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, UWIN, and MinGW 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       || defined(__MINGW32__))
  43 #include <groff-getopt.h>
  44 #else
  45 #include <getopt.h>
  46 #endif
  47
  48 #ifdef HAVE_SETLOCALE
  49 #include <locale.h>
  50 #else
  51 #define setlocale(category, locale) do {} while(0)
  52 #endif
  53
  54 char *strsave(const char *s);
  55 int is_prime(unsigned);
  56
  57 #include <stdio.h>
  58 #include <string.h>
  59 #ifdef HAVE_STRINGS_H
  60 #include <strings.h>
  61 #endif
  62
  63 #include <stdarg.h>
  64
  65 /* HP-UX 10.20 and LynxOS 4.0.0 don't declare snprintf() */
  66 #if !defined(HAVE_SNPRINTF) || defined(NEED_DECLARATION_SNPRINTF)
  67 extern "C" { int snprintf(char *, size_t, const char *, /*args*/ ...); }
  68 #endif
  69
  70 /* LynxOS 4.0.0 has snprintf() but no vsnprintf() */
  71 #if !defined(HAVE_VSNPRINTF) || defined(NEED_DECLARATION_VSNPRINTF)
  72 extern "C" { int vsnprintf(char *, size_t, const char *, va_list); }
  73 #endif
  74
  75 /* LynxOS 4.0.0 doesn't declare vfprintf() */
  76 #ifdef NEED_DECLARATION_VFPRINTF
  77 extern "C" { int vfprintf(FILE *, const char *, va_list); }
  78 #endif
  79
  80 #ifndef HAVE_MKSTEMP
  81 /* since mkstemp() is defined as a real C++ function if taken from
  82    groff's mkstemp.cpp we need a declaration */
  83 int mkstemp(char *tmpl);
  84 #endif /* HAVE_MKSTEMP */
  85
  86 int mksdir(char *tmpl);
  87
  88 FILE *xtmpfile(char **namep = 0,
  89                const char *postfix_long = 0, const char *postfix_short = 0,
  90                int do_unlink = 1);
  91 char *xtmptemplate(const char *postfix_long, const char *postfix_short);
  92
  93 #ifdef NEED_DECLARATION_POPEN
  94 extern "C" { FILE *popen(const char *, const char *); }
  95 #endif /* NEED_DECLARATION_POPEN */
  96
  97 #ifdef NEED_DECLARATION_PCLOSE
  98 extern "C" { int pclose (FILE *); }
  99 #endif /* NEED_DECLARATION_PCLOSE */
 100
 101 size_t file_name_max(const char *fname);
 102
 103 int interpret_lf_args(const char *p);
 104
 105 extern char invalid_char_table[];
 106
 107 inline int invalid_input_char(int c)
 108 {
 109   return c >= 0 && invalid_char_table[c];
 110 }
 111
 112 #ifdef HAVE_STRCASECMP
 113 #ifdef NEED_DECLARATION_STRCASECMP
 114 // Ultrix4.3's string.h fails to declare this.
 115 extern "C" { int strcasecmp(const char *, const char *); }
 116 #endif /* NEED_DECLARATION_STRCASECMP */
 117 #else /* not HAVE_STRCASECMP */
 118 extern "C" { int strcasecmp(const char *, const char *); }
 119 #endif /* HAVE_STRCASECMP */
 120
 121 #if !defined(_AIX) && !defined(sinix) && !defined(__sinix__)
 122 #ifdef HAVE_STRNCASECMP
 123 #ifdef NEED_DECLARATION_STRNCASECMP
 124 // SunOS's string.h fails to declare this.
 125 extern "C" { int strncasecmp(const char *, const char *, int); }
 126 #endif /* NEED_DECLARATION_STRNCASECMP */
 127 #else /* not HAVE_STRNCASECMP */
 128 extern "C" { int strncasecmp(const char *, const char *, size_t); }
 129 #endif /* HAVE_STRNCASECMP */
 130 #endif /* !_AIX && !sinix && !__sinix__ */
 131
 132 #ifdef HAVE_CC_LIMITS_H
 133 #include <limits.h>
 134 #else /* not HAVE_CC_LIMITS_H */
 135 #define INT_MAX 2147483647
 136 #endif /* not HAVE_CC_LIMITS_H */
 137
 138 /* It's not safe to rely on people getting INT_MIN right (ie signed). */
 139
 140 #ifdef INT_MIN
 141 #undef INT_MIN
 142 #endif
 143
 144 #ifdef CFRONT_ANSI_BUG
 145
 146 /* This works around a bug in cfront 2.0 used with ANSI C compilers. */
 147
 148 #define INT_MIN ((long)(-INT_MAX-1))
 149
 150 #else /* not CFRONT_ANSI_BUG */
 151
 152 #define INT_MIN (-INT_MAX-1)
 153
 154 #endif /* not CFRONT_ANSI_BUG */
 155
 156 /* Maximum number of digits in the decimal representation of an int
 157 (not including the -). */
 158
 159 #define INT_DIGITS 10
 160
 161 #ifdef PI
 162 #undef PI
 163 #endif
 164
 165 const double PI = 3.14159265358979323846;
 166
 167 /* ad_delete deletes an array of objects with destructors;
 168 a_delete deletes an array of objects without destructors */
 169
 170 #ifdef ARRAY_DELETE_NEEDS_SIZE
 171 /* for 2.0 systems */
 172 #define ad_delete(size) delete [size]
 173 #define a_delete delete
 174 #else /* not ARRAY_DELETE_NEEDS_SIZE */
 175 /* for ARM systems */
 176 #define ad_delete(size) delete []
 177 #define a_delete delete []
 178 #endif /* not ARRAY_DELETE_NEEDS_SIZE */