Char array strings problem

First the code:

Code:

---

typedef struct {

char *data_string

} obs

int string_to_num(char string_in, int *string_out)
{

  char    *temp;

  temp = malloc((strlen(string_in)+1) * sizeof(char));

  strcpy(temp, &qstring_in);

  if (*temp == 'P') /* Test Passed. */
    *string_out = 1;
 
  return 0;
}

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problem is in my code I refer to a data pointer that points to the structure and -> to the data_string.

I don't know how to pass it as an argument into string_to_num() as its not a char but a pointer...

Does that make sense?

First off:

Code:

---

int string_to_num(char string_in, int *string_out)

---

string_in is not even a char *ptr, it's just a single char.

Anyway, if you have:

Code:

---

struct obs *obs_ptr;

---

and you have malloc'd space for it AND the data_string inside, you can submit it to sting_to_num:

Code:

---

string_to_num(obs_ptr->data_string,...

---

Beyond that, I'm glad to see you are doing this a little bit at a time rather than write the entire function first and then be puzzled at what part of it doesn't work ;)