| 1 |
706 |
jeremybenn |
------------------------------------------------------------------------------
|
| 2 |
|
|
-- --
|
| 3 |
|
|
-- GNAT COMPILER COMPONENTS --
|
| 4 |
|
|
-- --
|
| 5 |
|
|
-- S Y S T E M . C O M M U N I C A T I O N --
|
| 6 |
|
|
-- --
|
| 7 |
|
|
-- S p e c --
|
| 8 |
|
|
-- --
|
| 9 |
|
|
-- Copyright (C) 2001-2009, AdaCore --
|
| 10 |
|
|
-- --
|
| 11 |
|
|
-- GNAT is free software; you can redistribute it and/or modify it under --
|
| 12 |
|
|
-- terms of the GNU General Public License as published by the Free Soft- --
|
| 13 |
|
|
-- ware Foundation; either version 3, or (at your option) any later ver- --
|
| 14 |
|
|
-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
|
| 15 |
|
|
-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
|
| 16 |
|
|
-- or FITNESS FOR A PARTICULAR PURPOSE. --
|
| 17 |
|
|
-- --
|
| 18 |
|
|
-- As a special exception under Section 7 of GPL version 3, you are granted --
|
| 19 |
|
|
-- additional permissions described in the GCC Runtime Library Exception, --
|
| 20 |
|
|
-- version 3.1, as published by the Free Software Foundation. --
|
| 21 |
|
|
-- --
|
| 22 |
|
|
-- You should have received a copy of the GNU General Public License and --
|
| 23 |
|
|
-- a copy of the GCC Runtime Library Exception along with this program; --
|
| 24 |
|
|
-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
|
| 25 |
|
|
-- <http://www.gnu.org/licenses/>. --
|
| 26 |
|
|
-- --
|
| 27 |
|
|
-- GNAT was originally developed by the GNAT team at New York University. --
|
| 28 |
|
|
-- Extensive contributions were provided by Ada Core Technologies Inc. --
|
| 29 |
|
|
-- --
|
| 30 |
|
|
------------------------------------------------------------------------------
|
| 31 |
|
|
|
| 32 |
|
|
-- Common support unit for GNAT.Sockets and GNAT.Serial_Communication
|
| 33 |
|
|
|
| 34 |
|
|
with Ada.Streams;
|
| 35 |
|
|
with System.CRTL;
|
| 36 |
|
|
|
| 37 |
|
|
package System.Communication is
|
| 38 |
|
|
|
| 39 |
|
|
function Last_Index
|
| 40 |
|
|
(First : Ada.Streams.Stream_Element_Offset;
|
| 41 |
|
|
Count : CRTL.size_t) return Ada.Streams.Stream_Element_Offset;
|
| 42 |
|
|
-- Compute the Last OUT parameter for the various Read / Receive
|
| 43 |
|
|
-- subprograms: returns First + Count - 1.
|
| 44 |
|
|
--
|
| 45 |
|
|
-- When First = Stream_Element_Offset'First and Res = 0, Constraint_Error
|
| 46 |
|
|
-- is raised. This is consistent with the semantics of stream operations
|
| 47 |
|
|
-- as clarified in AI95-227.
|
| 48 |
|
|
|
| 49 |
|
|
end System.Communication;
|
