source: vis_dev/cusp-1.1/src/util/util.h @ 57

Last change on this file since 57 was 12, checked in by cecile, 13 years ago

cusp added
File size: 6.6 KB
Line 
1/**CHeaderFile*****************************************************************
2
3  FileName    [ util.h ]
4
5  PackageName [ util ]
6
7  Synopsis    [ Very low-level utilities ]
8
9  Description [ Includes file access, pipes, forks, time, and temporary file
10                access. ]
11
12  Author      [ Stephen Edwards <sedwards@eecs.berkeley.edu> and many others]
13
14  Copyright   [Copyright (c) 1994-1996 The Regents of the Univ. of California.
15  All rights reserved.
16
17  Permission is hereby granted, without written agreement and without license
18  or royalty fees, to use, copy, modify, and distribute this software and its
19  documentation for any purpose, provided that the above copyright notice and
20  the following two paragraphs appear in all copies of this software.
21
22  IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
23  DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
24  OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF
25  CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26
27  THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
28  INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
29  FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS ON AN
30  "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO PROVIDE
31  MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.]
32
33  Revision    [$Id: util.h,v 1.3 2009-04-13 11:08:17 hhkim Exp $]
34
35******************************************************************************/
36
37#ifndef _UTIL
38#define _UTIL
39
40#ifndef CLOCK_RESOLUTION
41#define CLOCK_RESOLUTION 60
42#endif
43
44#include <stdio.h>
45#include <ctype.h>
46#include <math.h>
47
48#if HAVE_UNISTD_H
49#  include <unistd.h>
50#endif
51
52#if HAVE_SYS_TYPES_H
53#  include <sys/types.h>
54#endif
55
56#ifdef HAVE_VARARGS_H
57#  include <varargs.h>
58#endif
59
60#if STDC_HEADERS
61#  include <stdlib.h>
62#  include <string.h>
63#else
64#  ifdef HAVE_STRCHR
65char * strchr(const char *, int);
66int strcmp(const char *, const char *);
67#  else
68#    define strchr index
69#  endif
70#  ifdef HAVE_GETENV
71char * getenv(const char *);
72#  endif
73#endif /* STDC_HEADERS */
74
75#if HAVE_ERRNO_H
76#  include <errno.h>
77#endif
78
79/*
80 * Ensure we have reasonable assert() and fail() functions
81 */
82
83#ifdef HAVE_ASSERT_H
84#  include <assert.h>
85#else
86#  ifdef NDEBUG
87#    define assert(ex) ;
88#  else
89#    define assert(ex) {\
90    if (! (ex)) {\
91        (void) fprintf(stderr,\
92            "Assertion failed: file %s, line %d\n\"%s\"\n",\
93            __FILE__, __LINE__, "ex");\
94        (void) fflush(stdout);\
95        abort();\
96    }\
97}
98#  endif
99#endif
100
101#define fail(why) {\
102    (void) fprintf(stderr, "Fatal error: file %s, line %d\n%s\n",\
103        __FILE__, __LINE__, why);\
104    (void) fflush(stdout);\
105    abort();\
106}
107
108/*
109 * Support for ANSI function prototypes in non-ANSI compilers
110 *
111 * Usage:
112 *   extern int foo ARGS((char *, double))
113 */
114
115#ifndef ARGS
116#  ifdef __STDC__
117#     define ARGS(args) args
118#  else
119#     define ARGS(args) ()
120# endif
121#endif
122
123#ifndef NULLARGS
124#  ifdef __STDC__
125#    define NULLARGS    (void)
126#  else
127#    define NULLARGS    ()
128#  endif
129#endif
130
131/*
132 * A little support for C++ compilers
133 */
134
135#ifdef __cplusplus
136#  define EXTERN        extern "C"
137#else
138#  define EXTERN        extern
139#endif
140
141/*
142 * Support to define unused varibles
143 */
144#if defined (__GNUC__)
145#if (__GNUC__ >2 || __GNUC_MINOR__ >=7) && !defined(UNUSED)
146#define UNUSED __attribute__ ((unused))
147#else
148#define UNUSED
149#endif
150#else
151#define UNUSED
152#endif
153
154/*
155 * A neater way to define zero pointers
156 *
157 * Usage:
158 *  int * fred;
159 *  fred = NIL(int);
160 */
161
162#define NIL(type)               ((type *) 0)
163
164/* #define USE_MM */
165
166#ifdef USE_MM
167/*
168 *  assumes the memory manager is libmm.a (a deprecated (?) Octtools library)
169 *      - allows malloc(0) or realloc(obj, 0)
170 *      - catches out of memory (and calls MMout_of_memory())
171 *      - catch free(0) and realloc(0, size) in the macros
172 */
173#  define ALLOC(type, num)      \
174    ((type *) malloc(sizeof(type) * (num)))
175#  define REALLOC(type, obj, num)       \
176    (obj) ? ((type *) realloc((void *) obj, sizeof(type) * (num))) : \
177            ((type *) malloc(sizeof(type) * (num)))
178#  define FREE(obj)             \
179    ((obj) ? (free((void *) (obj)), (obj) = 0) : 0)
180#else
181/*
182 *  enforce strict semantics on the memory allocator
183 */
184#  define ALLOC(type, num)      \
185    ((type *) MMalloc(sizeof(type) * (unsigned long) (num)))
186#  define REALLOC(type, obj, num)       \
187    ((type *) MMrealloc((void *) (obj), sizeof(type) * (unsigned long) (num)))
188#  define FREE(obj)             \
189    ((obj) ? (free((void *) (obj)), (obj) = 0) : 0)
190#endif
191
192#ifndef TRUE
193#  define TRUE 1
194#endif
195
196#ifndef FALSE
197#  define FALSE 0
198#endif
199
200#ifndef ABS
201#  define ABS(a)                        ((a) < 0 ? -(a) : (a))
202#endif
203
204#ifndef MAX
205#  define MAX(a,b)              ((a) > (b) ? (a) : (b))
206#endif
207
208#ifndef MIN
209#  define MIN(a,b)              ((a) < (b) ? (a) : (b))
210#endif
211
212#define ptime()         util_cpu_time()
213#define print_time(t)   util_print_time(t)
214
215#ifndef HUGE_VAL
216#  ifndef HUGE
217#    define HUGE  8.9884656743115790e+307
218#  endif
219#  define HUGE_VAL HUGE
220#endif
221
222#ifndef MAXINT
223#  define MAXINT (1 << 30)
224#endif
225
226EXTERN void util_print_cpu_stats ARGS((FILE *));
227EXTERN long util_cpu_time ARGS((void));
228EXTERN long util_cpu_ctime ARGS((void));
229EXTERN void util_getopt_reset ARGS((void));
230EXTERN int util_getopt ARGS((int, char **, char *));
231EXTERN int util_check_file ARGS((char *, char *));
232EXTERN char *util_path_search ARGS((char *));
233EXTERN char *util_file_search ARGS((char *, char *, char *));
234EXTERN char *util_print_time ARGS((long));
235EXTERN int util_save_image ARGS((char *, char *));
236EXTERN char *util_strsav ARGS((char *));
237EXTERN char *util_inttostr ARGS((int));
238EXTERN char *util_strcat3 ARGS((char *, char *, char *));
239EXTERN char *util_strcat4 ARGS((char *, char *, char *, char *));
240EXTERN int util_do_nothing ARGS((void));
241EXTERN char *util_tilde_expand ARGS((char *));
242EXTERN char *util_tempnam ARGS((char *, char *));
243EXTERN FILE *util_tmpfile ARGS((void));
244EXTERN void util_srandom ARGS((long));
245EXTERN long util_random ARGS((void));
246EXTERN long getSoftDataLimit ARGS((void));
247EXTERN void MMout_of_memory ARGS((unsigned long));
248EXTERN void *MMalloc ARGS((unsigned long));
249EXTERN void *MMrealloc ARGS((void *, unsigned long));
250EXTERN void MMfree ARGS((void *));
251
252/*
253 * Global variables for util_getopt()
254 */
255
256extern int util_optind;
257extern char *util_optarg;
258
259/**AutomaticStart*************************************************************/
260
261/*---------------------------------------------------------------------------*/
262/* Function prototypes                                                       */
263/*---------------------------------------------------------------------------*/
264
265/**AutomaticEnd***************************************************************/
266
267#endif /* _UTIL */
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