Please help with a few things

[HAssan]

Thanks cwr for your advice it really did help clear up a few things.

But I just don'nt know how to pass the parameter to the gunction test. I want to pass the sturcture as a function parameter and uses it's variables in the new function. I was hoping If somebody can show me how to do it.

typedef struct{
	int number;
	int place;
	int postcode;
} information_t;

int test(information_t *in);

int main()
{
	information_t information;
	information *in;
	
printf(" Please enter the number: ");
scanf(" %d",&information.number);

printf(" Please enter the place: ");
scanf(" %d",&information.place);

printf(" please enter the postcode: ");
scanf(" %d",&information.postcode);

test(&information_t  *in);

return 0;
}

int test(information_t  *in)
{
	int position;
	position= scanf(" %d%d%d", &in->number, &in->place, &in->postcode);
	
return(position);
}

[XSquared]

test(&information);

[cbastard]

information_t information;
information *in;

test(&information_t *in);

[/code]

check this error.

[dwks]

So to pass a pointer to a function that expects a pointer, don't use an ampersand:

void test(int *i);

int *p;
test(p);  /* no ampersand */

But to pass a regular variable to a function that expects a pointer, use an ampersand:

void test(int *i);

int integer;
test(&integer);

And finally, to pass a pointer to a function that expects a regular variable, dereference the pointer:

void test(int i);

int *p;
test(*p);