/*
** Generate N bytes of pseudo-randomness using a FastPrng
*/
void sqlite3FastRandomness(FastPrng *pPrng, int N, void *P){
  unsigned char *pOut = (unsigned char*)P;
  while( N-->0 ){
    pPrng->x = ((pPrng->x)>>1) ^ ((1+~((pPrng->x)&1)) & 0xd0000001);




    pPrng->y = (pPrng->y)*1103515245 + 12345;

    *(pOut++) = (pPrng->x ^ pPrng->y) & 0xff;
  }
}

#ifndef SQLITE_UNTESTABLE
/*
** For testing purposes, we sometimes want to preserve the state of

/*
** Generate N bytes of pseudo-randomness using a FastPrng
*/
void sqlite3FastRandomness(FastPrng *pPrng, int N, void *P){
  unsigned char *pOut = (unsigned char*)P;
  while( N-->0 ){
    /* "x" is a variant of LFSR called "Xorshift" by George Marsaglia */
    pPrng->x ^= pPrng->x <<13;
    pPrng->x ^= pPrng->x >>7;
    pPrng->x ^= pPrng->x <<17;
    /* "y" is a LCG using Don Kunth's constants from MMIX */
    pPrng->y = (pPrng->y)*6364136223846793005LL + 1442695040888963407LL;
    /* XOR the two streams together to give the final result */
    *(pOut++) = (pPrng->x ^ pPrng->y) & 0xff;
  }
}

#ifndef SQLITE_UNTESTABLE
/*
** For testing purposes, we sometimes want to preserve the state of

#endif

/*
** State of a simple PRNG used for the per-connection and per-pager
** pseudo-random number generators.
*/
struct FastPrng {
  unsigned int x, y;
};

/*
** Each database file to be accessed by the system is an instance
** of the following structure.  There are normally two of these structures
** in the sqlite.aDb[] array.  aDb[0] is the main database file and
** aDb[1] is the database file used to hold temporary tables.  Additional

#endif

/*
** State of a simple PRNG used for the per-connection and per-pager
** pseudo-random number generators.
*/
struct FastPrng {
  sqlite3_uint64 x, y;
};

/*
** Each database file to be accessed by the system is an instance
** of the following structure.  There are normally two of these structures
** in the sqlite.aDb[] array.  aDb[0] is the main database file and
** aDb[1] is the database file used to hold temporary tables.  Additional