src/include/lib.h

   1 // -*- C++ -*-
   2 /* Copyright (C) 1989-2000, 2001, 2002 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 char *strsave(const char *s);
  48 int is_prime(unsigned);
  49
  50 #include <stdio.h>
  51 #include <string.h>
  52 #ifdef HAVE_STRINGS_H
  53 #include <strings.h>
  54 #endif
  55
  56 #ifndef HAVE_SNPRINTF
  57 #include <stdarg.h>
  58 extern "C" {
  59   int snprintf(char *, size_t, const char *, /*args*/ ...);
  60   int vsnprintf(char *, size_t, const char *, va_list);
  61 }
  62 #endif
  63
  64 #ifndef HAVE_MKSTEMP
  65 /* since mkstemp() is defined as a real C++ function if taken from
  66    groff's mkstemp.cc we need a declaration */
  67 int mkstemp(char *tmpl);
  68 #endif /* HAVE_MKSTEMP */
  69
  70 int mksdir(char *tmpl);
  71
  72 FILE *xtmpfile(char **namep = 0,
  73                const char *postfix_long = 0, const char *postfix_short = 0,
  74                int do_unlink = 1);
  75 char *xtmptemplate(const char *postfix_long, const char *postfix_short);
  76
  77 #ifdef NEED_DECLARATION_POPEN
  78 extern "C" { FILE *popen(const char *, const char *); }
  79 #endif /* NEED_DECLARATION_POPEN */
  80
  81 #ifdef NEED_DECLARATION_PCLOSE
  82 extern "C" { int pclose (FILE *); }
  83 #endif /* NEED_DECLARATION_PCLOSE */
  84
  85 size_t file_name_max(const char *fname);
  86
  87 int interpret_lf_args(const char *p);
  88
  89 extern char invalid_char_table[];
  90
  91 inline int invalid_input_char(int c)
  92 {
  93   return c >= 0 && invalid_char_table[c];
  94 }
  95
  96 #ifdef HAVE_STRCASECMP
  97 #ifdef NEED_DECLARATION_STRCASECMP
  98 extern "C" {
  99   // Ultrix4.3's string.h fails to declare this.
 100   int strcasecmp(const char *, const char *);
 101 }
 102 #endif /* NEED_DECLARATION_STRCASECMP */
 103 #endif /* HAVE_STRCASECMP */
 104
 105 #if !defined(_AIX) && !defined(sinix) && !defined(__sinix__)
 106 #ifdef HAVE_STRNCASECMP
 107 #ifdef NEED_DECLARATION_STRNCASECMP
 108 extern "C" {
 109   // SunOS's string.h fails to declare this.
 110   int strncasecmp(const char *, const char *, int);
 111 }
 112 #endif /* NEED_DECLARATION_STRNCASECMP */
 113 #endif /* HAVE_STRNCASECMP */
 114 #endif /* !_AIX && !sinix && !__sinix__ */
 115
 116 #ifndef HAVE_STRCASECMP
 117 #define strcasecmp(a,b) strcmp((a),(b))
 118 #endif
 119
 120 #ifndef HAVE_STRNCASECMP
 121 #define strncasecmp(a,b,c) strncmp((a),(b),(c))
 122 #endif
 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
 157 const double PI = 3.14159265358979323846;
 158
 159 /* ad_delete deletes an array of objects with destructors;
 160 a_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 */