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------------------------------------------------------------------------------
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-- --
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-- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS --
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-- --
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-- S Y S T E M . C O N C A T _ 3 --
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-- --
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-- S p e c --
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-- --
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-- Copyright (C) 2008-2009, Free Software Foundation, Inc. --
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-- --
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-- GNAT is free software; you can redistribute it and/or modify it under --
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-- terms of the GNU General Public License as published by the Free Soft- --
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-- ware Foundation; either version 3, or (at your option) any later ver- --
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-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
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-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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-- or FITNESS FOR A PARTICULAR PURPOSE. --
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-- --
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-- As a special exception under Section 7 of GPL version 3, you are granted --
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-- additional permissions described in the GCC Runtime Library Exception, --
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-- version 3.1, as published by the Free Software Foundation. --
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-- --
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-- You should have received a copy of the GNU General Public License and --
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-- a copy of the GCC Runtime Library Exception along with this program; --
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-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
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-- <http://www.gnu.org/licenses/>. --
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-- --
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-- GNAT was originally developed by the GNAT team at New York University. --
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-- Extensive contributions were provided by Ada Core Technologies Inc. --
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-- --
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------------------------------------------------------------------------------
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-- This package contains a procedure for runtime concatenation of three string
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-- operands. It is used when we want to save space in the generated code.
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pragma Compiler_Unit;
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package System.Concat_3 is
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procedure Str_Concat_3 (R : out String; S1, S2, S3 : String);
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-- Performs the operation R := S1 & S2 & S3. The bounds of R are known to
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-- be correct (usually set by a call to the Str_Concat_Bounds_3 procedure
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-- below), so no bounds checks are required, and it is known that none of
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-- the input operands overlaps R. No assumptions can be made about the
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-- lower bounds of any of the operands.
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procedure Str_Concat_Bounds_3
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(Lo, Hi : out Natural;
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S1, S2, S3 : String);
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-- Assigns to Lo..Hi the bounds of the result of concatenating the three
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-- given strings, following the rules in the RM regarding null operands.
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end System.Concat_3;
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