In C, going to create a new long nested structures

hectorsalamanca — Mon, 30 Jan 2023 14:32:33 GMT

What is the best/cleanest approach to start (in a local function) a lengthy chain of nested structures where each structure just holds pointers to other structures, as seen below:

typedef struct A{ struct B{ struct C *c /* OPTIONAL */; struct D *d /* OPTIONAL */; struct E *e /* OPTIONAL */; struct F *f /* OPTIONAL */; } *b; struct G{ struct F *f /* OPTIONAL */; struct D *d /* OPTIONAL */; struct H *h /* OPTIONAL */; struct F *f /* OPTIONAL */; } *g; } a;

Each of the references to the nested structures link to structures that contain pointers to other nested structures (I know, it's weird!)

I believe I need to define a tmp pointer for each struct member and allocate memory for it, as well as a tmp struct variable and point the former to the latter:

B *b_ptr = CALLOC(1,sizeof(b_ptr)); B b_tmp; b_ptr = &b_tmp; b_tmp.itsMember1 = CALLOC(1,sizeof(itsMember1)); TypeOfItsMember1 itsMember1_tmp; .. ..

This will necessitate a plethora of local variables and excruciatingly repetitious code. Is there a better method to thoroughly initialise the parent struct?

topic In C, going to create a new long nested structures in Developers Questions

In C, going to create a new long nested structures