add UNLEASHED_OBJ to unleashed.mk
[unleashed.git] / include / macros.h
blobed4f9226d9d791ca6d24ca903205b3824e819892
1 /*
2 * CDDL HEADER START
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.
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.
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]
20 * CDDL HEADER END
23 * Copyright 2014 Garrett D'Amore <garrett@damore.org>
25 /* Copyright (c) 1988 AT&T */
26 /* All Rights Reserved */
29 #ifndef _MACROS_H
30 #define _MACROS_H
32 #include <sys/types.h>
33 #include <sys/stat.h>
35 #ifdef __cplusplus
36 extern "C" {
37 #endif
40 * numeric() is useful in while's, if's, etc., but don't use *p++
41 * max() and min() depend on the types of the operands
42 * abs() is absolute value
44 #define numeric(c) ((c) >= '0' && (c) <= '9')
45 #define max(a, b) ((a) < (b) ? (b) : (a))
46 #define min(a, b) ((a) > (b) ? (b) : (a))
47 #define abs(x) ((x) >= 0 ? (x) : -(x))
49 #define compare(str1, str2) strcmp((str1), (str2))
50 #define equal(str1, str2) (strcmp((str1), (str2)) == 0)
51 #define length(str) strlen(str)
52 #define size(str) (strlen(str) + 1)
55 * The global variable Statbuf is available for use as a stat(II)
56 * structure. Note that "stat.h" is included here and should
57 * not be included elsewhere.
58 * Exists(file) returns 0 if the file does not exist;
59 * the flags word if it does (the flags word is always non-zero).
62 extern struct stat Statbuf;
63 #define exists(file) (stat(file, &Statbuf) < 0 ? 0 : Statbuf.st_mode)
66 * SAVE() and RSTR() use local data in nested blocks.
67 * Make sure that they nest cleanly.
69 #define SAVE(name, place) { int place = name;
70 #define RSTR(name, place) name = place; }
73 * Use: DEBUG(sum,d) which becomes fprintf(stderr,"sum = %d\n",sum)
75 #define DEBUG(var, type) fprintf(stderr, #var "= %" #type "\n", var)
78 * Use of ERRABORT() will cause libS.a internal
79 * errors to cause aborts
81 #define ERRABORT() _error() { abort(); }
84 * Use of USXALLOC() is required to force all calls to alloc()
85 * (e.g., from libS.a) to call xalloc().
87 #define NONBLANK(p) while (*(p) == ' ' || *(p) == '\t') (p)++
90 * A global null string.
92 extern char Null[1];
95 * A global error message string.
97 extern char Error[128];
99 #ifdef __cplusplus
101 #endif
103 #endif /* _MACROS_H */