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// Copyright © Tavian Barnes <tavianator@tavianator.com>
// SPDX-License-Identifier: 0BSD
#include "prelude.h"
#include "bfs.h"
#include "list.h"
#include "tests.h"
struct item {
int n;
struct item *next;
};
struct list {
struct item *head;
struct item **tail;
};
static bool check_list_items(struct list *list, int *array, size_t size) {
struct item **cur = &list->head;
for (size_t i = 0; i < size; ++i) {
if (!bfs_check(*cur != NULL)) {
return false;
}
int n = (*cur)->n;
if (!bfs_check(n == array[i], "%d != %d", n, array[i])) {
return false;
}
cur = &(*cur)->next;
}
if (!bfs_check(*cur == NULL)) {
return false;
}
if (!bfs_check(list->tail == cur)) {
return false;
}
return true;
}
#define ARRAY(...) (int[]){ __VA_ARGS__ }, countof((int[]){ __VA_ARGS__ })
#define EMPTY() NULL, 0
void check_list(void) {
struct list l1;
SLIST_INIT(&l1);
bfs_verify(check_list_items(&l1, EMPTY()));
struct list l2;
SLIST_INIT(&l2);
bfs_verify(check_list_items(&l2, EMPTY()));
SLIST_EXTEND(&l1, &l2);
bfs_verify(check_list_items(&l1, EMPTY()));
struct item i10 = { .n = 10 };
SLIST_APPEND(&l1, &i10);
bfs_verify(check_list_items(&l1, ARRAY(10)));
SLIST_EXTEND(&l1, &l2);
bfs_verify(check_list_items(&l1, ARRAY(10)));
SLIST_SPLICE(&l1, &l1.head, &l2);
bfs_verify(check_list_items(&l1, ARRAY(10)));
struct item i20 = { .n = 20 };
SLIST_PREPEND(&l2, &i20);
bfs_verify(check_list_items(&l2, ARRAY(20)));
SLIST_EXTEND(&l1, &l2);
bfs_verify(check_list_items(&l1, ARRAY(10, 20)));
bfs_verify(check_list_items(&l2, EMPTY()));
struct item i15 = { .n = 15 };
SLIST_APPEND(&l2, &i15);
SLIST_SPLICE(&l1, &i10.next, &l2);
bfs_verify(check_list_items(&l1, ARRAY(10, 15, 20)));
bfs_verify(check_list_items(&l2, EMPTY()));
SLIST_EXTEND(&l1, &l2);
bfs_verify(check_list_items(&l1, ARRAY(10, 15, 20)));
SLIST_SPLICE(&l1, &i10.next, &l2);
bfs_verify(check_list_items(&l1, ARRAY(10, 15, 20)));
SLIST_SPLICE(&l1, &l1.head, &l2);
bfs_verify(check_list_items(&l1, ARRAY(10, 15, 20)));
struct item i11 = { .n = 11 };
struct item i12 = { .n = 12 };
SLIST_APPEND(&l2, &i11);
SLIST_APPEND(&l2, &i12);
SLIST_SPLICE(&l1, &l1.head->next, &l2);
bfs_verify(check_list_items(&l1, ARRAY(10, 11, 12, 15, 20)));
}
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