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#2
FORTHGOER2021-03-11 16:01
回复 楼主 FORTHGOER
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程序代码：//define struct type
typedef struct Lnode {
int data;
struct LNode* next;
}Lnode;
//creat Link list
void CreatList() {
//creat Head pointer and Tail pointer
Lnode** Head;
Lnode* Tail;
//creat an empyt Link list
*Head = (Lnode* )malloc(sizeof(Lnode));
(*Head)->next = NULL;
Tail = *Head;
//insert data
for (int i = 0; i < 3; ++i) {
//creat new node
Lnode* P = (Lnode* )malloc(sizeof(Lnode));
//update date domain and pointer domain of new node
P->data = i;
P->next = NULL;
//update pointer domain of before node
Tail->next = P;
//update Tail pointer Location
Tail = P;
}
}
typedef struct Lnode {
int data;
struct LNode* next;
}Lnode;
//creat Link list
void CreatList() {
//creat Head pointer and Tail pointer
Lnode** Head;
Lnode* Tail;
//creat an empyt Link list
*Head = (Lnode* )malloc(sizeof(Lnode));
(*Head)->next = NULL;
Tail = *Head;
//insert data
for (int i = 0; i < 3; ++i) {
//creat new node
Lnode* P = (Lnode* )malloc(sizeof(Lnode));
//update date domain and pointer domain of new node
P->data = i;
P->next = NULL;
//update pointer domain of before node
Tail->next = P;
//update Tail pointer Location
Tail = P;
}
}
gcc 9.2.0 报错
.\Link.c: In function 'CreatList':
.\Link.c:45:20: warning: assignment to 'struct LNode *' from incompatible pointer type 'Lnode *' {aka 'struct Lnode *'} [-Wincompatible-pointer-types]
45 | Tail->next = P;
| ^
.\Link.c:45:20: warning: assignment to 'struct LNode *' from incompatible pointer type 'Lnode *' {aka 'struct Lnode *'} [-Wincompatible-pointer-types]
45 | Tail->next = P;
| ^
我觉得没错啊 Tail->next 与 P 都是 Lnode* 类型啊
