1------------------------------------------------------------------------------ 2-- -- 3-- GNAT RUN-TIME COMPONENTS -- 4-- -- 5-- S Y S T E M . S T R I N G _ O P S _ C O N C A T _ 5 -- 6-- -- 7-- B o d y -- 8-- -- 9-- Copyright (C) 1992-2009, Free Software Foundation, Inc. -- 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-- NOTE: This package is obsolescent. It is no longer used by the compiler 33-- which now generates concatenation inline. It is retained only because 34-- it may be used during bootstrapping using old versions of the compiler. 35 36pragma Compiler_Unit; 37 38package body System.String_Ops_Concat_5 is 39 40 ------------------ 41 -- Str_Concat_5 -- 42 ------------------ 43 44 function Str_Concat_5 (S1, S2, S3, S4, S5 : String) return String is 45 begin 46 if S1'Length = 0 then 47 return S2 & S3 & S4 & S5; 48 49 else 50 declare 51 L12 : constant Natural := S1'Length + S2'Length; 52 L13 : constant Natural := L12 + S3'Length; 53 L14 : constant Natural := L13 + S4'Length; 54 L15 : constant Natural := L14 + S5'Length; 55 R : String (S1'First .. S1'First + L15 - 1); 56 57 begin 58 R (S1'First .. S1'Last) := S1; 59 R (S1'Last + 1 .. S1'First + L12 - 1) := S2; 60 R (S1'First + L12 .. S1'First + L13 - 1) := S3; 61 R (S1'First + L13 .. S1'First + L14 - 1) := S4; 62 R (S1'First + L14 .. R'Last) := S5; 63 return R; 64 end; 65 end if; 66 end Str_Concat_5; 67 68end System.String_Ops_Concat_5; 69