您可以在结构初始化中创建一个数组吗？

Question

所以我有一个结构:

typedef struct Board {
    size_t size;
    char* board;
} Board;

我想知道在结构初始化期间是否可以做这样的事情:

Board boardStruct = {
    solutionLength, 
    char emptyBoard[size]
};

不幸的是，当我尝试这样做时，出现编译错误: “char”之前的预期表达式

有什么想法吗？我试图避免在结构初始化之外声明数组，但如果这是唯一的选择，我想这就是我必须采用的路线。

Answer 1

你可以做这样的事情:

#include <stdlib.h>

typedef struct Board {
    size_t size;
    char* board;
} Board;

int main()
{
  const int solutionLength = 3; /* or #define solutionLength 3 */

  Board boardStruct = {
    solutionLength, 
    malloc(solutionLength)
  };

  return 0;
}

---

或更接近您的建议:

#include <stdlib.h>

typedef struct Board {
    size_t size;
    char* board;
} Board;


int main()
{
  const int solutionLength = 3; /* or #define solutionLength 3 */
  char emptyBoard[solutionLength];

  Board boardStruct = {
    solutionLength, 
    emptyBoard
  };

  return 0;
}