Question

C语言结构体指针数组初始化问题

我的结构体定义代码:
typedef struct aa AA;
typedef struct bb BB;

typedef AA *PAA ;
typedef AA *PAAS[500];
typedef PAAS *PPAAS;

typedef BB *PBB ;
typedef BB *PBBS[500];

struct aa{
char* name;

int age;

}

struct bb{
int aacount;

PBBS pbbs;

}
定义了一个变量：
PPAAS ppaas;
怎么对ppaas进行初始化？
上面写错了，应该是
定义类型
typedef PBBS *PPBBS;

定义变量
PPBBS ppbbs;
对ppbbs进行初始化

Answer 1

//给空值
ppaas = NULL;

//申请空间
ppaas =(PPAAS)new aa *[500];//new以后，这个空间（数组）存放500个指针，ppaas 指向这个空间，使用时需要再对每个元素去分配内存。

//比如
(*ppaas)[0] = new aa;
(*ppaas)[0]->age = 100;
(*ppaas)[0]->name = "sdfsdf";

//---------------------------------------------------
ppbbs = NULL;

ppbbs =(PPBBS)new PBB[500];

(*ppbbs)[0] = new BB;
(*ppbbs)[0]->aacount = 100;
(*ppbbs)[0]->pbbs[0] =new BB;
(*ppbbs)[0]->pbbs[0]->aacount = 101;
(*ppbbs)[0]->pbbs[0]->pbbs[0] = NULL;
(*ppbbs)[0]->pbbs[0]->pbbs[1] = NULL;
(*ppbbs)[0]->pbbs[1] = new BB;
(*ppbbs)[0]->pbbs[1]->aacount = 101;
(*ppbbs)[0]->pbbs[1]->pbbs[0] = NULL;
(*ppbbs)[0]->pbbs[1]->pbbs[1] = NULL;
(*ppbbs)[0]->pbbs[2] = NULL;

(*ppbbs)[1] = NULL;