strings, sorting

Hi, guys,
I've been working on sorting an array of strings... It is a work in progress, I did not take into consideration blank spaces, uppercase or lowercase characters as of yet. I need to get thi sfunction into a working condition to work on details.
When I compile it (no warnings or erros at all, gcc) and run the program, it finishes. So I take a look in my sorted array file and I see just blank lines.
Can anybody tell me what happened?

Code:

void InsertionSort(char *arr[])
{
	char *helper = "......................";
	int i, j;


  for(i = 1; i < (int)strlen(arr[i])-1; i++) {
	strcpy(helper, arr[i]);
	j = i;
	while(j >= 1 && (strcmp(helper, arr[j-1])<0)) {
		strcpy(arr[j], arr[j-1]);
		j -= 1;
	}
	strcpy(arr[j], helper);
  }
}

I can give you a hint:

Code:

i < (int)strlen(arr[i])-1;

will not tell you how many strings there are in the array of strings.
You will have to pass that information to InsertionSort()
Kurt

Code:

	char *helper = "......................";
	strcpy(helper, arr[i]);

No no no no no no no.

char *helper gives you a pointer to a static string and you really shouldn't try to edit it at all. Use this instead:

Code:

  char helper[] = "......................";

I tried to correct my code the way you suggested but still gave me the same empty file (empty meaning blank lines, exactly as amny as there should be). I am re-writing my code from scratch now, I'll post again if I have questions...
Thanks.

Did you take ZuK's hint?