diff options
Diffstat (limited to 'pw/bitmap.h')
-rw-r--r-- | pw/bitmap.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/pw/bitmap.h b/pw/bitmap.h new file mode 100644 index 0000000..570c678 --- /dev/null +++ b/pw/bitmap.h @@ -0,0 +1,52 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause-FreeBSD + * + * Copyright (C) 1996 + * David L. Nugent. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY DAVID L. NUGENT AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL DAVID L. NUGENT OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD$ + */ + +#ifndef _BITMAP_H_ +#define _BITMAP_H_ + +#include <sys/cdefs.h> + +struct bitmap +{ + int size; + unsigned char *map; +}; + +__BEGIN_DECLS +struct bitmap bm_alloc(int size); +void bm_dealloc(struct bitmap * bm); +void bm_setbit(struct bitmap * bm, int pos); +void bm_clrbit(struct bitmap * bm, int pos); +int bm_isset(struct bitmap * bm, int pos); +int bm_firstunset(struct bitmap * bm); +int bm_lastset(struct bitmap * bm); +__END_DECLS + +#endif /* !_BITMAP_H */ |