mirror of
https://codeberg.org/ziglang/zig.git
synced 2026-04-28 11:27:09 +03:00
Alex Rønne Petersen
28 lines
830 B
C
Vendored
28 lines
830 B
C
Vendored
/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 1982, 1986, 1989, 1993
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* The Regents of the University of California. All rights reserved.
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* (c) UNIX System Laboratories, Inc.
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*/
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#ifndef _SYS__PARAM_H_
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#define _SYS__PARAM_H_
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#define NBBY 8 /* number of bits in a byte */
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#define NBPW sizeof(int) /* number of bytes per word (integer) */
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/*
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* Macros for counting and rounding.
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*/
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#define nitems(x) (sizeof((x)) / sizeof((x)[0]))
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#ifndef howmany
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#define howmany(x, y) (((x)+((y)-1))/(y))
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#endif
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#define rounddown(x, y) (((x)/(y))*(y))
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#define rounddown2(x, y) __align_down(x, y) /* if y is power of two */
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#define roundup(x, y) ((((x)+((y)-1))/(y))*(y)) /* to any y */
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#define roundup2(x, y) __align_up(x, y) /* if y is powers of two */
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#define powerof2(x) ((((x)-1)&(x))==0)
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#endif /* _SYS__PARAM_H_ */ |