1// -*- C++ -*-
2/* Copyright (C) 1989-2000, 2001, 2002, 2003, 2005
3   Free Software Foundation, Inc.
4     Written by James Clark (jjc@jclark.com)
5
6This file is part of groff.
7
8groff is free software; you can redistribute it and/or modify it under
9the terms of the GNU General Public License as published by the Free
10Software Foundation; either version 2, or (at your option) any later
11version.
12
13groff is distributed in the hope that it will be useful, but WITHOUT ANY
14WARRANTY; without even the implied warranty of MERCHANTABILITY or
15FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
16for more details.
17
18You should have received a copy of the GNU General Public License along
19with groff; see the file COPYING.  If not, write to the Free Software
20Foundation, 51 Franklin St - Fifth Floor, Boston, MA 02110-1301, USA. */
21
22#ifdef HAVE_CONFIG_H
23#include <config.h>
24#endif
25
26extern "C" {
27#ifndef HAVE_STRERROR
28  char *strerror(int);
29#endif
30  const char *i_to_a(int);
31  const char *ui_to_a(unsigned int);
32  const char *if_to_a(int, int);
33}
34
35#define __GETOPT_PREFIX groff_
36#include <getopt.h>
37
38#ifdef HAVE_SETLOCALE
39#include <locale.h>
40#else
41#define setlocale(category, locale) do {} while(0)
42#endif
43
44char *strsave(const char *s);
45int is_prime(unsigned);
46double groff_hypot(double, double);
47
48#include <stdio.h>
49#include <string.h>
50#ifdef HAVE_STRINGS_H
51#include <strings.h>
52#endif
53
54#include <stdarg.h>
55
56/* HP-UX 10.20 and LynxOS 4.0.0 don't declare snprintf() */
57#if !defined(HAVE_SNPRINTF) || defined(NEED_DECLARATION_SNPRINTF)
58extern "C" { int snprintf(char *, size_t, const char *, /*args*/ ...); }
59#endif
60
61/* LynxOS 4.0.0 has snprintf() but no vsnprintf() */
62#if !defined(HAVE_VSNPRINTF) || defined(NEED_DECLARATION_VSNPRINTF)
63extern "C" { int vsnprintf(char *, size_t, const char *, va_list); }
64#endif
65
66/* LynxOS 4.0.0 doesn't declare vfprintf() */
67#ifdef NEED_DECLARATION_VFPRINTF
68extern "C" { int vfprintf(FILE *, const char *, va_list); }
69#endif
70
71#ifndef HAVE_MKSTEMP
72/* since mkstemp() is defined as a real C++ function if taken from
73   groff's mkstemp.cpp we need a declaration */
74int mkstemp(char *tmpl);
75#endif /* HAVE_MKSTEMP */
76
77int mksdir(char *tmpl);
78
79FILE *xtmpfile(char **namep = 0,
80	       const char *postfix_long = 0, const char *postfix_short = 0,
81	       int do_unlink = 1);
82char *xtmptemplate(const char *postfix_long, const char *postfix_short);
83
84#ifdef NEED_DECLARATION_POPEN
85extern "C" { FILE *popen(const char *, const char *); }
86#endif /* NEED_DECLARATION_POPEN */
87
88#ifdef NEED_DECLARATION_PCLOSE
89extern "C" { int pclose (FILE *); }
90#endif /* NEED_DECLARATION_PCLOSE */
91
92size_t file_name_max(const char *fname);
93size_t path_name_max();
94
95int interpret_lf_args(const char *p);
96
97extern char invalid_char_table[];
98
99inline int invalid_input_char(int c)
100{
101  return c >= 0 && invalid_char_table[c];
102}
103
104#ifdef HAVE_STRCASECMP
105#ifdef NEED_DECLARATION_STRCASECMP
106// Ultrix4.3's string.h fails to declare this.
107extern "C" { int strcasecmp(const char *, const char *); }
108#endif /* NEED_DECLARATION_STRCASECMP */
109#else /* not HAVE_STRCASECMP */
110extern "C" { int strcasecmp(const char *, const char *); }
111#endif /* HAVE_STRCASECMP */
112
113#if !defined(_AIX) && !defined(sinix) && !defined(__sinix__)
114#ifdef HAVE_STRNCASECMP
115#ifdef NEED_DECLARATION_STRNCASECMP
116// SunOS's string.h fails to declare this.
117extern "C" { int strncasecmp(const char *, const char *, int); }
118#endif /* NEED_DECLARATION_STRNCASECMP */
119#else /* not HAVE_STRNCASECMP */
120extern "C" { int strncasecmp(const char *, const char *, size_t); }
121#endif /* HAVE_STRNCASECMP */
122#endif /* !_AIX && !sinix && !__sinix__ */
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