C如何不使用->或

Question

struct Heap {
    int capacity;
    int heapSize;
    int *tree;     // the heap binary tree
    int *pos;       // pos[i] is the position of values[i] in items
    float *p;  // priority value of each heap element
};

void initHeap(struct Heap *heap, int capacity) {
    heap->capacity = capacity;
    heap->heapSize = 0;
    heap->tree = malloc(sizeof(int)*(capacity+1));
    heap->pos = malloc(sizeof(int)*(capacity+1));
    heap->p = malloc(sizeof(float)*(capacity+1));
}

void betterInit(struct Heap *heap, int capacity) {
    with (heap) { // doesn't exist
        capacity = capacity;
        heapSize = 0;
        tree = malloc(sizeof(int)*(capacity+1));
        pos = malloc(sizeof(int)*(capacity+1));
        p = malloc(sizeof(float)*(capacity+1));
        data = malloc(sizeof(struct Data)*(capacity+1));
    }
}

所以第一个initHeap看起来很长，因为我不得不多次写heap->。我希望使它看起来更短。

一种解决方法是写：

int *tree = heap->tree;
int *pos = heap->pos;
float *p = heap->p;

然后使用tree, pos, p。还有更多方法吗？谢谢。

Answer 1

如何使用点“。” ？喜欢