Question

我是编程Arduino的新手。在我的一个功能中，我收到了这个错误：

incompatible types in assignment of 'incompatible types in assignment
of 'byte (*)[13] {aka unsigned char (*)[13]}' to 'byte [15][13] {aka
unsigned char [15][13]}

matrix = board;

以下是代码：

    byte matrix[][13] = { {247,199,199,199,199,193,0,7,199,199,199,199,223},
    { 241,0,0,0,0,0,0,0,0,0,0,0,31 },
    { 241,0,0,0,0,0,0,0,0,0,0,0,31 },
    { 241,0,0,0,0,0,0,0,0,0,0,0,31 },
    { 241,0,0,0,0,0,0,0,0,0,0,0,31 },
    { 241,0,0,0,0,0,0,0,0,0,0,0,31 },
    { 241,0,0,0,0,0,0,0,0,0,0,0,31 },
    { 245,68,68,68,68,68,68,68,68,68,68,68,95 },
    { 241,0,0,0,0,0,0,0,0,0,0,0,31 },
    { 241,0,0,0,0,0,0,0,0,0,0,0,31 },
    { 241,0,0,0,0,0,0,0,0,0,0,0,31 },
    { 241,0,0,0,0,0,0,0,0,0,0,0,31 },
    { 241,0,0,0,0,0,0,0,0,0,0,0,31 },
    { 241,0,0,0,0,0,0,0,0,0,0,0,31 },
    { 253,124,124,124,124,112,0,28,124,124,124,124,127 }};
byte BallX =7;
byte BallY=6;
void setup() {
   Serial.begin(9600);
}

void loop() {
  Serial.print(findPossibleMoves(matrix,BallX,BallY,"",""));
  while(1) {

  }

}
String findPossibleMoves(byte board[][13], byte bx, byte by,String MyMove,String token) {
  byte iterationCounter=0;
  byte point = board[bx][by];
  if((point==1)||(point==2)||(point==4)||(point==8)||(point==16)||(point==32)||(point==64)||(point==128)){
    MyMove += token;
    MyMove += "/";
    return MyMove;
  }
  for(byte i=0;i<8;i++){
    if(bitRead(point,i)) {
      continue;
    }
    else{
      if((token.length()>0) && (iterationCounter!=0)){
        token.remove(token.length()-1);
      }
      iterationCounter++;
      token+=String(i);
      moveBall(matrix,i);
      BallX = bx;
      BallY = by;
      matrix = board;
      MyMove += findPossibleMoves(matrix,BallX,BallY,MyMove,token);
      //MyMove+= "/";
      //MyMove += token;
    }
  }
  return MyMove;
}
void moveBall(byte board[][13],byte dir) {
  byte point = board[BallX][BallY];
    switch (dir)
    {
    case 0:
      if (bitRead(point,0)==1)
      {
        break;
      }
      else {
        board[BallX][BallY] |= 1;
        BallX--;
        board[BallX][BallY] |= 16;
      }
      break;
    case 1:
      if (bitRead(point,1)==1)
      {
        break;
      }
      else {
        board[BallX][BallY] |= 2;
        BallX--;
        BallY++;
        board[BallX][BallY] |= 32;
      }
      break;
    case 2:
      if (bitRead(point,2) == 1)
      {
        break;
      }
      else {
        board[BallX][BallY] |= 4;
        BallY++;
        board[BallX][BallY] |= 64;
      }
      break;
    case 3:
      if (bitRead(point,3) == 1)
      {
        break;
      }
      else {
        board[BallX][BallY] |= 8;
        BallX++;
        BallY++;
        board[BallX][BallY] |= 128;
      }
      break;
    case 4:
      if (bitRead(point,4) == 1)
      {
        break;
      }
      else {
        board[BallX][BallY] |= 16;
        BallX++;
        board[BallX][BallY] |= 1;
      }
      break;
    case 5:
      if (bitRead(point,5) == 1)
      {
        break;
      }
      else {
        board[BallX][BallY] |= 32;
        BallX++;
        BallY--;
        board[BallX][BallY] |= 2;
      }
      break;
    case 6:
      if (bitRead(point,6) == 1)
      {
        break;
      }
      else {
        board[BallX][BallY] |= 64;
        BallY--;
        board[BallX][BallY] |= 4;
      }
      break;
    case 7:
      if (bitRead(point,7) == 1)
      {
        break;
      }
      else {
        board[BallX][BallY] |= 128;
        BallX--;
        BallY--;
        board[BallX][BallY] |= 8;
      }
      break;
    default:
      break;
    }
}

我真的不知道造成这个错误的原因。我浏览网页，我唯一能找到的就是从matrix声明中删除第一个维度的大小。你们可以帮我解决一下如何解决这个问题吗？

Answer 1

您不能像以下那样一次将整个数组分配给另一个数组：

matrix = board;

您需要逐个复制元素或使用memcpy之类的函数来复制内存块。

Arduino程序中的类型不兼容

1 个答案: