------------------------------------------------------------------------------ -- -- -- GNAT COMPILER COMPONENTS -- -- -- -- S Y S T E M . C O M M U N I C A T I O N -- -- -- -- B o d y -- -- -- -- Copyright (C) 2001-2009, AdaCore -- -- -- -- 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 -- -- . -- -- -- -- GNAT was originally developed by the GNAT team at New York University. -- -- Extensive contributions were provided by Ada Core Technologies Inc. -- -- -- ------------------------------------------------------------------------------ package body System.Communication is subtype SEO is Ada.Streams.Stream_Element_Offset; ---------------- -- Last_Index -- ---------------- function Last_Index (First : Ada.Streams.Stream_Element_Offset; Count : CRTL.size_t) return Ada.Streams.Stream_Element_Offset is use type Ada.Streams.Stream_Element_Offset; use type System.CRTL.size_t; begin if First = SEO'First and then Count = 0 then raise Constraint_Error with "last index out of range (no element transferred)"; else return First + SEO (Count) - 1; end if; end Last_Index; end System.Communication;