| ------------------------------------------------------------------------------ |
| -- -- |
| -- GNAT RUN-TIME COMPONENTS -- |
| -- -- |
| -- A D A . S T R E A M S -- |
| -- -- |
| -- S p e c -- |
| -- -- |
| -- Copyright (C) 1992-2021, 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 3, 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. -- |
| -- -- |
| -- As a special exception under Section 7 of GPL version 3, you are granted -- |
| -- additional permissions described in the GCC Runtime Library Exception, -- |
| -- version 3.1, as published by the Free Software Foundation. -- |
| -- -- |
| -- You should have received a copy of the GNU General Public License and -- |
| -- a copy of the GCC Runtime Library Exception along with this program; -- |
| -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -- |
| -- <http://www.gnu.org/licenses/>. -- |
| -- -- |
| -- GNAT was originally developed by the GNAT team at New York University. -- |
| -- Extensive contributions were provided by Ada Core Technologies Inc. -- |
| -- -- |
| ------------------------------------------------------------------------------ |
| |
| package Ada.Streams is |
| pragma Pure; |
| |
| type Root_Stream_Type is abstract tagged limited private; |
| pragma Preelaborable_Initialization (Root_Stream_Type); |
| |
| type Stream_Element is mod 2 ** Standard'Storage_Unit; |
| |
| type Stream_Element_Offset is new Long_Long_Integer; |
| -- Stream_Element_Offset needs 64 bits to accommodate large stream files. |
| -- However, rather than make this explicitly 64-bits we derive from |
| -- Long_Long_Integer. In normal usage this will have the same effect. |
| -- But in the case of CodePeer with a target configuration file with a |
| -- maximum integer size of 32, it allows analysis of this unit. |
| |
| subtype Stream_Element_Count is |
| Stream_Element_Offset range 0 .. Stream_Element_Offset'Last; |
| |
| type Stream_Element_Array is |
| array (Stream_Element_Offset range <>) of aliased Stream_Element; |
| |
| procedure Read |
| (Stream : in out Root_Stream_Type; |
| Item : out Stream_Element_Array; |
| Last : out Stream_Element_Offset) |
| is abstract; |
| |
| procedure Write |
| (Stream : in out Root_Stream_Type; |
| Item : Stream_Element_Array) |
| is abstract; |
| |
| private |
| |
| type Root_Stream_Type is abstract tagged limited null record; |
| |
| -- Stream attributes for Stream_Element_Array: trivially call the |
| -- corresponding stream primitive for the whole array, instead of doing |
| -- so element by element. |
| |
| procedure Read_SEA |
| (S : access Root_Stream_Type'Class; |
| V : out Stream_Element_Array); |
| |
| procedure Write_SEA |
| (S : access Root_Stream_Type'Class; |
| V : Stream_Element_Array); |
| |
| for Stream_Element_Array'Read use Read_SEA; |
| for Stream_Element_Array'Write use Write_SEA; |
| |
| end Ada.Streams; |
