BitOperations --- What do you think SomeFunction does?

int SomeFunction(int* intArr, int numElements)
{
  int bytesNeed = numElements/8 + 1;
  char* buf = new char[bytesNeed];
  for(int i=0; i<bytesNeed; i++)
  {
    buf[i] = (unsigned char)0x0;
  }
   
  for (int j=0; j<numElements; j++)
  {
    int byteOffset = intArr[j]/8;
    int bitOffset = intArr[j]%8;
    if (bitOffset == 0)
    {
      byteOffset = byteOffset -1;
      unsigned short check = buf[byteOffset] & 0x1;
      if (check == 1)
      {
        return 1;
      }
      else
      {
        buf[byteOffset] = buf[byteOffset] 0x1;
      }
    }
    else
    {
      unsigned char check = buf[byteOffset] >> (8-bitOffset);
      check = check & 0x1;
      if ((int)check == 1)
      {
        return 1;
      }
      else
      {
        buf[byteOffset] = buf[byteOffset](0x1 << (8-bitOffset));
      }

    }

  }
  return 0;
}