Indefinite-length array as member of struct: how?

[Randy Ellis]

In article <7360 at c3pe.UUCP>, charles at c3pe.UUCP (Charles Green) writes:
> I have an application where I'm building and manipulating a stack of
> variable-length strings.  I've set up a linked list of nodes, each one
> declared as follows:
> When I know how long the string is I'm pushing onto the stack, I say:
> 	nodeptr = malloc(strlen(data)+5);
> to cover the struct node* and terminating NULL, and then simply
> 	strcpy(nodeptr->string, data);
> The only problem I have is with compilation:  I get a warning about the
> zero-length element "string".  I'd like to find out the "correct" way to
> do this.  I'll be glad to summarize any Emailed responses, of course.

Does this fit your needs?  Change string into a char pointer, then allocate
dynamic memory for the string and save the pointer into nodeptr->string.
	struct node {
		struct node* next;
		char	*string;
	} *nodeptr;
	nodeptr = malloc(sizeof(struct node));
	nodeptr->string = malloc(strlen(data)+1);
	strcpy(nodeptr->string,data);
Good Luck!