我已经看了其他问题,但似乎无法找到明确的答案。我如何在结构体中声明结构体数组?我试图做它在main(),但我不知道如果我这样做是正确和我不断收到这样的警告:“初始化将整数指针不投”初始化struct中的结构数组
#define MAXCARDS 20
struct card {
int priority;
};
struct battleQ {
struct card cards[MAXCARDS];
int head;
int tail;
int size;
};
int main (int argc, char *argv[]) {
struct battleQ bq;
bq.cards = {
malloc(MAXCARDS * sizeof (struct card)), //Trouble with this part
0,
0,
0
};
//...
return 1;
}
编辑建议后:好吧,现在我遇到了问题。我一直得到这个错误:
3 [main] TurnBasedSystem 47792 open_stackdumpfile: Dumping stack trace to TurnBasedSystem.exe.stackdump
我不得不改变一下代码,并做出一切指针。我测试了它,只要我尝试指定它的一个属性就会给我这个错误:bq-> head = 0
整个事情只是应该添加一张卡到队列中。修改后的代码如下:
#include <stdio.h>
#include <stdbool.h>
#include <string.h>
#include <unistd.h>
#include <stdlib.h>
#define MAXCARDS 20
struct card {
int priority;
};
// A queue defined by a circular array
struct battleQ {
struct card *cards[MAXCARDS];
int head;
int tail;
int size;
};
bool battleQEnqueue (struct battleQ *bq, struct card *c);
bool battleQisFull(struct battleQ *bq);
// Method for enqueuing a card to the queue
bool battleQEnqueue (struct battleQ *bq, struct card *c) {
bool success = false;
if (battleQisFull(&bq)) {
printf("Error: Battle queue is full\n");
} else {
success = true;
bq->cards[bq->tail] = c;
bq->size = bq->size + 1;
bq->tail = (bq->tail + 1) % MAXCARDS;
}
return success;
}
int main (int argc, char *argv[]) {
int i;
struct battleQ *bq;
memset(&bq, 0, sizeof(bq)); // Did I do this properly?
bq->tail = 0; // Gives error at this point
bq->head = 0;
bq->size = 0;
// This is where I create a card and add it to the queue but the main problem
// is still the initialization above
for (i = 0; i < 5; i++) {
struct card *c = malloc(sizeof(c));
c->priority = i + 10;
printf("%d,", c->priority);
battleQEnqueue(&bq, &c);
}
return 1;
}
顺便说一下,故障可能是由引起的malloc返回一个void * –