void get_modeles_names(int mode, char ** modeles)
{
        FILE * collection = get_collection_file();
        int i = 0;
        char * line = NULL;
        size_t size = 0;

        while (getline(&line, &size, collection) != -1) {
            if (strstr(line, entete)) {
                modeles[i] = (char*) malloc(strlen(line) * sizeof (char));
                modeles[i] = line;

                modeles[i][strlen(modeles[i]) - 1] = '';
                //replaces the final 'n' by ''

                i++;
                line = NULL;
            }
        }

        if (line)
            free(line);

        fclose(collection);
}

void det_langue(char * w)
{
    int nb_modele = nb_modeles();

    char ** modeles = (char **) malloc(nb_modele * sizeof (char *));
    get_modeles_names(mode, modeles);

    double * resultats = (double *) malloc(nb_modele * sizeof (double));

    int i;
    for (i = 0; i < nb_modele; i++) {
        resultats[i] = calculate_result (w, modeles[i]);
        }
    }

    for (i = 0; i < nb_modele; i++) {
        free(modeles[i]);
    }
    free(modeles);
    free(resultats);
}

==30547== Command: ./projet -d pomme -m 1
==30547==
pomme -> french
==30547==
==30547== HEAP SUMMARY:
==30547==     in use at exit: 113 bytes in 4 blocks
==30547==   total heap usage: 40 allocs, 36 frees, 30,906 bytes allocated
==30547==
==30547== 113 bytes in 4 blocks are definitely lost in loss record 1 of 1
==30547==    at 0x4C2DB8F: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==30547==    by 0x40163E: get_modeles_names (gestion_collection_modeles.c:120)
==30547==    by 0x401919: det_langue (det_langue.c:12)
==30547==    by 0x40189E: main (Main.c:76)
==30547==
==30547== LEAK SUMMARY:
==30547==    definitely lost: 113 bytes in 4 blocks
==30547==    indirectly lost: 0 bytes in 0 blocks
==30547==      possibly lost: 0 bytes in 0 blocks
==30547==    still reachable: 0 bytes in 0 blocks
==30547==         suppressed: 0 bytes in 0 blocks
==30547==
==30547== For counts of detected and suppressed errors, rerun with: -v
==30547== ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 0 from 0)