Thread: Inter-dependent structs for doubly-linked list

I'm trying to implement a different kind of doubly-linked list. It's made up of 2 different structs that are inter-dependent.

PHP Code:

[code]
typedef struct {
    int value;
    Child *child;
} Parent;

typedef struct {
    int value;
    Parent parent;
} Child;
[/code] 


What should I do for the compiler to know that Child data-type is defined below as struct?

You can forward declare the Child struct before you define the Parent struct. Note that this only works with pointers.

Code:

struct Child;

or typedef then declare

Code:

typedef struct child Child;
// OR
typedef struct child *Child;

struct child {
...
};