Thread: send one part of struct array to function

lets say i have this

Code:

typedef struct {int x}stru;
void fun(stru *array){
 array->x=5;
}
int main()
{ 
 stru arra[5];
  fun(array[0])
}

the problem is that i want to send only one place of the array not all of it
can you tell me whats the wrong code?

You don't return an int from main like you're supposed to. You also have a typo, you declare it as arra, but pass it as array. Also, your function expects a stru *, but you pass array[0] which is just a stru. You either need to change the funciton definition to take a stru, or change the function call to pass the address of array[0].

hello
how can i change the function call to send the arra position 4 for example
i need to leave function declare as it is

why don't you just pass a pointer to the structure. ?
what do you mean that "one place"? do you mean that only one struct in a array of structs?

Originally Posted by cable

hello
how can i change the function call to send the arra position 4 for example
i need to leave function declare as it is

Code:

fun(&arry[3]);

You really should pop open your textbooks and re-read the sections on arrays and pointers.

Originally Posted by Salem

fun(&array[4])
ought to do it.

Ummm... isn't that position 5?

guys please give me an code example for the next question

Code:

typedef struct {int x}stru;
void fun(stru *array){
 array->x=5;
}
int main()
{ 
 stru arra[5];
  fun(&arra[4])
return 0;
}

what change i need to do for this

Code:

fun(&arra[4])

(which is not working) to make it send the fifth struct of the array of struct arra
edit: or if you know a better way write it to me (always without changing the function declare)

Originally Posted by cable

edit:
anyone else? about my question

Originally Posted by cable

guys please give me an code example for the next question

We're not going to hand you a code sample. We actually have a policy about this. 10 months and 30 posts on this board, you should know that by know. You should also know we expect some effort from you towards solving your problems. We've told you what you need to know and where to read up on it. You have to put in a little effort yourself. Note, arrays in C start at 0 and go to size-1, so your array only has array[0] to array[4]. There is no array[5].

what change i need to do for this

Code:

fun(&arra[4])

(which is not working) to make it send the fifth struct of the array of struct arra

What's not working about it? You need to be specific. It looks like it's correctly sending the 5th element to me.

edit:
anyone else? about my question

Don't you just love it when they completely blow you off like that?