C 错误：数组类型的元素类型typedef不完整

我正在用C语言做一个生命游戏。我被告知尽可能使用typedef和enum，所以我制作了一个typedef

状态

，以指示单元格是死的还是活的。 我制作了一个3d阵列，可以容纳所有世代的所有电路板。 当我尝试将数组用作函数的参数时，它会显示

错误：数组类型的元素类型不完整

。我做错事了吗？不能有用户定义类型的数组吗？ 这是我的密码：

#include <stdio.h>
#include <stdlib.h>
typedef enum { DEAD, ALIVE } state;
void nextGeneration(state[][][], int, int, int);
int numberOfNeighbours(state[][][], int, int, int);
void printGeneration(state[][][], int, int, int);
int main(void)
{
        FILE *filePath;
        int boardHeight;
        int boardWidth;
        int requestedGenerations;
        state board[100][10][10] = { DEAD };
        int h;
        int w;
        if((filePath = fopen("file1", "r")) == NULL)
        {
                fprintf(stderr, "No such file.\n");
                exit(1);
        }
        if(fscanf(filePath, "%d %d %d", &requestedGenerations, &boardHeight, &boardWidth) != 3)
        {
                fprintf(stderr, "File doesn't contain the number of requested generations or the board's size.\n");
                exit(2);
        }
        for (h = 0; h < boardHeight; h++)
                for(w = 0; w < boardWidth; w++)
                        fscanf(filePath, "%d", &board[0][h][w]);
        while(requestedGenerations > 0)
        {
                nextGeneration(board, requestedGenerations--, boardHeight, boardWidth);
                printGeneration(board, requestedGenerations, boardHeight, boardWidth);
        }
}
void nextGeneration(state board[][][], int requestedGeneration, int boardHeight, int boardWidth)
{
        int h;
        int w;
        int currentNumOfNeighbours;
        for(h = 0; h < boardHeight; h++)
                for(w = 0; w < boardHeight; w++)
                {
                        currentNumOfNeighbours = numberOfNeighbours(board, requestedGeneration, h, w);
                        if(board[requestedGeneration][h][w] == ALIVE)
                        {
                                if(currentNumOfNeighbours == 2 || currentNumOfNeighbours == 3)
                                        board[requestedGeneration + 1][h][w] == ALIVE;
                        } else if(currentNumOfNeighbours == 3)
                                board[requestedGeneration + 1][h][w] == ALIVE;
                        }
                }
}
int numberOfNeighbours(state board[][][], int requestedGeneration, int h, int w)
{
        int result = 0;
        if(board[requestedGeneration][h][w + 1]) result++;
        if(board[requestedGeneration][h][w - 1]) result++;
        if(board[requestedGeneration][h + 1][w]) result++;
        if(board[requestedGeneration][h - 1][w]) result++;
        if(board[requestedGeneration][h + 1][w + 1]) result++;
        if(board[requestedGeneration][h - 1][w + 1]) result++;
        if(board[requestedGeneration][h + 1][w - 1]) result++;
        if(board[requestedGeneration][h + 1][w - 1]) result++;
        return result;
}
void printGeneration(state board[][][], int requestedGeneration, int boardHeight, int boardWidth)
{
        int h;
        int w;
        for(h = 0; h < boardHeight; h++)
        {
                for(w = 0; w < boardWidth; w++)
                        printf("%d", board[requestedGeneration][h][w]);
                printf("\n");
        }
}

---

非常感谢您的帮助，谢谢：）。

您需要在函数定义中给出数组最后两个维度的大小，例如

     #define y 10
     #define z 10

    void nextGeneration(state board[][y][z], int requestedGeneration, int boardHeight, int boardWidth) 
    {
       ....
    }


    int numberOfNeighbours(state board[][y][z], int requestedGeneration, int h, int w)
    {
       ....
    }

这是给系统一个提示，当您试图访问某个元素时，如何计算该元素的索引。请记住，数组（不管它有多少个维度）只是一个连续的内存块，所以当您索引到数组时，编译器会生成这样的代码

*(board + requestedGeneration * 10 * 10 + h * 10 + w  )

---

等等，你是在用C99可变长度数组还是什么？因为否则，我认为函数不能接受除最后一个维度以外的任何“未知”维度的多维数组参数。@Medinoc那么你是说我应该执行类似于f（state[requestedGenerations][boardHeight][boardWidth]board？

*(board + requestedGeneration * 10 * 10 + h * 10 + w  )