src/include/lib.h

   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
   6 This file is part of groff.
   7
   8 groff is free software; you can redistribute it and/or modify it under
   9 the terms of the GNU General Public License as published by the Free
  10 Software Foundation; either version 2, or (at your option) any later
  11 version.
  12
  13 groff is distributed in the hope that it will be useful, but WITHOUT ANY
  14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  15 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  16 for more details.
  17
  18 You should have received a copy of the GNU General Public License along
  19 with groff; see the file COPYING.  If not, write to the Free Software
  20 Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 extern "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 /* stdio.h on IRIX, OSF/1, emx, UWIN, and MinGW include getopt.h */
  36 /* unistd.h on CYGWIN includes getopt.h */
  37
  38 #if !(defined(__sgi) \
  39       || (defined(__osf__) && defined(__alpha)) \
  40       || defined(_UWIN) \
  41       || defined(__EMX__) \
  42       || defined(__CYGWIN__) \
  43       || defined(__MINGW32__))
  44 #include <groff-getopt.h>
  45 #else
  46 #include <getopt.h>
  47 #endif
  48
  49 #ifdef HAVE_SETLOCALE
  50 #include <locale.h>
  51 #else
  52 #define setlocale(category, locale) do {} while(0)
  53 #endif
  54
  55 char *strsave(const char *s);
  56 int is_prime(unsigned);
  57 double groff_hypot(double, double);
  58
  59 #include <stdio.h>
  60 #include <string.h>
  61 #ifdef HAVE_STRINGS_H
  62 #include <strings.h>
  63 #endif
  64
  65 #include <stdarg.h>
  66
  67 /* HP-UX 10.20 and LynxOS 4.0.0 don't declare snprintf() */
  68 #if !defined(HAVE_SNPRINTF) || defined(NEED_DECLARATION_SNPRINTF)
  69 extern "C" { int snprintf(char *, size_t, const char *, /*args*/ ...); }
  70 #endif
  71
  72 /* LynxOS 4.0.0 has snprintf() but no vsnprintf() */
  73 #if !defined(HAVE_VSNPRINTF) || defined(NEED_DECLARATION_VSNPRINTF)
  74 extern "C" { int vsnprintf(char *, size_t, const char *, va_list); }
  75 #endif
  76
  77 /* LynxOS 4.0.0 doesn't declare vfprintf() */
  78 #ifdef NEED_DECLARATION_VFPRINTF
  79 extern "C" { int vfprintf(FILE *, const char *, va_list); }
  80 #endif
  81
  82 #ifndef HAVE_MKSTEMP
  83 /* since mkstemp() is defined as a real C++ function if taken from
  84    groff's mkstemp.cpp we need a declaration */
  85 int mkstemp(char *tmpl);
  86 #endif /* HAVE_MKSTEMP */
  87
  88 int mksdir(char *tmpl);
  89
  90 FILE *xtmpfile(char **namep = 0,
  91                const char *postfix_long = 0, const char *postfix_short = 0,
  92                int do_unlink = 1);
  93 char *xtmptemplate(const char *postfix_long, const char *postfix_short);
  94
  95 #ifdef NEED_DECLARATION_POPEN
  96 extern "C" { FILE *popen(const char *, const char *); }
  97 #endif /* NEED_DECLARATION_POPEN */
  98
  99 #ifdef NEED_DECLARATION_PCLOSE
 100 extern "C" { int pclose (FILE *); }
 101 #endif /* NEED_DECLARATION_PCLOSE */
 102
 103 size_t file_name_max(const char *fname);
 104
 105 int interpret_lf_args(const char *p);
 106
 107 extern char invalid_char_table[];
 108
 109 inline int invalid_input_char(int c)
 110 {
 111   return c >= 0 && invalid_char_table[c];
 112 }
 113
 114 #ifdef HAVE_STRCASECMP
 115 #ifdef NEED_DECLARATION_STRCASECMP
 116 // Ultrix4.3's string.h fails to declare this.
 117 extern "C" { int strcasecmp(const char *, const char *); }
 118 #endif /* NEED_DECLARATION_STRCASECMP */
 119 #else /* not HAVE_STRCASECMP */
 120 extern "C" { int strcasecmp(const char *, const char *); }
 121 #endif /* HAVE_STRCASECMP */
 122
 123 #if !defined(_AIX) && !defined(sinix) && !defined(__sinix__)
 124 #ifdef HAVE_STRNCASECMP
 125 #ifdef NEED_DECLARATION_STRNCASECMP
 126 // SunOS's string.h fails to declare this.
 127 extern "C" { int strncasecmp(const char *, const char *, int); }
 128 #endif /* NEED_DECLARATION_STRNCASECMP */
 129 #else /* not HAVE_STRNCASECMP */
 130 extern "C" { int strncasecmp(const char *, const char *, size_t); }
 131 #endif /* HAVE_STRNCASECMP */
 132 #endif /* !_AIX && !sinix && !__sinix__ */
 133
 134 #ifdef HAVE_CC_LIMITS_H
 135 #include <limits.h>
 136 #else /* not HAVE_CC_LIMITS_H */
 137 #define INT_MAX 2147483647
 138 #endif /* not HAVE_CC_LIMITS_H */
 139
 140 /* It's not safe to rely on people getting INT_MIN right (ie signed). */
 141
 142 #ifdef INT_MIN
 143 #undef INT_MIN
 144 #endif
 145
 146 #ifdef CFRONT_ANSI_BUG
 147
 148 /* This works around a bug in cfront 2.0 used with ANSI C compilers. */
 149
 150 #define INT_MIN ((long)(-INT_MAX-1))
 151
 152 #else /* not CFRONT_ANSI_BUG */
 153
 154 #define INT_MIN (-INT_MAX-1)
 155
 156 #endif /* not CFRONT_ANSI_BUG */
 157
 158 /* Maximum number of digits in the decimal representation of an int
 159 (not including the -). */
 160
 161 #define INT_DIGITS 10
 162
 163 #ifdef PI
 164 #undef PI
 165 #endif
 166
 167 const double PI = 3.14159265358979323846;
 168
 169 /* ad_delete deletes an array of objects with destructors;
 170 a_delete deletes an array of objects without destructors */
 171
 172 #ifdef ARRAY_DELETE_NEEDS_SIZE
 173 /* for 2.0 systems */
 174 #define ad_delete(size) delete [size]
 175 #define a_delete delete
 176 #else /* not ARRAY_DELETE_NEEDS_SIZE */
 177 /* for ARM systems */
 178 #define ad_delete(size) delete []
 179 #define a_delete delete []
 180 #endif /* not ARRAY_DELETE_NEEDS_SIZE */