c 结构关系

Question

//CHILD
typedef struct Child{
    int id;
}Child;
Child* newChild(){
    Child *aChild = malloc(sizeof(Child));
    aChild->id = 0;
    return aChild;
}

//PARENT
typedef struct Parent{
    int id;
    Child **children;
}Parent;

Parent* newParent(){
    Parent *aParent = malloc(sizeof(Parent));
    aParent->id = 0;
    aParent->children = malloc(sizeof(Child*) * 5);//ARRAY OF 5 CHILDREN?
    for(i=0; i<5; i++){
        aParent->children[i] = newChild();
    }
    return aParent;
}

newParent() 函数是否是创建具有子数组的结构的正确方法？我主要关心的是这一行:

aParent->children = malloc(sizeof(Child*) * 5);

Answer 1

您应该检查 malloc 是否真的成功了，但除此之外，代码没问题。