[英]C : Dereferencing pointer to incomplete type error
我在C中创建了一个联系人链接列表。它运行正常。 但现在我想为指定的联系人写一个删除函数(按名称)我得到Error:"dereferencing pointer to incomplete type"
。 这是我的代码:
struct contact
{
char name[100];
char number[20];
struct contact *next;
};
int deleteByName(struct contact **hptr, char *name)
{
struct student *prev = NULL;
struct student *temp = *hptr;
while (strcmp(temp->name /*The Error is Here*/ , name) != 0 && (temp->next) != NULL)
{
prev = temp;
temp = temp->next;
}
if (strcmp(temp->name, name) == 0)
{
if (prev == NULL)
*hptr = temp->next;
else
prev->next = temp->next;
free(temp);
return 0;
}
printf("\nNAME '%s' WAS NOT FOUND TO BE DELETED.", name);
return -1;
}
我想知道为什么我得到这个错误(尽管定义了struct contact。)。 谢谢。
你的next
指针类型是contact
- 假设这是一个拼写错误 - 这是纠正错误的错误代码 - 这编译 - HTH!
struct student
{
char name[100];
char number[20];
struct student *next;
};
int deleteByName(struct student **hptr, char *name)
{
struct student *prev = NULL;
struct student *temp = *hptr;
while (strcmp(temp->name, name) != 0 && (temp->next) != NULL)
{
prev = temp;
temp = temp->next; //***No Error now***
}
if (strcmp(temp->name, name) == 0)
{
if (prev == NULL)
*hptr = temp->next;
else
prev->next = temp->next;
free(temp);
return 0;
}
printf("\nNAME '%s' WAS NOT FOUND TO BE DELETED.", name);
return -1;
}
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