Making struct with element from another struct (error: expected specifier-qualifier-list before 'type')

Question

typedef struct testone
{
    int x;
    int y;
}t1;


 typedef struct testtwo
 {
    t1 *t;
    t->x curr_x


 }t2;

I am getting the below error, anyone know what the problem is?

error: expected specifier-qualifier-list before 't'

Thanks

Answer 1

t->x isn't a defined type. all variables in structs, and in general, must be a type either defined by c or defined by you. I think what you are trying to do is have

typedef struct testtwo
{
    t1 *t;
    int curr_x;
}t2;

and then when you intialize a t2 struct you can assign the t1->x value to t2.curr_x

Answer 2

When you use x->y , You should initialize address of y in x , It's normal to get error. So You can use old style such as xy