ininitialize

[bazzano]

Hey guys wat pointers would i have to initialize to NULL?

typedef struct category* CategoryTypePtr;
typedef struct item* ItemTypePtr;

/* Structure definitions. */
typedef struct price
{
   unsigned dollars;
   unsigned cents;
} PriceType;

typedef struct item
{
   char itemID[ID_LEN + 1];
   char itemName[MAX_NAME_LEN + 1];
   PriceType prices[NUM_PRICES];
   char itemDescription[MAX_DESC_LEN];
   ItemTypePtr nextItem;
} ItemType;

typedef struct category
{
   char categoryID[ID_LEN + 1];
   char categoryName[MAX_NAME_LEN + 1];
   char drinkType;      /* (H)ot or (C)old. */
   char categoryDescription[MAX_DESC_LEN];
   CategoryTypePtr nextCategory;
   ItemTypePtr headItem;
   unsigned numItems;
} CategoryType;

typedef struct gjc
{
   CategoryTypePtr headCategory;
   unsigned numCategories;
} GJCType;

int commandLineArguments(int argc, char* argv[]);
int countToken(FILE *fp, char* temp, int tokenPerLine);
#endif

[ZuK]

Hey guys wat pointers would i have to initialize to NULL?

What about all of them unless they aren't initialized to another value ?
Kurt

[bazzano]

so its only the variables inside the structs that need to be initialized along with the pointers

[quzah]

Structures are just like any other variable. They're uninitialized when allocated, unless you take specific steps to make it otherwise. Thus, if a variable is not specifically set to some value, then it has some arbitrary value.


Quzah.