c - 在函数 strcmp 中使用节点

Question

我有一个家庭作业问题，如下面的引文所述。这是我必须实现的一个简单功能。网上查了一下，发现有类似实现的函数，但没有解释。

对我的代码进行评分的程序只是说“wordCmp 使用时失败”。那么基本上关于如何以不同的方式处理这个问题有什么建议吗？只是评分者给出了如此广泛的回应，我不确定它可能有什么问题。

int wordCmp (struct inode* n1, struct inode* n2)

Returns an integer indicating the relationship between the strings in two nodes: A value greater than zero indicates that the first character that does not match has a greater value in n1->word than in n2->word; And a value less than zero indicates the opposite. You can use strcmp to implement this function.

struct inode {
  char *word;
};

int wordCmp (struct inode* n1, struct inode* n2){
     return strcmp(n1->word, n2->word);
}

Answer 1

基于this edit问题作者的解决方案是:

I made pointers that equaled the value of the words in the nodes and then compared them. I don't know why it worked though honestly it seems the same to me.

It said in the handout that we couldn't access the nodes fields directly; not sure why..., so I just implemented the following code so I did not have to access it directly. It does the exact same thing...

int wordCmp (struct inode* n1, struct inode* n2){

char* wordOne = nodeGetWord(n1);
char* wordTwo = nodeGetWord(n2);
return strcmp(wordOne, wordTwo);

}

nodeGetWord(struct lnode *node){
 return node->word;
}

That is all I did and it worked... Sorry if this seems dumb but it is what the grader took.