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sys/param.h: Cleanup.

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* Minor tweaks to POSIX sys/param.h for style.

 * Don't redefine alignment macros in BSD sys/param.h even conditionally.
   And add a few more macros from the real BSD sys/param.h, for convenience.
   (Most of these are also declared in musl and glibc's sys/param.h)
This commit is contained in:
Augustin Cavalier 2024-10-14 13:37:42 -04:00
parent e5f515c322
commit 8bacd281ba
2 changed files with 18 additions and 32 deletions
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37
headers/compatibility/bsd/sys/param.h
View File

@ -1,5 +1,5 @@
/*
* Copyright 2006-2010 Haiku Inc. All Rights Reserved.
* Copyright 2006-2024, Haiku Inc. All rights reserved.
* Distributed under the terms of the MIT License.
*/
#ifndef _BSD_SYS_PARAM_H_
@ -13,34 +13,23 @@
#ifdef _DEFAULT_SOURCE
#ifndef _ALIGNBYTES
# define _ALIGNBYTES 7
#endif
#ifndef _ALIGN
# define _ALIGN(p) (((unsigned)(p) + _ALIGNBYTES) & ~_ALIGNBYTES)
#endif
#ifndef ALIGNBYTES
# define ALIGNBYTES _ALIGNBYTES
#endif
#ifndef ALIGN
# define ALIGN(p) _ALIGN(p)
#endif
#ifndef howmany
# define howmany(x, y) (((x) + ((y) - 1)) / (y))
#endif
#ifndef MAXLOGNAME
# define MAXLOGNAME 32
#endif
#define MAXLOGNAME 33
#define NBBY 8
#define nitems(x) (sizeof((x)) / sizeof((x)[0]))
#define ALIGNBYTES _ALIGNBYTES
#define ALIGN(p) _ALIGN(p)
#ifndef howmany
#define howmany(x, y) (((x)+((y)-1))/(y))
#endif
#define nitems(x) (sizeof((x)) / sizeof((x)[0]))
#define roundup(x, y) ((((x)+((y)-1))/(y))*(y))
#define rounddown(x, y) (((x)/(y))*(y))
#define powerof2(x) ((((x)-1)&(x))==0)
#endif /* _DEFAULT_SOURCE */
#endif /* _BSD_SYS_PARAM_H_ */

13
headers/posix/sys/param.h
View File

@ -1,5 +1,5 @@
/*
* Copyright 2002-2012 Haiku, Inc. All Rights Reserved.
* Copyright 2002-2024, Haiku, Inc. All rights reserved.
* Distributed under the terms of the MIT License.
*/
#ifndef _SYS_PARAM_H
@ -9,11 +9,13 @@
#include <limits.h>
#define MAXHOSTNAMELEN (256) /* maximum possible length of this machine's hostname */
#define MAXPATHLEN PATH_MAX
#define MAXSYMLINKS SYMLOOP_MAX
#define NOFILE OPEN_MAX
#ifndef MIN
# define MIN(a,b) (((a) < (b)) ? (a) : (b))
#endif
@ -22,12 +24,7 @@
#endif
#define _ALIGNBYTES (sizeof(long) - 1)
#define _ALIGN(p) \
(((u_long)(p) + _ALIGNBYTES) &~ _ALIGNBYTES)
#define _ALIGN(p) (((u_long)(p) + _ALIGNBYTES) &~ _ALIGNBYTES)
/* maximum possible length of this machine's hostname */
#ifndef MAXHOSTNAMELEN
# define MAXHOSTNAMELEN 256
#endif
#endif /* _SYS_PARAM_H */