C++ code - 9 lines

Link:

C++, pasted on Jan 31:

Board getCopyAndMakeNextMove()
{
  Board nextState = Board(*this);

  nextState.makeNextMove();
  moves.pop();

  return nextState;
}

Output:

1 2	Line 1: error: 'Board' does not name a type compilation terminated due to -Wfatal-errors.