src/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(char **namep=0, char *postfix=0, int do_unlink=1);
  57 char *xtmptemplate(char *extension=0);
  58
  59 #ifndef STDIO_H_DECLARES_POPEN
  60
  61 extern "C" { FILE *popen(const char *, const char *); }
  62
  63 #endif /* not STDIO_H_DECLARES_POPEN */
  64
  65 #ifndef STDIO_H_DECLARES_PCLOSE
  66
  67 extern "C" { int pclose (FILE *); }
  68
  69 #endif /* not STDIO_H_DECLARES_PCLOSE */
  70
  71 int interpret_lf_args(const char *p);
  72
  73 extern char illegal_char_table[];
  74
  75 inline int illegal_input_char(int c)
  76 {
  77   return c >= 0 && illegal_char_table[c];
  78 }
  79
  80 #ifndef HAVE_STRCASECMP
  81 #  define       strcasecmp(a,b) strcmp((a),(b))
  82 #endif
  83
  84 #ifdef HAVE_CC_LIMITS_H
  85 #include <limits.h>
  86 #else /* not HAVE_CC_LIMITS_H */
  87 #define INT_MAX 2147483647
  88 #endif /* not HAVE_CC_LIMITS_H */
  89
  90 /* It's not safe to rely on people getting INT_MIN right (ie signed). */
  91
  92 #ifdef INT_MIN
  93 #undef INT_MIN
  94 #endif
  95
  96 #ifdef CFRONT_ANSI_BUG
  97
  98 /* This works around a bug in cfront 2.0 used with ANSI C compilers. */
  99
 100 #define INT_MIN ((long)(-INT_MAX-1))
 101
 102 #else /* not CFRONT_ANSI_BUG */
 103
 104 #define INT_MIN (-INT_MAX-1)
 105
 106 #endif /* not CFRONT_ANSI_BUG */
 107
 108 /* Maximum number of digits in the decimal representation of an int
 109 (not including the -). */
 110
 111 #define INT_DIGITS 10
 112
 113 #ifdef PI
 114 #undef PI
 115 #endif
 116
 117 const double PI = 3.14159265358979323846;
 118
 119 /* ad_delete deletes an array of objects with destructors;
 120 a_delete deletes an array of objects without destructors */
 121
 122 #ifdef ARRAY_DELETE_NEEDS_SIZE
 123 /* for 2.0 systems */
 124 #define ad_delete(size) delete [size]
 125 #define a_delete delete
 126 #else /* not ARRAY_DELETE_NEEDS_SIZE */
 127 /* for ARM systems */
 128 #define ad_delete(size) delete []
 129 #define a_delete delete []
 130 #endif /* not ARRAY_DELETE_NEEDS_SIZE */