我的链表代码有什么问题？ [英] what's wrong with my code of linked list?
问题描述
我正在测试链接列表的问题。
我做了很多次：创建一个列表，然后释放它。
## ###########################################
#include< stdio.h>
#include< stdlib.h>
struct element {
int index ;
struct element * next;
};
void free_list（struct element * first）{
struct element * current，* next;
current = first;
next = current-> next;
while（next ！= NULL）{
printf（释放％d元素\ n，当前 - >索引）;
免费（当前）;
current = next;
next = current-> next;
}
free（current）;
}
void print_list（struct element * first）{
struct element * current;
current = first;
while（current！= NULL）{
printf（"％d th element visited\\\
，current-> index）; < b r />
current = current-> next;
}
}
struct element * create_list（void）{
struct element * temp，* leading，* previous;
int i;
leading = malloc（sizeof（struct element））;
leading-> index = 0;
previous = leading;
for（i = 1; i< 1000; i ++） {
temp = malloc（sizeof（struct element））;
temp-> next == NULL;
temp-> index = i;
previous-> next = temp;
previous = temp;
}
返回领先;
}
int main（）{
int i;
struct element * dummy ;
for（i = 0; i< 2; i ++）{
dummy = create_list（）;
print_list（dummy）; < br $>
free_list（假）;
}
返回0;
}
********************************************* *** ****
这段代码怎么了？我用（i = 0; i< 1; i ++）
main（）时很好。
谢谢
un **** ********@hotmail.com 写道......
temp-> next == NULL;
"问题？" <未************ @ hotmail.com>写道：我正在测试链表的问题。
我只是做了很多次：创建一个列表，然后释放它。
### ##########################################
＃include< stdio.h>
#include< stdlib.h>
[snip]
*************************************** *********** ****
这段代码怎么了？当我在
main（）中使用（i = 0; i< 1; i ++）时它很好。
你将会有给我们一个提示。什么程序应该是什么？b $ b要做什么，它实际上做了什么？
-
Keith Thompson（The_Other_Keith） ks***@mib.org < http://www.ghoti.net/~kst>
圣地亚哥超级计算机中心< *> < http://users.sdsc.edu/~kst>
我们必须做点什么。这是事情。因此，我们必须这样做。
" questions？" <未************ @ hotmail.com>写道：
我正在测试链表的问题。
我只是做了很多次：创建一个列表，然后释放它。
############################################# $
[Snip链表代码]
**************************** ********************** ****
这段代码怎么了？我在
main（）中使用（i = 0; i< 1; i ++）时很好。
你的问题是什么？它？它对我来说运行良好，乍看之下我不会发现它有任何问题。我唯一能选择的就是
你称之为领先的东西。通常被称为头节点，但
这不是一个实际错误，这是一个风格问题。
Richard
I am testing a problem with linked list.
I just do a lot of times: create a list, then free it.
#############################################
# include <stdio.h>
# include <stdlib.h>
struct element {
int index;
struct element *next;
};
void free_list(struct element * first){
struct element *current,*next;
current=first;
next=current->next;
while(next !=NULL){
printf("free the %d the element\n",current->index);
free(current);
current=next;
next=current->next;
}
free(current);
}
void print_list(struct element *first){
struct element *current;
current=first;
while(current !=NULL){
printf("the %d th element visited\n",current->index);
current=current->next;
}
}
struct element *create_list(void){
struct element *temp,*leading,*previous;
int i;
leading=malloc(sizeof(struct element));
leading->index=0;
previous=leading;
for(i=1;i<1000;i++){
temp=malloc(sizeof(struct element));
temp->next==NULL;
temp->index=i;
previous->next=temp;
previous=temp;
}
return leading;
}
int main(){
int i;
struct element *dummy;
for(i=0;i<2;i++){
dummy=create_list();
print_list(dummy);
free_list(dummy);
}
return 0;
}
************************************************** ****
What''s wrong this this code? it is fine when I use for(i=0;i<1;i++) in
main().
Thanks
un************@hotmail.com wrote...
temp->next==NULL;
"questions?" <un************@hotmail.com> writes:I am testing a problem with linked list.
I just do a lot of times: create a list, then free it.
#############################################
# include <stdio.h>
# include <stdlib.h> [snip]
************************************************** ****
What''s wrong this this code? it is fine when I use for(i=0;i<1;i++) in
main().
You''re going to have to give us a hint. What is the program supposed
to do, and what does it actually do?
--
Keith Thompson (The_Other_Keith) ks***@mib.org <http://www.ghoti.net/~kst>
San Diego Supercomputer Center <*> <http://users.sdsc.edu/~kst>
We must do something. This is something. Therefore, we must do this.
"questions?" <un************@hotmail.com> wrote:
I am testing a problem with linked list.
I just do a lot of times: create a list, then free it.
#############################################
[ Snip linked list code ]
************************************************** ****
What''s wrong this this code? it is fine when I use for(i=0;i<1;i++) in
main().
What''s your problem with it? It runs fine for me, and at first glance I
can''t find anything wrong with it. The only nit I would pick is that
what you call "leading" is conventionally called the head node, but
that''s not an actual error, it''s a style issue.
Richard
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