Thread: Replace Function I created

Okay, so my problem is I have created a replace function that allows an argument to choose which node to be replaced and enter a new one. I have a code that works fine, but it uses integers and I need it to use strings instead. My code with strings will not work and terminates the program after I enter what I want to replace the chosen word with. I will put the two codes below.

Code:

void rep(int i) { 
  int old, n;
  struct node* temp;
  temp = root;
  old = i;


  printf("\nEnter what you want to replace with: ");
  scanf("%d", &n);


  if(temp == NULL) {
    printf("No such index\n");
    return NULL;
}
  while (temp != NULL) {
  if(temp->data == old) {
    temp->data = n;
      printf("Replaced\n");


  }
  temp = temp->next;
}
}

And this is the code I need fixed:

Code:

// Command replace
void rep(char* i) { 
  char old, n;
  struct node* temp;
  temp = root;
  strcmp(old,i);


  printf("\nEnter what you want to replace with: ");
  scanf("%s", &n);


  if(temp == NULL) {
    printf("No such index\n");
    return NULL;
}
  while (temp != NULL) {
  if(strcmp(temp->text, old) == 0) {
    strcpy (temp->text, n);
    printf("Replaced\n");
  }
  temp = temp->next;
}
}

I don't understand your variables. What are root and text? What does your struct node look like? If you have more code, I think it would be helpful to me to be able to see the whole thing even if it is just this one function that should be concentrated on.