80 lines
2.5 KiB
C
80 lines
2.5 KiB
C
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/*
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* Copyright (c) 1991 Carnegie Mellon University
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* All Rights Reserved.
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*
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* Permission to use, copy, modify and distribute this software and its
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* documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
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* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the rights
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* to redistribute these changes.
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*/
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/*
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* Standard C macros
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*
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**********************************************************************
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* HISTORY
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* 02-Feb-86 Glenn Marcy (gm0w) at Carnegie-Mellon University
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* Added check to allow multiple or recursive inclusion of this
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* file. Added bool enum from machine/types.h for regular users
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* that want a real boolean type.
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*
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* 29-Dec-85 Glenn Marcy (gm0w) at Carnegie-Mellon University
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* Also change spacing of MAX and MIN to coincide with that of
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* sys/param.h.
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*
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* 19-Nov-85 Glenn Marcy (gm0w) at Carnegie-Mellon University
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* Changed the number of tabs between TRUE, FALSE and their
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* respective values to match those in sys/types.h.
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*
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* 17-Dec-84 Glenn Marcy (gm0w) at Carnegie-Mellon University
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* Only define TRUE and FALSE if not defined. Added caseE macro
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* for using enumerated types in switch statements.
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*
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* 23-Apr-81 Mike Accetta (mja) at Carnegie-Mellon University
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* Added "sizeofS" and "sizeofA" macros which expand to the size
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* of a string constant and array respectively.
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*
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**********************************************************************
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*/
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#ifndef _C_INCLUDE_
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#define _C_INCLUDE_
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#define ABS(x) ((x)>=0?(x):-(x))
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#define MIN(a,b) (((a)<(b))?(a):(b))
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#define MAX(a,b) (((a)>(b))?(a):(b))
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#ifndef FALSE
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#define FALSE 0
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#endif FALSE
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#ifndef TRUE
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#define TRUE 1
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#endif TRUE
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#define CERROR (-1)
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#ifndef bool
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typedef enum { false = 0, true = 1 } bool;
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#endif bool
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#define sizeofS(string) (sizeof(string) - 1)
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#define sizeofA(array) (sizeof(array)/sizeof(array[0]))
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#define caseE(enum_type) case (int)(enum_type)
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#endif _C_INCLUDE_
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