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diff --git a/src/darray.h b/src/darray.h
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-/****************************************************************************
- * bfs                                                                      *
- * Copyright (C) 2019-2022 Tavian Barnes <tavianator@tavianator.com>        *
- *                                                                          *
- * Permission to use, copy, modify, and/or distribute this software for any *
- * purpose with or without fee is hereby granted.                           *
- *                                                                          *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES *
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF         *
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR  *
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES   *
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN    *
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF  *
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.           *
- ****************************************************************************/
-
-/**
- * A dynamic array library.
- *
- * darrays are represented by a simple pointer to the array element type, like
- * any other array.  Behind the scenes, the capacity and current length of the
- * array are stored along with it.  NULL is a valid way to initialize an empty
- * darray:
- *
- *     int *darray = NULL;
- *
- * To append an element to a darray, use the DARRAY_PUSH macro:
- *
- *     int e = 42;
- *     if (DARRAY_PUSH(&darray, &e) != 0) {
- *             // Report the error...
- *     }
- *
- * The length can be retrieved by darray_length().  Iterating over the array
- * works like normal arrays:
- *
- *     for (size_t i = 0; i < darray_length(darray); ++i) {
- *             printf("%d\n", darray[i]);
- *     }
- *
- * To free a darray, use darray_free():
- *
- *     darray_free(darray);
- */
-
-#ifndef BFS_DARRAY_H
-#define BFS_DARRAY_H
-
-#include <stddef.h>
-
-/**
- * Get the length of a darray.
- *
- * @param da
- *         The array in question.
- * @return
- *         The length of the array.
- */
-size_t darray_length(const void *da);
-
-/**
- * @internal Use DARRAY_PUSH().
- *
- * Push an element into a darray.
- *
- * @param da
- *         The array to append to.
- * @param item
- *         The item to append.
- * @param size
- *         The size of the item.
- * @return
- *         The (new) location of the array.
- */
-void *darray_push(void *da, const void *item, size_t size);
-
-/**
- * @internal Use DARRAY_PUSH().
- *
- * Check if the last darray_push() call failed.
- *
- * @param da
- *         The darray to check.
- * @return
- *         0 on success, -1 on failure.
- */
-int darray_check(void *da);
-
-/**
- * Free a darray.
- *
- * @param da
- *         The darray to free.
- */
-void darray_free(void *da);
-
-/**
- * Push an item into a darray.
- *
- * @param da
- *         The array to append to.
- * @param item
- *         A pointer to the item to append.
- * @return
- *         0 on success, -1 on failure.
- */
-#define DARRAY_PUSH(da, item) \
-	(darray_check(*(da) = darray_push(*(da), (item), sizeof(**(da) = *(item)))))
-
-#endif // BFS_DARRAY_H