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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 body C is
function C_String_Len (Str : C_String) return Natural is
begin
if Str = null then
return 0;
end if;
for I in Str'Range loop
if Str (I) = Character'Val (0) then
return I - 1;
end if;
end loop;
raise Program_Error;
end C_String_Len;
function Image (Str : C_Str_Len) return String is
begin
if Str.Str = null then
return ''' & Character'Val (Str.Len) & ''';
else
return Str.Str (1 .. Str.Len);
end if;
end Image;
function To_C_String (Acc : access String) return C_String
is
function Unchecked_Conversion is new Ada.Unchecked_Conversion
(Source => System.Address, Target => C_String);
begin
-- Check ACC is nul-terminated.
if Acc (Acc.all'Last) /= Character'Val (0) then
raise Program_Error;
end if;
return Unchecked_Conversion (Acc (Acc.all'First)'Address);
end To_C_String;
end C;
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