lib.h revision 104862 
1// -*- C++ -*-
2/* Copyright (C) 1989-2000, 2001, 2002 Free Software Foundation, Inc.
3     Written by James Clark (jjc@jclark.com)
4
5This file is part of groff.
6
7groff is free software; you can redistribute it and/or modify it under
8the terms of the GNU General Public License as published by the Free
9Software Foundation; either version 2, or (at your option) any later
10version.
11
12groff is distributed in the hope that it will be useful, but WITHOUT ANY
13WARRANTY; without even the implied warranty of MERCHANTABILITY or
14FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
15for more details.
16
17You should have received a copy of the GNU General Public License along
18with groff; see the file COPYING.  If not, write to the Free Software
19Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
20
21#ifdef HAVE_CONFIG_H
22#include <config.h>
23#endif
24
25extern "C" {
26#ifndef HAVE_STRERROR
27  char *strerror(int);
28#endif
29  const char *i_to_a(int);
30  const char *ui_to_a(unsigned int);
31  const char *if_to_a(int, int);
32}
33
34/* stdio.h on IRIX, OSF/1, emx, and UWIN include getopt.h */
35/* unistd.h on CYGWIN includes getopt.h */
36
37#if !(defined(__sgi) \
38      || (defined(__osf__) && defined(__alpha)) \
39      || defined(_UWIN) \
40      || defined(__EMX__) \
41      || defined(__CYGWIN__))
42#include <groff-getopt.h>
43#else
44#include <getopt.h>
45#endif
46
47char *strsave(const char *s);
48int is_prime(unsigned);
49
50#include <stdio.h>
51#include <string.h>
52#ifdef HAVE_STRINGS_H
53#include <strings.h>
54#endif
55
56#ifndef HAVE_SNPRINTF
57#include <stdarg.h>
58extern "C" {
59  int snprintf(char *, size_t, const char *, /*args*/ ...);
60  int vsnprintf(char *, size_t, const char *, va_list);
61}
62#endif
63
64#ifndef HAVE_MKSTEMP
65/* since mkstemp() is defined as a real C++ function if taken from
66   groff's mkstemp.cc we need a declaration */
67int mkstemp(char *tmpl);
68#endif /* HAVE_MKSTEMP */
69
70int mksdir(char *tmpl);
71
72FILE *xtmpfile(char **namep = 0,
73	       const char *postfix_long = 0, const char *postfix_short = 0,
74	       int do_unlink = 1);
75char *xtmptemplate(const char *postfix_long, const char *postfix_short);
76
77#ifdef NEED_DECLARATION_POPEN
78extern "C" { FILE *popen(const char *, const char *); }
79#endif /* NEED_DECLARATION_POPEN */
80
81#ifdef NEED_DECLARATION_PCLOSE
82extern "C" { int pclose (FILE *); }
83#endif /* NEED_DECLARATION_PCLOSE */
84
85size_t file_name_max(const char *fname);
86
87int interpret_lf_args(const char *p);
88
89extern char invalid_char_table[];
90
91inline int invalid_input_char(int c)
92{
93  return c >= 0 && invalid_char_table[c];
94}
95
96#ifdef HAVE_STRCASECMP
97#ifdef NEED_DECLARATION_STRCASECMP
98extern "C" {
99  // Ultrix4.3's string.h fails to declare this.
100  int strcasecmp(const char *, const char *);
101}
102#endif /* NEED_DECLARATION_STRCASECMP */
103#endif /* HAVE_STRCASECMP */
104
105#if !defined(_AIX) && !defined(sinix) && !defined(__sinix__)
106#ifdef HAVE_STRNCASECMP
107#ifdef NEED_DECLARATION_STRNCASECMP
108extern "C" {
109  // SunOS's string.h fails to declare this.
110  int strncasecmp(const char *, const char *, int);
111}
112#endif /* NEED_DECLARATION_STRNCASECMP */
113#endif /* HAVE_STRNCASECMP */
114#endif /* !_AIX && !sinix && !__sinix__ */
115
116#ifndef HAVE_STRCASECMP
117#define strcasecmp(a,b) strcmp((a),(b))
118#endif
119
120#ifndef HAVE_STRNCASECMP
121#define strncasecmp(a,b,c) strncmp((a),(b),(c))
122#endif
123
124#ifdef HAVE_CC_LIMITS_H
125#include <limits.h>
126#else /* not HAVE_CC_LIMITS_H */
127#define INT_MAX 2147483647
128#endif /* not HAVE_CC_LIMITS_H */
129
130/* It's not safe to rely on people getting INT_MIN right (ie signed). */
131
132#ifdef INT_MIN
133#undef INT_MIN
134#endif
135
136#ifdef CFRONT_ANSI_BUG
137
138/* This works around a bug in cfront 2.0 used with ANSI C compilers. */
139
140#define INT_MIN ((long)(-INT_MAX-1))
141
142#else /* not CFRONT_ANSI_BUG */
143
144#define INT_MIN (-INT_MAX-1)
145
146#endif /* not CFRONT_ANSI_BUG */
147
148/* Maximum number of digits in the decimal representation of an int
149(not including the -). */
150
151#define INT_DIGITS 10
152
153#ifdef PI
154#undef PI
155#endif
156
157const double PI = 3.14159265358979323846;
158
159/* ad_delete deletes an array of objects with destructors;
160a_delete deletes an array of objects without destructors */
161
162#ifdef ARRAY_DELETE_NEEDS_SIZE
163/* for 2.0 systems */
164#define ad_delete(size) delete [size]
165#define a_delete delete
166#else /* not ARRAY_DELETE_NEEDS_SIZE */
167/* for ARM systems */
168#define ad_delete(size) delete []
169#define a_delete delete []
170#endif /* not ARRAY_DELETE_NEEDS_SIZE */
171