inicializing a structure with arrays of arrays

Asked May 08 '20 at 17:52

Active May 08 '20 at 17:54

Viewed 16 times

So i have this structure jogo and i want to create a variable of that type and inicialize it and modify it.

typedef struct jogo 
{
   int ident;/*idp of a product*/
   char *nome; /* string that describes a team eg. Barcelona */
   char **equipas; /*array of strings e.g. ["Barcelona","Madrid"]*/
   int *score; /*array of ints e.g. [1,2]*/
}* jogo;

jogo *sistema_jog;

To do that i created an init funcion the problem is that when i call it on the main i get segmentation fault core dumped error and i dont understand why.

void init(jogo s)
{
    s = (struct jogo*) calloc(MAX_SIZE,sizeof(struct jogo));
    s->equipas = (char**) calloc(2,sizeof(char));
}

Really any help would be appreciated.

edited May 08 '20 at 17:54

asked May 08 '20 at 17:52

Martim Correia

@MikeCAT unfortunately that doesnt resolve my question, so what should i do??? – Martim Correia May 08 '20 at 18:01
Change the argument `s`'s type to a pointer to `jogo`, modify the function body `init` to meet with the change, and modify the caller of `init` to pass a pointer to the variable to modify. – MikeCAT May 08 '20 at 18:02
i did part of that but in the body i get this `error expression must have pointer-to-struct-or-union type` – Martim Correia May 08 '20 at 18:05
What you want to do may be `(*s)->equipas` – MikeCAT May 08 '20 at 18:06
could u type what u mean pls because im not understanding. – Martim Correia May 08 '20 at 18:08
Typical what want `pointer-to-struct-or-union type` is the arrow operator `->`, so I guessed that you are struggling to modify the `s->equipas = (char**) calloc(2,sizeof(char));` part. – MikeCAT May 08 '20 at 18:09
no the problem is that im struggling to inicialize the variable *sistema_jog – Martim Correia May 08 '20 at 18:11
Please post a [Minimal, Reproducible Example](https://stackoverflow.com/help/minimal-reproducible-example). Note that `sistema_jog` is a pointer to a pointer to `struct jogo`. – MikeCAT May 08 '20 at 18:11
Ok i rewrite another question – Martim Correia May 08 '20 at 18:14

inicializing a structure with arrays of arrays

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