Thread: strcpy and strtok

Hi all!

I want to save a strtok into p->word. I tried with this:

Code:

strcpy(p->word, (strtok(NULL, " ")));

...but it doesn't work. Any ideas?

Thanks in advance for help!

Since that doesn't work, you might as well rewrite it so that you can check strtok's return value. If it returns NULL earlier than you expected, you did something wrong. For example, when you call strtok(NULL, " "); NULL only works as a first argument after calling strtok with a different argument than NULL. This includes pointers that point to NULL.

Thanks whiteflags!

The problem seems to be that the first strtok isn't in the same function as the other, and I don't know how to pass p->word into the second function. Here is a sketch of the code that doesn't work:

Code:

some headers...

struct node
{
	char *word;
	struct node *next;
};

char function(char* p->word)
{
...some code
	strcpy(p->word, (strtok(NULL, " ")));;
...some code.
}

int main(void)
{
	p = malloc(sizeof (struct *node));
	p->word = malloc(40);

	...some code...
	strcpy(p->word, (strtok(buf, " ")));;
	function(p->word);
	...some code...
}

That doesn't even compile. Type that in your IDE and give it a test compile; see what you can fix with the error messages. Then follow the rest of the advice in this thread. I still think that you need to rewrite it so that you can check strtok's return value.

Thank you for your comment quzah. It solved my problem