gcc/ada/s-crtl.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                        GNAT RUN-TIME COMPONENTS                          --
   4 --                                                                          --
   5 --                          S Y S T E M . C R T L                           --
   6 --                                                                          --
   7 --                                 S p e c                                  --
   8 --                                                                          --
   9 --          Copyright (C) 2003-2006, Free Software Foundation, Inc.         --
  10 --                                                                          --
  11 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
  12 -- terms of the  GNU General Public License as published  by the Free Soft- --
  13 -- ware  Foundation;  either version 2,  or (at your option) any later ver- --
  14 -- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
  15 -- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
  16 -- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
  17 -- for  more details.  You should have  received  a copy of the GNU General --
  18 -- Public License  distributed with GNAT;  see file COPYING.  If not, write --
  19 -- to  the  Free Software Foundation,  51  Franklin  Street,  Fifth  Floor, --
  20 -- Boston, MA 02110-1301, USA.                                              --
  21 --                                                                          --
  22 -- As a special exception,  if other files  instantiate  generics from this --
  23 -- unit, or you link  this unit with other files  to produce an executable, --
  24 -- this  unit  does not  by itself cause  the resulting  executable  to  be --
  25 -- covered  by the  GNU  General  Public  License.  This exception does not --
  26 -- however invalidate  any other reasons why  the executable file  might be --
  27 -- covered by the  GNU Public License.                                      --
  28 --                                                                          --
  29 -- GNAT was originally developed  by the GNAT team at  New York University. --
  30 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  31 --                                                                          --
  32 ------------------------------------------------------------------------------
  33
  34 --  This package provides the low level interface to the C Run Time Library
  35 --  on non-VMS systems.
  36
  37 with System.Parameters;
  38
  39 package System.CRTL is
  40    pragma Preelaborate;
  41
  42    subtype chars is System.Address;
  43    --  Pointer to null-terminated array of characters
  44
  45    subtype DIRs is System.Address;
  46    --  Corresponds to the C type DIR*
  47
  48    subtype FILEs is System.Address;
  49    --  Corresponds to the C type FILE*
  50
  51    subtype int is Integer;
  52
  53    type long is range -(2 ** (System.Parameters.long_bits - 1))
  54       .. +(2 ** (System.Parameters.long_bits - 1)) - 1;
  55
  56    subtype off_t is Long_Integer;
  57
  58    type size_t is mod 2 ** Standard'Address_Size;
  59
  60    type Filename_Encoding is (UTF8, ASCII_8bits);
  61    for Filename_Encoding use (UTF8 => 0, ASCII_8bits => 1);
  62    pragma Convention (C, Filename_Encoding);
  63    --  Describes the filename's encoding
  64
  65    function atoi (A : System.Address) return Integer;
  66    pragma Import (C, atoi, "atoi");
  67
  68    procedure clearerr (stream : FILEs);
  69    pragma Import (C, clearerr, "clearerr");
  70
  71    function dup  (handle : int) return int;
  72    pragma Import (C, dup, "dup");
  73
  74    function dup2 (from, to : int) return int;
  75    pragma Import (C, dup2, "dup2");
  76
  77    function fclose (stream : FILEs) return int;
  78    pragma Import (C, fclose, "fclose");
  79
  80    function fdopen (handle : int; mode : chars) return FILEs;
  81    pragma Import (C, fdopen, "fdopen");
  82
  83    function fflush (stream : FILEs) return int;
  84    pragma Import (C, fflush, "fflush");
  85
  86    function fgetc (stream : FILEs) return int;
  87    pragma Import (C, fgetc, "fgetc");
  88
  89    function fgets (strng : chars; n : int; stream : FILEs) return chars;
  90    pragma Import (C, fgets, "fgets");
  91
  92    function fopen
  93      (filename : chars;
  94       mode     : chars;
  95       encoding : Filename_Encoding := UTF8) return FILEs;
  96    pragma Import (C, fopen, "__gnat_fopen");
  97
  98    function fputc (C : int; stream : FILEs) return int;
  99    pragma Import (C, fputc, "fputc");
 100
 101    function fputs (Strng : chars; Stream : FILEs) return int;
 102    pragma Import (C, fputs, "fputs");
 103
 104    procedure free (Ptr : System.Address);
 105    pragma Import (C, free, "free");
 106
 107    function freopen
 108      (filename : chars;
 109       mode     : chars;
 110       stream   : FILEs;
 111       encoding : Filename_Encoding := UTF8) return FILEs;
 112    pragma Import (C, freopen, "__gnat_freopen");
 113
 114    function fseek
 115      (stream : FILEs;
 116       offset : long;
 117       origin : int)
 118       return   int;
 119    pragma Import (C, fseek, "fseek");
 120
 121    function ftell (stream : FILEs) return long;
 122    pragma Import (C, ftell, "ftell");
 123
 124    function getenv (S : String) return System.Address;
 125    pragma Import (C, getenv, "getenv");
 126
 127    function isatty (handle : int) return int;
 128    pragma Import (C, isatty, "isatty");
 129
 130    function lseek (fd : int; offset : off_t; direction : int) return off_t;
 131    pragma Import (C, lseek, "lseek");
 132
 133    function malloc (Size : size_t) return System.Address;
 134    pragma Import (C, malloc, "malloc");
 135
 136    procedure memcpy (S1 : System.Address; S2 : System.Address; N : size_t);
 137    pragma Import (C, memcpy, "memcpy");
 138
 139    procedure memmove (S1 : System.Address; S2 : System.Address; N : size_t);
 140    pragma Import (C, memmove, "memmove");
 141
 142    procedure mktemp (template : chars);
 143    pragma Import (C, mktemp, "mktemp");
 144
 145    function pclose (stream : System.Address) return int;
 146    pragma Import (C, pclose, "pclose");
 147
 148    function popen (command, mode : System.Address) return System.Address;
 149    pragma Import (C, popen, "popen");
 150
 151    function read (fd : int; buffer : chars; nbytes : int) return int;
 152    pragma Import (C, read, "read");
 153
 154    function realloc
 155      (Ptr : System.Address; Size : size_t) return System.Address;
 156    pragma Import (C, realloc, "realloc");
 157
 158    procedure rewind (stream : FILEs);
 159    pragma Import (C, rewind, "rewind");
 160
 161    procedure rmdir (dir_name : String);
 162    pragma Import (C, rmdir, "rmdir");
 163
 164    function setvbuf
 165      (stream : FILEs;
 166       buffer : chars;
 167       mode   : int;
 168       size   : size_t)
 169       return   int;
 170    pragma Import (C, setvbuf, "setvbuf");
 171
 172    procedure tmpnam (string : chars);
 173    pragma Import (C, tmpnam, "tmpnam");
 174
 175    function tmpfile return FILEs;
 176    pragma Import (C, tmpfile, "tmpfile");
 177
 178    function ungetc (c : int; stream : FILEs) return int;
 179    pragma Import (C, ungetc, "ungetc");
 180
 181    function unlink (filename : chars) return int;
 182    pragma Import (C, unlink, "unlink");
 183
 184    function write (fd : int; buffer : chars; nbytes : int) return int;
 185    pragma Import (C, write, "write");
 186
 187 end System.CRTL;