Why doesn't double pointer modify the table?

Question

I have a question.

This is my structure :

typedef struct cell{

    char *mot;
    char *traduction;
    struct cell *suivant;


}cellule_t;

This is the main function where I call the function remplissage_hachage

int main()
{
    char *buffer = "hello";    
    cellule_t **tabMajeur;
    tabMajeur = malloc(HASH_MAX * sizeof(cellule_t *));
    memset(tabMajeur,0 ,HASH_MAX);
    FILE * file = fopen("fichier.txt","r");
    remplissage_hachage(tabMajeur,"fichier.txt");

}

The function remplissage_hachage takes tabMajeur as an argument:

void remplissage_hachage (cellule_t **tabMajeur,char *nomFichier)
{
    char  string1[20];
    cellule_t *copy;
    unsigned int indice;
    int boolean = 0;
    char *string2, *string3;
    cellule_t *c;


    FILE *fichier= fopen(nomFichier,"r");

    while(fgets(string1,100,fichier) != NULL)
    {
        string2 = strtok(string1,";");
        string3 = strtok(NULL,";"); 
        printf("string2 %s\n",string2);
        printf("string3 %s\n",string3);

        int indice = recherche(tabMajeur,string2,&boolean,c);

        if(boolean != 1) 
        {
            copy = tabMajeur[indice];
            tabMajeur[indice] = creationCellule(string2,string3);
            tabMajeur[indice]->suivant = copy;    
        }


    }

}

The problem is that after calling remplissage_hachage in main, tabMajeur is not modified even though I have passed it as a pointer. Can you explain to me why please?

Answer 1

have you checked that boolean!=1 after the call to recherche()? also you're unnecessarily opening the file twice, once in main() and once in remplissage_hachage().

if 'boolean' has the correct value then the other possible failure point is the while condition which will fail if the file is empty.