3_create_function(p->db, "strtod", 1, SQLITE_UTF8, 0,
                            shellStrtod, 0, 0);
    sqlite3_create_function(p->db, "dtostr", 1, SQLITE_UTF8, 0,
                            shellDtostr, 0, 0);
    sqlite3_create_function(p->db, "dtostr", 2, SQLITE_UTF8, 0,
                            shellDtostr, 0, 0);
    sqlite3_create_function(p->db, "shell_add_schema", 3, SQLITE_UTF8, 0,
                            shellAddSchemaName, 0, 0);
    sqlite3_create_function(p->db, "shell_module_schema", 1, SQLITE_UTF8, 0,
                            shellModuleSchema, 0, 0);
    sqlite3_create_function(p->db, "shell_putsnl", 1, SQLITE_UTF8, p,
                            shellPutsFunc, 0, 0);
    sqlite3_create_function(p->db, "usleep",1,SQLITE_UTF8,0,

        "ORDER BY 1 collate nocase";
      zRevText = sqlite3_mprintf(zRevText, zLike? " AND name LIKE $tspec" : "");
      zRevText = sqlite3_mprintf(
          /* lower-case query is first run, producing upper-case query. */
          "with tabcols as materialized(\n"
          "select tname, cname\n"
          "from ("
          " select printf('\"%%w\"',ss.tname) as tname,"
          " printf('\"%%w\"',ti.name) as cname\n"
          " from (%z) ss\n inner join pragma_table_info(tname) ti))\n"
          "select 'SELECT total(bad_text_count) AS bad_text_count\n"
          "FROM ('||group_concat(query, ' UNION ALL ')||')' as btc_query\n"
          " from (select 'SELECT COUNT(*) AS bad_text_count\n"
          "FROM '||tname||' WHERE '\n"
          "||group_concat('CAST(CAST('||cname||' AS BLOB) AS TEXT)<>'||cname\n"
          "|| ' AND typeof('||cname||')=''text'' ',\n"

#endif /* !defined(SQLITE_SHELL_FIDDLE) */

#ifndef SQLITE_UNTESTABLE
  if( c=='t' && n>=8 && cli_strncmp(azArg[0], "testctrl", n)==0 ){
    static const struct {
       const char *zCtrlName;   /* Name of a test-control option */
       int ctrlCode;            /* Integer code for that option */
       int unSafe;              /* Not valid unless --unsafe-testing */
       const char *zUsage;      /* Usage notes */
    } aCtrl[] = {
    {"always",             SQLITE_TESTCTRL_ALWAYS, 1,     "BOOLEAN"         },
    {"assert",             SQLITE_TESTCTRL_ASSERT, 1,     "BOOLEAN"         },
  /*{"benign_malloc_hooks",SQLITE_TESTCTRL_BENIGN_MALLOC_HOOKS,1, ""        },*/
  /*{"bitvec_test",        SQLITE_TESTCTRL_BITVEC_TEST, 1,  ""              },*/
    {"byteorder",          SQLITE_TESTCTRL_BYTEORDER, 0,  ""                },

    {"pending_byte",       SQLITE_TESTCTRL_PENDING_BYTE,0, "OFFSET  "       },
    {"prng_restore",       SQLITE_TESTCTRL_PRNG_RESTORE,0, ""               },
    {"prng_save",          SQLITE_TESTCTRL_PRNG_SAVE,   0, ""               },
    {"prng_seed",          SQLITE_TESTCTRL_PRNG_SEED,   0, "SEED ?db?"      },
    {"seek_count",         SQLITE_TESTCTRL_SEEK_COUNT,  0, ""               },
    {"sorter_mmap",        SQLITE_TESTCTRL_SORTER_MMAP, 0, "NMAX"           },
    {"tune",               SQLITE_TESTCTRL_TUNE,        1, "ID VALUE"       },
    {"uselongdouble",    SQLITE_TESTCTRL_USELONGDOUBLE,0,"?BOOLEAN|\"default\"?"},
    };
    int testctrl = -1;
    int iCtrl = -1;
    int rc2 = 0;    /* 0: usage.  1: %d  2: %x  3: no-output */
    int isOk = 0;
    int i, n2;
    const char *zCmd = 0;







    open_db(p, 0);
    zCmd = nArg>=2 ? azArg[1] : "help";

    /* The argument can optionally begin with "-" or "--" */
    if( zCmd[0]=='-' && zCmd[1] ){
      zCmd++;
      if( zCmd[0]=='-' && zCmd[1] ) zCmd++;
    }

    /* --help lists all test-controls */
    if( cli_strcmp(zCmd,"help")==0 ){
      utf8_printf(p->out, "Available test-controls:\n");
      for(i=0; i<ArraySize(aCtrl); i++){
        if( aCtrl[i].unSafe && !ShellHasFlag(p,SHFLG_TestingMode) ) continue;
        utf8_printf(p->out, "  .testctrl %s %s\n",
                    aCtrl[i].zCtrlName, aCtrl[i].zUsage);
      }
      rc = 1;
      goto meta_command_exit;
    }

    /* convert testctrl text option to value. allow any unique prefix
    ** of the option name, or a numerical value. */
    n2 = strlen30(zCmd);
    for(i=0; i<ArraySize(aCtrl); i++){
      if( aCtrl[i].unSafe && !ShellHasFlag(p,SHFLG_TestingMode) ) continue;
      if( cli_strncmp(zCmd, aCtrl[i].zCtrlName, n2)==0 ){
        if( testctrl<0 ){
          testctrl = aCtrl[i].ctrlCode;
          iCtrl = i;
        }else{
          utf8_printf(stderr, "Error: ambiguous test-control: \"%s\"\n"
                              "Use \".testctrl --help\" for help\n", zCmd);
          rc = 1;
          goto meta_command_exit;
        }
      }
    }
    if( testctrl<0 ){
      utf8_printf(stderr,"Error: unknown test-control: %s\n"
                         "Use \".testctrl --help\" for help\n", zCmd);





    }else{
      switch(testctrl){

        /* sqlite3_test_control(int, db, int) */
        case SQLITE_TESTCTRL_OPTIMIZATIONS:
          if( nArg==3 ){
            unsigned int opt = (unsigned int)strtol(azArg[2], 0, 0);

        case SQLITE_TESTCTRL_NEVER_CORRUPT:
          if( nArg==3 ){
            int opt = booleanValue(azArg[2]);
            rc2 = sqlite3_test_control(testctrl, opt);
            isOk = 3;
          }
          break;

        /* sqlite3_test_control(int, int) */
        case SQLITE_TESTCTRL_USELONGDOUBLE: {
          int opt = -1;
          if( nArg==3 ){
            if( cli_strcmp(azArg[2],"default")==0 ){
              opt = 2;
            }else{
              opt = booleanValue(azArg[2]);
            }
          }
          rc2 = sqlite3_test_control(testctrl, opt);
          isOk = 1;
          break;
        }

        /* sqlite3_test_control(sqlite3*) */
        case SQLITE_TESTCTRL_INTERNAL_FUNCTIONS:
          rc2 = sqlite3_test_control(testctrl, p->db);
          isOk = 3;
          break;