src/include/lib.h

   1 // -*- C++ -*-
   2 /* Copyright (C) 1989-2000, 2001 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 extern "C" {
  22 #ifndef HAVE_STRERROR
  23   char *strerror(int);
  24 #endif
  25   const char *i_to_a(int);
  26   const char *if_to_a(int, int);
  27 }
  28
  29 /* stdio.h on IRIX, OSF/1, and UWIN includes getopt.h */
  30
  31 #if !(defined(__sgi) \
  32       || (defined(__osf__) && defined(__alpha)) \
  33       || defined(_UWIN))
  34 #include <groff-getopt.h>
  35 #endif
  36
  37 char *strsave(const char *s);
  38 int is_prime(unsigned);
  39
  40 #include <stdio.h>
  41 #include <string.h>
  42 #ifdef HAVE_STRINGS_H
  43 #include <strings.h>
  44 #endif
  45
  46 FILE *xtmpfile(char **namep=0, char *postfix=0, int do_unlink=1);
  47 char *xtmptemplate(char *extension=0);
  48
  49 #ifdef NEED_DECLARATION_POPEN
  50
  51 extern "C" { FILE *popen(const char *, const char *); }
  52
  53 #endif /* NEED_DECLARATION_POPEN */
  54
  55 #ifdef NEED_DECLARATION_PCLOSE
  56
  57 extern "C" { int pclose (FILE *); }
  58
  59 #endif /* NEED_DECLARATION_PCLOSE */
  60
  61 int interpret_lf_args(const char *p);
  62
  63 extern char illegal_char_table[];
  64
  65 inline int illegal_input_char(int c)
  66 {
  67   return c >= 0 && illegal_char_table[c];
  68 }
  69
  70 #if !defined(_AIX) && !defined(sinix) && !defined(__sinix__)
  71 #ifdef HAVE_STRNCASECMP
  72 #ifdef NEED_DECLARATION_STRNCASECMP
  73 extern "C" {
  74   // SunOS's string.h fails to declare this.
  75   int strncasecmp(const char *, const char *, int);
  76 }
  77 #endif /* NEED_DECLARATION_STRNCASECMP */
  78 #endif /* HAVE_STRNCASECMP */
  79 #endif /* !_AIX && !sinix && !__sinix__ */
  80
  81 #ifndef HAVE_STRCASECMP
  82 #define strcasecmp(a,b) strcmp((a),(b))
  83 #endif
  84
  85 #ifndef HAVE_STRNCASECMP
  86 #define strncasecmp(a,b,c) strncmp((a),(b),(c))
  87 #endif
  88
  89 #ifdef HAVE_CC_LIMITS_H
  90 #include <limits.h>
  91 #else /* not HAVE_CC_LIMITS_H */
  92 #define INT_MAX 2147483647
  93 #endif /* not HAVE_CC_LIMITS_H */
  94
  95 /* It's not safe to rely on people getting INT_MIN right (ie signed). */
  96
  97 #ifdef INT_MIN
  98 #undef INT_MIN
  99 #endif
 100
 101 #ifdef CFRONT_ANSI_BUG
 102
 103 /* This works around a bug in cfront 2.0 used with ANSI C compilers. */
 104
 105 #define INT_MIN ((long)(-INT_MAX-1))
 106
 107 #else /* not CFRONT_ANSI_BUG */
 108
 109 #define INT_MIN (-INT_MAX-1)
 110
 111 #endif /* not CFRONT_ANSI_BUG */
 112
 113 /* Maximum number of digits in the decimal representation of an int
 114 (not including the -). */
 115
 116 #define INT_DIGITS 10
 117
 118 #ifdef PI
 119 #undef PI
 120 #endif
 121
 122 const double PI = 3.14159265358979323846;
 123
 124 /* ad_delete deletes an array of objects with destructors;
 125 a_delete deletes an array of objects without destructors */
 126
 127 #ifdef ARRAY_DELETE_NEEDS_SIZE
 128 /* for 2.0 systems */
 129 #define ad_delete(size) delete [size]
 130 #define a_delete delete
 131 #else /* not ARRAY_DELETE_NEEDS_SIZE */
 132 /* for ARM systems */
 133 #define ad_delete(size) delete []
 134 #define a_delete delete []
 135 #endif /* not ARRAY_DELETE_NEEDS_SIZE */