include/lib.h

   1 // -*- C++ -*-
   2 /* Copyright (C) 1989, 1990, 1991, 1992 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 strerror
  23   char *strerror(int);
  24 #endif
  25 #ifndef __BORLANDC__
  26   const char *itoa(int);
  27   const char *iftoa(int, int);
  28 #endif /* __BORLANDC__ */
  29 }
  30
  31 #ifdef STDLIB_H_DECLARES_GETOPT
  32 #include <stdlib.h>
  33 #else /* not STDLIB_H_DECLARES_GETOPT */
  34 #ifdef UNISTD_H_DECLARES_GETOPT
  35 #include <sys/types.h>
  36 #include <unistd.h>
  37 #else /* not UNISTD_H_DECLARES_GETOPT */
  38 extern "C" {
  39   int getopt(int, char *const *, const char *);
  40 }
  41 #endif /* not UNISTD_H_DECLARES_GETOPT */
  42
  43 extern "C" {
  44   extern char *optarg;
  45   extern int optind;
  46   extern int opterr;
  47 }
  48
  49 #endif /* not STDLIB_H_DECLARES_GETOPT */
  50
  51 char *strsave(const char *s);
  52 int is_prime(unsigned);
  53
  54 #include <stdio.h>
  55
  56 FILE *xtmpfile();
  57
  58 #ifndef STDIO_H_DECLARES_POPEN
  59
  60 extern "C" { FILE *popen(const char *, const char *); }
  61
  62 #endif /* not STDIO_H_DECLARES_POPEN */
  63
  64 #ifndef STDIO_H_DECLARES_PCLOSE
  65
  66 extern "C" { int pclose (FILE *); }
  67
  68 #endif /* not STDIO_H_DECLARES_PCLOSE */
  69
  70 int interpret_lf_args(const char *p);
  71
  72 extern char illegal_char_table[];
  73
  74 inline int illegal_input_char(int c)
  75 {
  76   return c >= 0 && illegal_char_table[c];
  77 }
  78
  79 #ifdef HAVE_CC_LIMITS_H
  80 #include <limits.h>
  81 #else /* not HAVE_CC_LIMITS_H */
  82 #define INT_MAX 2147483647
  83 #endif /* not HAVE_CC_LIMITS_H */
  84
  85 /* It's not safe to rely on people getting INT_MIN right (ie signed). */
  86
  87 #ifdef INT_MIN
  88 #undef INT_MIN
  89 #endif
  90
  91 #ifdef CFRONT_ANSI_BUG
  92
  93 /* This works around a bug in cfront 2.0 used with ANSI C compilers. */
  94
  95 #define INT_MIN ((long)(-INT_MAX-1))
  96
  97 #else /* not CFRONT_ANSI_BUG */
  98
  99 #define INT_MIN (-INT_MAX-1)
 100
 101 #endif /* not CFRONT_ANSI_BUG */
 102
 103 /* Maximum number of digits in the decimal representation of an int
 104 (not including the -). */
 105
 106 #define INT_DIGITS 10
 107
 108 #ifdef PI
 109 #undef PI
 110 #endif
 111
 112 const double PI = 3.14159265358979323846;
 113
 114 /* ad_delete deletes an array of objects with destructors;
 115 a_delete deletes an array of objects without destructors */
 116
 117 #ifdef ARRAY_DELETE_NEEDS_SIZE
 118 /* for 2.0 systems */
 119 #define ad_delete(size) delete [size]
 120 #define a_delete delete
 121 #else /* not ARRAY_DELETE_NEEDS_SIZE */
 122 /* for ARM systems */
 123 #define ad_delete(size) delete []
 124 #define a_delete delete []
 125 #endif /* not ARRAY_DELETE_NEEDS_SIZE */