src/include/lib.h

   1 // -*- C++ -*-
   2 /* Copyright (C) 1989-2000, 2001, 2002, 2003 Free Software Foundation, Inc.
   3      Written by James Clark (jjc@jclark.com)
   4
   5 This file is part of groff.
   6
   7 groff is free software; you can redistribute it and/or modify it under
   8 the terms of the GNU General Public License as published by the Free
   9 Software Foundation; either version 2, or (at your option) any later
  10 version.
  11
  12 groff is distributed in the hope that it will be useful, but WITHOUT ANY
  13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  15 for more details.
  16
  17 You should have received a copy of the GNU General Public License along
  18 with groff; see the file COPYING.  If not, write to the Free Software
  19 Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
  20
  21 #ifdef HAVE_CONFIG_H
  22 #include <config.h>
  23 #endif
  24
  25 extern "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
  47 #ifdef HAVE_SETLOCALE
  48 #include <locale.h>
  49 #else
  50 #define setlocale(category, locale) do {} while(0)
  51 #endif
  52
  53 char *strsave(const char *s);
  54 int is_prime(unsigned);
  55
  56 #include <stdio.h>
  57 #include <string.h>
  58 #ifdef HAVE_STRINGS_H
  59 #include <strings.h>
  60 #endif
  61
  62 /* HP-UX 10.20 doesn't declare snprintf() */
  63 #if !defined(HAVE_SNPRINTF) || defined(NEED_DECLARATION_SNPRINTF)
  64 #include <stdarg.h>
  65 extern "C" {
  66   int snprintf(char *, size_t, const char *, /*args*/ ...);
  67   int vsnprintf(char *, size_t, const char *, va_list);
  68 }
  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 */
  74 int mkstemp(char *tmpl);
  75 #endif /* HAVE_MKSTEMP */
  76
  77 int mksdir(char *tmpl);
  78
  79 FILE *xtmpfile(char **namep = 0,
  80                const char *postfix_long = 0, const char *postfix_short = 0,
  81                int do_unlink = 1);
  82 char *xtmptemplate(const char *postfix_long, const char *postfix_short);
  83
  84 #ifdef NEED_DECLARATION_POPEN
  85 extern "C" { FILE *popen(const char *, const char *); }
  86 #endif /* NEED_DECLARATION_POPEN */
  87
  88 #ifdef NEED_DECLARATION_PCLOSE
  89 extern "C" { int pclose (FILE *); }
  90 #endif /* NEED_DECLARATION_PCLOSE */
  91
  92 size_t file_name_max(const char *fname);
  93
  94 int interpret_lf_args(const char *p);
  95
  96 extern char invalid_char_table[];
  97
  98 inline int invalid_input_char(int c)
  99 {
 100   return c >= 0 && invalid_char_table[c];
 101 }
 102
 103 #ifdef HAVE_STRCASECMP
 104 #ifdef NEED_DECLARATION_STRCASECMP
 105 extern "C" {
 106   // Ultrix4.3's string.h fails to declare this.
 107   int strcasecmp(const char *, const char *);
 108 }
 109 #endif /* NEED_DECLARATION_STRCASECMP */
 110 #else /* not HAVE_STRCASECMP */
 111 extern "C" {
 112   int strcasecmp(const char *, const char *);
 113 }
 114 #endif /* HAVE_STRCASECMP */
 115
 116 #if !defined(_AIX) && !defined(sinix) && !defined(__sinix__)
 117 #ifdef HAVE_STRNCASECMP
 118 #ifdef NEED_DECLARATION_STRNCASECMP
 119 extern "C" {
 120   // SunOS's string.h fails to declare this.
 121   int strncasecmp(const char *, const char *, int);
 122 }
 123 #endif /* NEED_DECLARATION_STRNCASECMP */
 124 #else /* not HAVE_STRNCASECMP */
 125 extern "C" {
 126   int strncasecmp(const char *, const char *, size_t);
 127 }
 128 #endif /* HAVE_STRNCASECMP */
 129 #endif /* !_AIX && !sinix && !__sinix__ */
 130
 131 #ifdef HAVE_CC_LIMITS_H
 132 #include <limits.h>
 133 #else /* not HAVE_CC_LIMITS_H */
 134 #define INT_MAX 2147483647
 135 #endif /* not HAVE_CC_LIMITS_H */
 136
 137 /* It's not safe to rely on people getting INT_MIN right (ie signed). */
 138
 139 #ifdef INT_MIN
 140 #undef INT_MIN
 141 #endif
 142
 143 #ifdef CFRONT_ANSI_BUG
 144
 145 /* This works around a bug in cfront 2.0 used with ANSI C compilers. */
 146
 147 #define INT_MIN ((long)(-INT_MAX-1))
 148
 149 #else /* not CFRONT_ANSI_BUG */
 150
 151 #define INT_MIN (-INT_MAX-1)
 152
 153 #endif /* not CFRONT_ANSI_BUG */
 154
 155 /* Maximum number of digits in the decimal representation of an int
 156 (not including the -). */
 157
 158 #define INT_DIGITS 10
 159
 160 #ifdef PI
 161 #undef PI
 162 #endif
 163
 164 const double PI = 3.14159265358979323846;
 165
 166 /* ad_delete deletes an array of objects with destructors;
 167 a_delete deletes an array of objects without destructors */
 168
 169 #ifdef ARRAY_DELETE_NEEDS_SIZE
 170 /* for 2.0 systems */
 171 #define ad_delete(size) delete [size]
 172 #define a_delete delete
 173 #else /* not ARRAY_DELETE_NEEDS_SIZE */
 174 /* for ARM systems */
 175 #define ad_delete(size) delete []
 176 #define a_delete delete []
 177 #endif /* not ARRAY_DELETE_NEEDS_SIZE */