diff options
Diffstat (limited to 'gcc-4.2.1/gcc/ada/i-cstrin.ads')
| -rw-r--r-- | gcc-4.2.1/gcc/ada/i-cstrin.ads | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/gcc-4.2.1/gcc/ada/i-cstrin.ads b/gcc-4.2.1/gcc/ada/i-cstrin.ads new file mode 100644 index 000000000..5ea063ab0 --- /dev/null +++ b/gcc-4.2.1/gcc/ada/i-cstrin.ads @@ -0,0 +1,107 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT COMPILER COMPONENTS -- +-- -- +-- I N T E R F A C E S . C . S T R I N G S -- +-- -- +-- S p e c -- +-- -- +-- Copyright (C) 1993-2005, Free Software Foundation, Inc. -- +-- -- +-- This specification is derived from the Ada Reference Manual for use with -- +-- GNAT. The copyright notice above, and the license provisions that follow -- +-- apply solely to the contents of the part following the private keyword. -- +-- -- +-- GNAT is free software; you can redistribute it and/or modify it under -- +-- terms of the GNU General Public License as published by the Free Soft- -- +-- ware Foundation; either version 2, or (at your option) any later ver- -- +-- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- +-- OUT 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 distributed with GNAT; see file COPYING. If not, write -- +-- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, -- +-- Boston, MA 02110-1301, USA. -- +-- -- +-- As a special exception, if other files instantiate generics from this -- +-- unit, or you link this unit with other files to produce an executable, -- +-- this unit does not by itself cause the resulting executable to be -- +-- covered by the GNU General Public License. This exception does not -- +-- however invalidate any other reasons why the executable file might be -- +-- covered by the GNU Public License. -- +-- -- +-- GNAT was originally developed by the GNAT team at New York University. -- +-- Extensive contributions were provided by Ada Core Technologies Inc. -- +-- -- +------------------------------------------------------------------------------ + +package Interfaces.C.Strings is + pragma Preelaborate; + + type char_array_access is access all char_array; + + pragma Warnings (Off); + pragma No_Strict_Aliasing (char_array_access); + pragma Warnings (On); + -- Since this type is used for external interfacing, with the pointer + -- coming from who knows where, it seems a good idea to turn off any + -- strict aliasing assumptions for this type. We turn off warnings for + -- this pragma to deal with being compiled with an earlier GNAT version + -- that does not recognize this pragma. + + type chars_ptr is private; + + type chars_ptr_array is array (size_t range <>) of chars_ptr; + + Null_Ptr : constant chars_ptr; + + function To_Chars_Ptr + (Item : char_array_access; + Nul_Check : Boolean := False) return chars_ptr; + + function New_Char_Array (Chars : char_array) return chars_ptr; + + function New_String (Str : String) return chars_ptr; + + procedure Free (Item : in out chars_ptr); + + Dereference_Error : exception; + + function Value (Item : chars_ptr) return char_array; + + function Value + (Item : chars_ptr; + Length : size_t) return char_array; + + function Value (Item : chars_ptr) return String; + + function Value + (Item : chars_ptr; + Length : size_t) return String; + + function Strlen (Item : chars_ptr) return size_t; + + procedure Update + (Item : chars_ptr; + Offset : size_t; + Chars : char_array; + Check : Boolean := True); + + procedure Update + (Item : chars_ptr; + Offset : size_t; + Str : String; + Check : Boolean := True); + + Update_Error : exception; + +private + type chars_ptr is access all Character; + + pragma No_Strict_Aliasing (chars_ptr); + -- Since this type is used for external interfacing, with the pointer + -- coming from who knows where, it seems a good idea to turn off any + -- strict aliasing assumptions for this type. + + Null_Ptr : constant chars_ptr := null; +end Interfaces.C.Strings; |