/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License, Version 1.0 only * (the "License"). You may not use this file except in compliance * with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* Copyright (c) 1988 AT&T */ /* All Rights Reserved */ #ifndef _MACROS_H #define _MACROS_H #pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.3.1.7 */ #include #include #ifdef __cplusplus extern "C" { #endif /* * numeric() is useful in while's, if's, etc., but don't use *p++ * max() and min() depend on the types of the operands * abs() is absolute value */ #define numeric(c) ((c) >= '0' && (c) <= '9') #define max(a, b) ((a) < (b) ? (b) : (a)) #define min(a, b) ((a) > (b) ? (b) : (a)) #define abs(x) ((x) >= 0 ? (x) : -(x)) #define compare(str1, str2) strcmp((str1), (str2)) #define equal(str1, str2) (strcmp((str1), (str2)) == 0) #define length(str) strlen(str) #define size(str) (strlen(str) + 1) /* * The global variable Statbuf is available for use as a stat(II) * structure. Note that "stat.h" is included here and should * not be included elsewhere. * Exists(file) returns 0 if the file does not exist; * the flags word if it does (the flags word is always non-zero). */ extern struct stat Statbuf; #define exists(file) (stat(file, &Statbuf) < 0 ? 0 : Statbuf.st_mode) /* * SAVE() and RSTR() use local data in nested blocks. * Make sure that they nest cleanly. */ #define SAVE(name, place) { int place = name; #define RSTR(name, place) name = place; } /* * Use: DEBUG(sum,d) which becomes fprintf(stderr,"sum = %d\n",sum) * * Note: Sccsid[] strings are still supported but not the prefered * method of labeling files. Use #ident. */ #ifdef __STDC__ #define DEBUG(var, type) fprintf(stderr, #var "= %" #type "\n", var) #define SCCSID(arg) static char Sccsid[] = #arg #else #define DEBUG(var, type) fprintf(stderr, "var = %type\n", var) #define SCCSID(arg) static char Sccsid[] = "arg" #endif /* * Use of ERRABORT() will cause libS.a internal * errors to cause aborts */ #define ERRABORT() _error() { abort(); } /* * Use of USXALLOC() is required to force all calls to alloc() * (e.g., from libS.a) to call xalloc(). */ #define NONBLANK(p) while (*(p) == ' ' || *(p) == '\t') (p)++ /* * A global null string. */ extern char Null[1]; /* * A global error message string. */ extern char Error[128]; #ifdef __cplusplus } #endif #endif /* _MACROS_H */