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, 51 Franklin St - Fifth Floor, Boston, MA 02110-1301, 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 and Mac OS X include 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       || defined(__APPLE__))
  45 #include <groff-getopt.h>
  46 #else
  47 #include <getopt.h>
  48 #endif
  49
  50 #ifdef HAVE_SETLOCALE
  51 #include <locale.h>
  52 #else
  53 #define setlocale(category, locale) do {} while(0)
  54 #endif
  55
  56 char *strsave(const char *s);
  57 int is_prime(unsigned);
  58 double groff_hypot(double, double);
  59
  60 #include <stdio.h>
  61 #include <string.h>
  62 #ifdef HAVE_STRINGS_H
  63 #include <strings.h>
  64 #endif
  65
  66 #include <stdarg.h>
  67
  68 /* HP-UX 10.20 and LynxOS 4.0.0 don't declare snprintf() */
  69 #if !defined(HAVE_SNPRINTF) || defined(NEED_DECLARATION_SNPRINTF)
  70 extern "C" { int snprintf(char *, size_t, const char *, /*args*/ ...); }
  71 #endif
  72
  73 /* LynxOS 4.0.0 has snprintf() but no vsnprintf() */
  74 #if !defined(HAVE_VSNPRINTF) || defined(NEED_DECLARATION_VSNPRINTF)
  75 extern "C" { int vsnprintf(char *, size_t, const char *, va_list); }
  76 #endif
  77
  78 /* LynxOS 4.0.0 doesn't declare vfprintf() */
  79 #ifdef NEED_DECLARATION_VFPRINTF
  80 extern "C" { int vfprintf(FILE *, const char *, va_list); }
  81 #endif
  82
  83 #ifndef HAVE_MKSTEMP
  84 /* since mkstemp() is defined as a real C++ function if taken from
  85    groff's mkstemp.cpp we need a declaration */
  86 int mkstemp(char *tmpl);
  87 #endif /* HAVE_MKSTEMP */
  88
  89 int mksdir(char *tmpl);
  90
  91 FILE *xtmpfile(char **namep = 0,
  92                const char *postfix_long = 0, const char *postfix_short = 0,
  93                int do_unlink = 1);
  94 char *xtmptemplate(const char *postfix_long, const char *postfix_short);
  95
  96 #ifdef NEED_DECLARATION_POPEN
  97 extern "C" { FILE *popen(const char *, const char *); }
  98 #endif /* NEED_DECLARATION_POPEN */
  99
 100 #ifdef NEED_DECLARATION_PCLOSE
 101 extern "C" { int pclose (FILE *); }
 102 #endif /* NEED_DECLARATION_PCLOSE */
 103
 104 size_t file_name_max(const char *fname);
 105 size_t path_name_max();
 106
 107 int interpret_lf_args(const char *p);
 108
 109 extern char invalid_char_table[];
 110
 111 inline int invalid_input_char(int c)
 112 {
 113   return c >= 0 && invalid_char_table[c];
 114 }
 115
 116 #ifdef HAVE_STRCASECMP
 117 #ifdef NEED_DECLARATION_STRCASECMP
 118 // Ultrix4.3's string.h fails to declare this.
 119 extern "C" { int strcasecmp(const char *, const char *); }
 120 #endif /* NEED_DECLARATION_STRCASECMP */
 121 #else /* not HAVE_STRCASECMP */
 122 extern "C" { int strcasecmp(const char *, const char *); }
 123 #endif /* HAVE_STRCASECMP */
 124
 125 #if !defined(_AIX) && !defined(sinix) && !defined(__sinix__)
 126 #ifdef HAVE_STRNCASECMP
 127 #ifdef NEED_DECLARATION_STRNCASECMP
 128 // SunOS's string.h fails to declare this.
 129 extern "C" { int strncasecmp(const char *, const char *, int); }
 130 #endif /* NEED_DECLARATION_STRNCASECMP */
 131 #else /* not HAVE_STRNCASECMP */
 132 extern "C" { int strncasecmp(const char *, const char *, size_t); }
 133 #endif /* HAVE_STRNCASECMP */
 134 #endif /* !_AIX && !sinix && !__sinix__ */
 135
 136 #ifdef HAVE_CC_LIMITS_H
 137 #include <limits.h>
 138 #else /* not HAVE_CC_LIMITS_H */
 139 #define INT_MAX 2147483647
 140 #endif /* not HAVE_CC_LIMITS_H */
 141
 142 /* It's not safe to rely on people getting INT_MIN right (ie signed). */
 143
 144 #ifdef INT_MIN
 145 #undef INT_MIN
 146 #endif
 147
 148 #ifdef CFRONT_ANSI_BUG
 149
 150 /* This works around a bug in cfront 2.0 used with ANSI C compilers. */
 151
 152 #define INT_MIN ((long)(-INT_MAX-1))
 153
 154 #else /* not CFRONT_ANSI_BUG */
 155
 156 #define INT_MIN (-INT_MAX-1)
 157
 158 #endif /* not CFRONT_ANSI_BUG */
 159
 160 /* Maximum number of digits in the decimal representation of an int
 161 (not including the -). */
 162
 163 #define INT_DIGITS 10
 164
 165 #ifdef PI
 166 #undef PI
 167 #endif
 168
 169 const double PI = 3.14159265358979323846;
 170
 171 /* ad_delete deletes an array of objects with destructors;
 172 a_delete deletes an array of objects without destructors */
 173
 174 #ifdef ARRAY_DELETE_NEEDS_SIZE
 175 /* for 2.0 systems */
 176 #define ad_delete(size) delete [size]
 177 #define a_delete delete
 178 #else /* not ARRAY_DELETE_NEEDS_SIZE */
 179 /* for ARM systems */
 180 #define ad_delete(size) delete []
 181 #define a_delete delete []
 182 #endif /* not ARRAY_DELETE_NEEDS_SIZE */