c - 警告 : assignment from incompatible pointer type (Pointers and structures)

Question

我为我的迷宫机器人定义了以下两个结构。

struct mazecells{
    char type;
    int reachable;
    int visited;
};

typedef struct maze {
    struct mazecells **M;
    int startx, starty;
    int numrows, numcolumns;
    int initdir;
}maze_t;

void ReadMaze(maze_t *maze) {
    char **mazeValue;

... remaining declaration and logic ...

在 mazevalue 中，我已经读取了迷宫输入，然后尝试使用 maze->M = mazeValue 将其分配给您 struct maze_t >。我低于警告:

warning: assignment from incompatible pointer type
     maze->M = mazeValue;

我是不是误会了或遗漏了什么？

Answer 1

也许我漏掉了，但你为什么不把 mazeValue 变成 mazecells？

struct mazecells{
    char type;
    int reachable;
    int visited;
};

typedef struct maze {
    struct mazecells **M;
    int startx, starty;
    int numrows, numcolumns;
    int initdir;
}maze_t;

void ReadMaze(maze_t *maze) {
    struct mazecells **mazeValue;

...