int ltbl_get_to (lookup_table *table, int key) {
ltbl_check (table);
assert (table->size > 0);
int *x = htbl_find (&(table->to), key);
if (x != NULL) {
return *x;
}
return 0;
}
int test_hash_table(void)
{
htbl t = htbl_init(NUM_SKEYS); // 64
ht_assert(!htbl_find(&t, "hello"));
ht_assert(htbl_insert(&t, "hello"));
ht_assert(htbl_find(&t, "hello"));
ht_assert(!htbl_find(&t, "goodbye"));
ht_assert(htbl_insert(&t, "goodbye"));
ht_assert(htbl_find(&t, "goodbye"));
ht_assert(htbl_delete(&t, "hello"));
ht_assert(!htbl_find(&t, "hello"));
ht_assert(htbl_find(&t, "goodbye"));
for (uint32_t i = 0; i < NUM_SKEYS; ++i) {
if (sprintf(skeys[i], "%" PRIu32, i) < 0) {
goto error;
}
ht_assert(htbl_insert(&t, skeys[i]));
}
for (uint32_t i = 0; i < NUM_SKEYS; ++i) {
//fprintf(stderr, "%" PRIu32 "\n", i);
if (!htbl_find(&t, skeys[i])) {
fprintf(stderr, "Error: %s %" PRIu32 "\n", skeys[i], i);
goto error;
}
ht_assert(htbl_delete(&t, skeys[i]));
ht_assert(!htbl_find(&t, skeys[i]));
}
htbl_destroy(t);
return(0);
error:
htbl_destroy(t);
return(-1);
}
/* consider adding bonus arg that specifies which vertex */
void stats(char *cmd)/* if i, do both */
{
int done_nothing = 1; /* has done nothing so far */
char *subcmd;
char *vertex;
int i;
int j;
if(strcmp("stats", cmd) < 0){
cmd += 6;
} else {
cmd += 2;
}
if((subcmd = strstr(cmd, "-n")) != NULL){/* neighbors command */
vertex = extract_vertex(subcmd, &done_nothing);
if(vertex == NULL){
show_neighbors(adj_mat, dj_arr, size);
} else if((i = htbl_find(t, vertex)) == -1){
printf(" -error [-n \"vertex\"]: no such vertex\n");
printf(" -try typing \"s -v \" for a list of vertices\n");
} else {
printf("neighbors of %s:\n", dj_arr[i]->name);
for(j = 0; j < size; j++){
if(adj_mat[(i * size) + j] != NULL){
printf(" %s\n", dj_arr[j]->name);
}
}
}
free(vertex);
}
if((subcmd = strstr(cmd, "-c")) != NULL){/* connections command */
vertex = extract_vertex(subcmd, &done_nothing);
if(vertex == NULL){
show_connected(adj_mat, dj_arr, size);
} else if((i = htbl_find(t, vertex)) == -1){
printf(" -error [-c \"vertex\"]: no such vertex\n");
printf(" -try typing \"s -v\" for a list of vertices\n");
} else {
show_one_connection(adj_mat, dj_arr, size, i);
}
}
if(strstr(cmd, "-f") != NULL){/* current file command */
done_nothing = 0;
printf("********************************\n");
if(curr_file != NULL){
printf("working in file: %s\n", curr_file);
} else {
printf("no current working file\n");
}
printf("********************************\n");
}
if(strstr(cmd, "-v") != NULL){/* vertices command */
done_nothing = 0;
printf("current vertices:\n");
for(i = 0; i < size; i++)
printf(" %s\n", dj_arr[i]->name);
}
if(done_nothing)
printf(" -error: unrecognized command %s\n", cmd);
return;
}