1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* Copyright (c) 1988 AT&T */ 23 /* All Rights Reserved */ 24 25 26 #ifndef _MACROS_H 27 #define _MACROS_H 28 29 #pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.3.1.7 */ 30 31 #include <sys/types.h> 32 #include <sys/stat.h> 33 34 #ifdef __cplusplus 35 extern "C" { 36 #endif 37 38 /* 39 * numeric() is useful in while's, if's, etc., but don't use *p++ 40 * max() and min() depend on the types of the operands 41 * abs() is absolute value 42 */ 43 #define numeric(c) ((c) >= '0' && (c) <= '9') 44 #define max(a, b) ((a) < (b) ? (b) : (a)) 45 #define min(a, b) ((a) > (b) ? (b) : (a)) 46 #define abs(x) ((x) >= 0 ? (x) : -(x)) 47 48 #define compare(str1, str2) strcmp((str1), (str2)) 49 #define equal(str1, str2) (strcmp((str1), (str2)) == 0) 50 #define length(str) strlen(str) 51 #define size(str) (strlen(str) + 1) 52 53 /* 54 * The global variable Statbuf is available for use as a stat(II) 55 * structure. Note that "stat.h" is included here and should 56 * not be included elsewhere. 57 * Exists(file) returns 0 if the file does not exist; 58 * the flags word if it does (the flags word is always non-zero). 59 */ 60 61 extern struct stat Statbuf; 62 #define exists(file) (stat(file, &Statbuf) < 0 ? 0 : Statbuf.st_mode) 63 64 /* 65 * SAVE() and RSTR() use local data in nested blocks. 66 * Make sure that they nest cleanly. 67 */ 68 #define SAVE(name, place) { int place = name; 69 #define RSTR(name, place) name = place; } 70 71 /* 72 * Use: DEBUG(sum,d) which becomes fprintf(stderr,"sum = %d\n",sum) 73 * 74 * Note: Sccsid[] strings are still supported but not the prefered 75 * method of labeling files. Use #ident. 76 */ 77 #ifdef __STDC__ 78 #define DEBUG(var, type) fprintf(stderr, #var "= %" #type "\n", var) 79 #define SCCSID(arg) static char Sccsid[] = #arg 80 #else 81 #define DEBUG(var, type) fprintf(stderr, "var = %type\n", var) 82 #define SCCSID(arg) static char Sccsid[] = "arg" 83 #endif 84 85 /* 86 * Use of ERRABORT() will cause libS.a internal 87 * errors to cause aborts 88 */ 89 #define ERRABORT() _error() { abort(); } 90 91 /* 92 * Use of USXALLOC() is required to force all calls to alloc() 93 * (e.g., from libS.a) to call xalloc(). 94 */ 95 #define NONBLANK(p) while (*(p) == ' ' || *(p) == '\t') (p)++ 96 97 /* 98 * A global null string. 99 */ 100 extern char Null[1]; 101 102 /* 103 * A global error message string. 104 */ 105 extern char Error[128]; 106 107 #ifdef __cplusplus 108 } 109 #endif 110 111 #endif /* _MACROS_H */ 112