libubox/utils.h
Felix Fietkau 9c8ab5d64c utils: move ARRAY_SIZE from uloop to utils.h
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
2012-12-31 15:24:27 +01:00

41 lines
1.4 KiB
C

/*
* utils - misc libubox utility functions
*
* Copyright (C) 2012 Felix Fietkau <nbd@openwrt.org>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* 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.
*/
#ifndef __LIBUBOX_UTILS_H
#define __LIBUBOX_UTILS_H
#include <sys/types.h>
/*
* calloc_a(size_t len, [void **addr, size_t len,...], NULL)
*
* allocate a block of memory big enough to hold multiple aligned objects.
* the pointer to the full object (starting with the first chunk) is returned,
* all other pointers are stored in the locations behind extra addr arguments.
* the last argument needs to be a NULL pointer
*/
#define calloc_a(len, ...) __calloc_a(len, ##__VA_ARGS__)
void *__calloc_a(size_t len, ...);
#ifndef ARRAY_SIZE
#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
#endif
#endif