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authorstevel@tonic-gate <none@none>2005-06-14 00:00:00 -0700
committerstevel@tonic-gate <none@none>2005-06-14 00:00:00 -0700
commit7c478bd95313f5f23a4c958a745db2134aa03244 (patch)
treec871e58545497667cbb4b0a4f2daf204743e1fe7 /usr/src/head/macros.h
downloadillumos-joyent-7c478bd95313f5f23a4c958a745db2134aa03244.tar.gz
OpenSolaris Launch
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+/*
+ * 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 <sys/types.h>
+#include <sys/stat.h>
+
+#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 */