src/include/lib.h

   1 // -*- C++ -*-
   2 /* Copyright (C) 1989-2000 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   const char *i_to_a(int);
  26   const char *if_to_a(int, int);
  27 }
  28
  29 #include <groff-getopt.h>
  30
  31 char *strsave(const char *s);
  32 int is_prime(unsigned);
  33
  34 #include <stdio.h>
  35
  36 FILE *xtmpfile(char **namep=0, char *postfix=0, int do_unlink=1);
  37 char *xtmptemplate(char *extension=0);
  38
  39 #ifndef STDIO_H_DECLARES_POPEN
  40
  41 extern "C" { FILE *popen(const char *, const char *); }
  42
  43 #endif /* not STDIO_H_DECLARES_POPEN */
  44
  45 #ifndef STDIO_H_DECLARES_PCLOSE
  46
  47 extern "C" { int pclose (FILE *); }
  48
  49 #endif /* not STDIO_H_DECLARES_PCLOSE */
  50
  51 int interpret_lf_args(const char *p);
  52
  53 extern char illegal_char_table[];
  54
  55 inline int illegal_input_char(int c)
  56 {
  57   return c >= 0 && illegal_char_table[c];
  58 }
  59
  60 #ifndef HAVE_STRCASECMP
  61 #define strcasecmp(a,b) strcmp((a),(b))
  62 #endif
  63
  64 #ifndef HAVE_STRNCASECMP
  65 #define strncasecmp(a,b,c) strncmp((a),(b),(c))
  66 #endif
  67
  68 #ifdef HAVE_CC_LIMITS_H
  69 #include <limits.h>
  70 #else /* not HAVE_CC_LIMITS_H */
  71 #define INT_MAX 2147483647
  72 #endif /* not HAVE_CC_LIMITS_H */
  73
  74 /* It's not safe to rely on people getting INT_MIN right (ie signed). */
  75
  76 #ifdef INT_MIN
  77 #undef INT_MIN
  78 #endif
  79
  80 #ifdef CFRONT_ANSI_BUG
  81
  82 /* This works around a bug in cfront 2.0 used with ANSI C compilers. */
  83
  84 #define INT_MIN ((long)(-INT_MAX-1))
  85
  86 #else /* not CFRONT_ANSI_BUG */
  87
  88 #define INT_MIN (-INT_MAX-1)
  89
  90 #endif /* not CFRONT_ANSI_BUG */
  91
  92 /* Maximum number of digits in the decimal representation of an int
  93 (not including the -). */
  94
  95 #define INT_DIGITS 10
  96
  97 #ifdef PI
  98 #undef PI
  99 #endif
 100
 101 const double PI = 3.14159265358979323846;
 102
 103 /* ad_delete deletes an array of objects with destructors;
 104 a_delete deletes an array of objects without destructors */
 105
 106 #ifdef ARRAY_DELETE_NEEDS_SIZE
 107 /* for 2.0 systems */
 108 #define ad_delete(size) delete [size]
 109 #define a_delete delete
 110 #else /* not ARRAY_DELETE_NEEDS_SIZE */
 111 /* for ARM systems */
 112 #define ad_delete(size) delete []
 113 #define a_delete delete []
 114 #endif /* not ARRAY_DELETE_NEEDS_SIZE */