我的代码编译正确,但在我的 insertLast 函数循环 4 次后,程序崩溃了。有人可以帮我理解为什么吗?
我之前发布了一个类似的问题,它帮助我发现了其他问题。我已经重写了函数,但我仍然有同样的问题。我的代码如下:
#include <stdio.h>
#include <stdlib.h>
#include "LinkedList.h"
int main (int argc, char* argv[])
{
int ii;
{
FILE* f; /*open file for reading to get ints*/
f = fopen(argv[1], "r");
if(f==NULL)
{
printf("Error: could not open file");
return 0;
}
LinkedList* canQueue=createList();
for(ii = 0; ii < 10; ii++)
{
TinCan* tempCan= (TinCan*) malloc(sizeof(TinCan));
fscanf(f, " WGT_%d", &tempCan[ii].weight);
insertLast(canQueue, tempCan); /*Inserts the new can into linked list*/
}
testLinkedList(canQueue);
}
return 0;
}
链表.h
typedef struct TinCan
{
int weight;
} TinCan;
typedef struct Node
{
TinCan* data;
struct Node *next;
} Node;
typedef struct LinkedList
{
Node *head;
} LinkedList;
void insertLast(LinkedList* list, TinCan *newData);
LinkedList* createList();
void testLinkedList(LinkedList* list);
链表.c
#include <stdio.h>
#include <stdlib.h>
#include "LinkedList.h"
LinkedList* createList() /*creates empty linked list*/
{
LinkedList* myList;
myList = (LinkedList*)malloc(sizeof(LinkedList));
myList->head = NULL;
return myList;
}
void insertLast(LinkedList* list, TinCan *newData)
{
Node* newNode = (Node*)malloc(sizeof(Node));
newNode->data = newData;
newNode->next = NULL;
if(list->head==NULL)
{
Node* current = (Node*)malloc(sizeof(Node));
list->head=newNode;
current=newNode;
}
else
{
Node* temp = (Node*)malloc(sizeof(Node));
temp = list->head;
while(temp->next!=NULL)
{
temp = temp->next;
}
temp->next = newNode;
}
printf("Looped\n");
}
void testLinkedList(LinkedList* list)
{
Node* current;
current = list->head;
while(current != NULL)
{
printf("Weight = %d\n", current->data->weight);
current = current->next;
}
}