Mercurial > hg > CbC > CbC_gcc
diff gcc/ada/libgnat/a-stream.ads @ 111:04ced10e8804
gcc 7
author | kono |
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date | Fri, 27 Oct 2017 22:46:09 +0900 |
parents | |
children | 84e7813d76e9 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gcc/ada/libgnat/a-stream.ads Fri Oct 27 22:46:09 2017 +0900 @@ -0,0 +1,87 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT RUN-TIME COMPONENTS -- +-- -- +-- A D A . S T R E A M S -- +-- -- +-- S p e c -- +-- -- +-- Copyright (C) 1992-2017, 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;