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------------------------------------------------------------------------------
-- --
-- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS --
-- --
-- S Y S T E M . C O N C A T _ 4 --
-- --
-- S p e c --
-- --
-- Copyright (C) 2008-2009, Free Software Foundation, Inc. --
-- --
-- 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. --
-- --
------------------------------------------------------------------------------
-- This package contains a procedure for runtime concatenation of four string
-- operands. It is used when we want to save space in the generated code.
pragma Compiler_Unit;
package System.Concat_4 is
procedure Str_Concat_4 (R : out String; S1, S2, S3, S4 : String);
-- Performs the operation R := S1 & S2 & S3 & S4. The bounds
-- of R are known to be correct (usually set by a call to the
-- Str_Concat_Bounds_5 procedure below), so no bounds checks are required,
-- and it is known that none of the input operands overlaps R. No
-- assumptions can be made about the lower bounds of any of the operands.
procedure Str_Concat_Bounds_4
(Lo, Hi : out Natural;
S1, S2, S3, S4 : String);
-- Assigns to Lo..Hi the bounds of the result of concatenating the four
-- given strings, following the rules in the RM regarding null operands.
end System.Concat_4;
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