c - 未找到结构体成员

Question

我有以下结构:

typedef struct vertex_tag{
    int visited = 0;
    int weight = FLT_MAX;
    int prev;
}vertex_t;

它具有如上所述的三个成员。

我像这样分配顶点:

vertex_t * vertex[G->vertices];
    for(i=0; i < G->vertices; i++)
    {
        vertex[i] = (vertex_t*)malloc(sizeof(vertex_t));
    }

所以我从该结构创建一个矩阵。然后我在我创建的函数中调用它们，如下所示:

vertex[i]->visited
vertex[i]->weight
vertex[i]->prev

我不断收到以下错误:

error: ‘vertex_t’ has no member named ‘visited’
error: ‘vertex_t’ has no member named ‘weight’
error: ‘vertex_t’ has no member named ‘prev’

谁能帮我理解为什么我不能这样做？

Answer 1

Okay so I can do it after the for loop in which I malloced it?

在循环中你会做得更好。

    vertex_t *vertex[G->vertices];
    for (i = 0; i < G->vertices; i++)
    {
        vertex[i] = malloc(sizeof(vertex_t));
        vertex[i]->visited = 0;
        vertex[i]->weight = FLT_MAX;
    }

或者根据 Zeta 的建议:

    vertex_t vertex[G->vertices];
    for (i = 0; i < G->vertices; i++)
    {
        vertex[i].visited = 0;
        vertex[i].weight = FLT_MAX;
    }