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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 | /* $Id: macros.h 10099 2016-11-04 22:21:59Z iulius $
*
* Some standard helpful macros.
*
* The canonical version of this file is maintained in the rra-c-util package,
* which can be found at <https://www.eyrie.org/~eagle/software/rra-c-util/>.
*
* Written by Russ Allbery <eagle@eyrie.org>
*
* The authors hereby relinquish any claim to any copyright that they may have
* in this work, whether granted under contract or by operation of law or
* international treaty, and hereby commit to the public, at large, that they
* shall not, at any time in the future, seek to enforce any copyright in this
* work against any person or entity, or prevent any person or entity from
* copying, publishing, distributing or creating derivative works of this
* work.
*/
#ifndef INN_MACROS_H
#define INN_MACROS_H 1
#include "inn/portable-macros.h"
/*
* Used for iterating through arrays. ARRAY_SIZE returns the number of
* elements in the array (useful for a < upper bound in a for loop) and
* ARRAY_END returns a pointer to the element past the end (ISO C99 makes it
* legal to refer to such a pointer as long as it's never dereferenced).
*/
#define ARRAY_SIZE(array) (sizeof(array) / sizeof((array)[0]))
#define ARRAY_END(array) (&(array)[ARRAY_SIZE(array)])
/* Used to name the elements of the array passed to pipe. */
#define PIPE_READ 0
#define PIPE_WRITE 1
/* Used for unused parameters to silence gcc warnings. */
#define UNUSED __attribute__((__unused__))
#endif /* INN_MACROS_H */
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