source: vis_dev/glu-2.3/src/util/util.h

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

library glu 2.3
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 1.19 2009/04/11 02:04:46 fabio Exp $]
34
35******************************************************************************/
36
37#ifndef _UTIL
38#define _UTIL
39
40#include <stdio.h>
41#include <ctype.h>
42#include <math.h>
43
44#if HAVE_UNISTD_H
45#  include <unistd.h>
46#endif
47
48#if HAVE_SYS_TYPES_H
49#  include <sys/types.h>
50#endif
51
52#if HAVE_VARARGS_H
53#  include <varargs.h>
54#endif
55
56#if STDC_HEADERS
57#  include <stdlib.h>
58#  include <string.h>
59#else
60#  ifdef HAVE_STRCHR
61char * strchr(const char *, int);
62int strcmp(const char *, const char *);
63#  else
64#    define strchr index
65#  endif
66#  ifdef HAVE_GETENV
67char * getenv(const char *);
68#  endif
69#endif /* STDC_HEADERS */
70
71#if HAVE_ERRNO_H
72#  include <errno.h>
73#endif
74
75/*
76 * Ensure we have reasonable assert() and fail() functions
77 */
78
79#if HAVE_ASSERT_H
80#  include <assert.h>
81#else
82#  ifdef NDEBUG
83#    define assert(ex) ;
84#  else
85#    define assert(ex) {\
86    if (! (ex)) {\
87        (void) fprintf(stderr,\
88            "Assertion failed: file %s, line %d\n\"%s\"\n",\
89            __FILE__, __LINE__, "ex");\
90        (void) fflush(stdout);\
91        abort();\
92    }\
93}
94#  endif
95#endif
96
97#define fail(why) {\
98    (void) fprintf(stderr, "Fatal error: file %s, line %d\n%s\n",\
99        __FILE__, __LINE__, why);\
100    (void) fflush(stdout);\
101    abort();\
102}
103
104/*
105 * Support for ANSI function prototypes in non-ANSI compilers
106 *
107 * Usage:
108 *   extern int foo ARGS((char *, double))
109 */
110
111#ifndef ARGS
112#  ifdef __STDC__
113#     define ARGS(args) args
114#  else
115#     define ARGS(args) ()
116# endif
117#endif
118
119#ifndef NULLARGS
120#  ifdef __STDC__
121#    define NULLARGS    (void)
122#  else
123#    define NULLARGS    ()
124#  endif
125#endif
126
127/*
128 * A little support for C++ compilers
129 */
130
131#ifdef __cplusplus
132#  define EXTERN        extern "C"
133#else
134#  define EXTERN        extern
135#endif
136
137/*
138 * Support to define unused varibles
139 */
140#if defined (__GNUC__)
141#if (__GNUC__ >2 || __GNUC_MINOR__ >=7) && !defined(UNUSED)
142#define UNUSED __attribute__ ((unused))
143#else
144#define UNUSED
145#endif
146#else
147#define UNUSED
148#endif
149
150/*
151 * A neater way to define zero pointers
152 *
153 * Usage:
154 *  int * fred;
155 *  fred = NIL(int);
156 */
157
158#define NIL(type)               ((type *) 0)
159
160/* #define USE_MM */
161
162#ifdef USE_MM
163/*
164 *  assumes the memory manager is libmm.a (a deprecated (?) Octtools library)
165 *      - allows malloc(0) or realloc(obj, 0)
166 *      - catches out of memory (and calls MMout_of_memory())
167 *      - catch free(0) and realloc(0, size) in the macros
168 */
169#  define ALLOC(type, num)      \
170    ((type *) malloc(sizeof(type) * (num)))
171#  define REALLOC(type, obj, num)       \
172    (obj) ? ((type *) realloc((void *) obj, sizeof(type) * (num))) : \
173            ((type *) malloc(sizeof(type) * (num)))
174#  define FREE(obj)             \
175    ((obj) ? (free((void *) (obj)), (obj) = 0) : 0)
176#else
177/*
178 *  enforce strict semantics on the memory allocator
179 */
180#  define ALLOC(type, num)      \
181    ((type *) MMalloc(sizeof(type) * (unsigned long) (num)))
182#  define REALLOC(type, obj, num)       \
183    ((type *) MMrealloc((void *) (obj), sizeof(type) * (unsigned long) (num)))
184#  define FREE(obj)             \
185    ((obj) ? (free((void *) (obj)), (obj) = 0) : 0)
186#endif
187
188#ifndef TRUE
189#  define TRUE 1
190#endif
191
192#ifndef FALSE
193#  define FALSE 0
194#endif
195
196#ifndef ABS
197#  define ABS(a)                        ((a) < 0 ? -(a) : (a))
198#endif
199
200#ifndef MAX
201#  define MAX(a,b)              ((a) > (b) ? (a) : (b))
202#endif
203
204#ifndef MIN
205#  define MIN(a,b)              ((a) < (b) ? (a) : (b))
206#endif
207
208#define ptime()         util_cpu_time()
209#define print_time(t)   util_print_time(t)
210
211#ifndef HUGE_VAL
212#  ifndef HUGE
213#    define HUGE  8.9884656743115790e+307
214#  endif
215#  define HUGE_VAL HUGE
216#endif
217
218#ifndef MAXINT
219#  define MAXINT (1 << 30)
220#endif
221
222EXTERN void util_print_cpu_stats ARGS((FILE *));
223EXTERN long util_cpu_time ARGS((void));
224EXTERN long util_cpu_ctime ARGS((void));
225EXTERN void util_getopt_reset ARGS((void));
226EXTERN int util_getopt ARGS((int, char * const *, char const *));
227EXTERN int util_check_file ARGS((char const *, char const *));
228EXTERN char *util_path_search ARGS((char const *));
229EXTERN char *util_file_search ARGS((char const *, char *, char const *));
230EXTERN char *util_print_time ARGS((long));
231EXTERN int util_save_image ARGS((char const *, char const *));
232EXTERN char *util_strsav ARGS((char const *));
233EXTERN char *util_inttostr ARGS((int));
234EXTERN char *util_strcat3 ARGS((char const *, char const *, char const *));
235EXTERN char *util_strcat4 ARGS((char const *, char const *, char const *, char const *));
236EXTERN int util_do_nothing ARGS((void));
237EXTERN char *util_tilde_expand ARGS((char const *));
238EXTERN char *util_tempnam ARGS((char const *, char const *));
239EXTERN FILE *util_tmpfile ARGS((void));
240EXTERN void util_srandom ARGS((long));
241EXTERN long util_random ARGS((void));
242EXTERN unsigned long getSoftDataLimit ARGS((void));
243EXTERN void MMout_of_memory ARGS((unsigned long));
244EXTERN void *MMalloc ARGS((unsigned long));
245EXTERN void *MMrealloc ARGS((void *, unsigned long));
246EXTERN void MMfree ARGS((void *));
247
248/*
249 * Global variables for util_getopt()
250 */
251
252extern int util_optind;
253extern char *util_optarg;
254
255/**AutomaticStart*************************************************************/
256
257/*---------------------------------------------------------------------------*/
258/* Function prototypes                                                       */
259/*---------------------------------------------------------------------------*/
260
261/**AutomaticEnd***************************************************************/
262
263#endif /* _UTIL */
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