Hi all Given the following structure Code: typedef struct value_pair { char name[40]; int attribute; int type; int length; /* of strvalue */ uint32_t lvalue; LRAD_TOKEN operator; uint8_t strvalue[MAX_STRING_LEN]; ATTR_FLAGS flags; struct value_pair *next; } VALUE_PAIR; I am not understanding this small function Code: void pairadd(VALUE_PAIR **first, VALUE_PAIR *add) { VALUE_PAIR *i; if (*first == NULL) { *first = add; return; } for(i = *first; i->next; i = i->next) ; i->next = add; } what for loop is doing??? this function is called in the following sequence pairadd(&list, vp); where list and vp are again pointers of type VALUE_PAIR thanks in advance regards punith
The for loop is moving through the linked list until it reaches the end, as indicated by the next pointer being null. Now, you've gotten your free help. Perhaps you could do a favor in return. USE CODE TAGS AROUND YOUR CODE. If you haven't read the "Before you post a query" thread, yet, please do that. Anything less is rude to your potential (free) helpers.