Implement an array of linked lists

Question

I would like to implement an array of linked lists (in order to implement a hash table).

I have a problem at the very beginning... I defined a linked list structure, and I initialized the array of linked lists like an array of pointer to a list : liste * Oblist[65003]; (Do i need to initialize it like this : liste * Oblist[65003] = {NULL};?)

And I want to get the list at the index 12121 (which is NULL for the moment), so I did

liste L = *Oblist[12121] ;

The program compiles without errors but when I run it I get a Segmentation fault (core dumped)

Here is the whole code :

typedef struct Doublet {char * car ; struct Doublet * cdr ;}* liste ;

liste * Oblist[65003];

int main(void){

    liste L = *Oblist[32123] ;

    return 0;
}

Thank you in advance ;)

Answer 1

You have a few problems. liste is typedef'ed as a pointer to a struct Doublet, so it should be

liste Oblist[65003];

...

liste L = Oblist[32123];

Or, alternatively:

typedef struct Doublet { ... etc. } liste;

...

liste *Oblist[65003];

...

liste *list = Oblist[32123];