File: main.c

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int test_bit_parity(unsigned int v)
{
  int parity = 0;
  while (v)
    {
      parity ^= (v & 1);
      v >>= 1;
    }
  return parity;
}

int main()
{
  int r0, r1;

  r0=test_bit_parity(699050);
  assert(r0==0);

  r1=test_bit_parity(699050+1);
  assert(r1==1);
}