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--- Ada bindings for GCC internals.
--- Copyright (C) 2002, 2003, 2004, 2005 Tristan Gingold
---
--- GHDL is free software; you can redistribute it and/or modify it under
--- the terms of the GNU General Public License as published by the Free
--- Software Foundation; either version 2, or (at your option) any later
--- version.
---
--- GHDL is distributed in the hope that it will be useful, but WITHOUT ANY
--- WARRANTY; without even the implied warranty of MERCHANTABILITY or
--- FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
--- for more details.
---
--- You should have received a copy of the GNU General Public License
--- along with GCC; see the file COPYING. If not, write to the Free
--- Software Foundation, 59 Temple Place - Suite 330, Boston, MA
--- 02111-1307, USA.
-with Ada.Unchecked_Conversion;
-with System;
-
-package C is
- pragma Preelaborate (C);
-
- -- Representation of a C String: this is an access to a bounded string.
- -- Therefore, with GNAT, such an access is a thin pointer.
- subtype Fat_C_String is String (Positive);
- type C_String is access all Fat_C_String;
- pragma Convention (C, C_String);
-
- -- Convert an address to a C_STRING.
- function To_C_String is new Ada.Unchecked_Conversion
- (Source => System.Address, Target => C_String);
-
- -- NULL for a string.
- C_String_Null : constant C_String;
-
- -- Convert an Ada access string to a C_String.
- -- This simply takes the address of the first character of ACC. This
- -- is unchecked, so be careful with the life of ACC.
- -- The last element of the string designated by ACC must be the NUL-char.
- -- This is a little bit more restrictive than being only NUL-terminated.
- function To_C_String (Acc : access String) return C_String;
-
- -- Return the length of a C String (ie, the number of characters before
- -- the Nul).
- function C_String_Len (Str : C_String) return Natural;
-
- -- An (very large) array of C String. This is the type of ARGV.
- type C_String_Array is array (Natural) of C_String;
- pragma Convention (C, C_String_Array);
-
- -- A structure for a string (len and address).
- type C_Str_Len is record
- Len : Natural;
- Str : C_String;
- end record;
- pragma Convention (C_Pass_By_Copy, C_Str_Len);
-
- type C_Str_Len_Acc is access C_Str_Len;
-
- function Image (Str : C_Str_Len) return String;
-private
- C_String_Null : constant C_String := null;
-end C;