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Diffstat (limited to 'gcc/ada/s-sopco5.adb')
| -rw-r--r-- | gcc/ada/s-sopco5.adb | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/gcc/ada/s-sopco5.adb b/gcc/ada/s-sopco5.adb new file mode 100644 index 000000000..8467028c6 --- /dev/null +++ b/gcc/ada/s-sopco5.adb @@ -0,0 +1,68 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT RUN-TIME COMPONENTS -- +-- -- +-- S Y S T E M . S T R I N G _ O P S _ C O N C A T _ 5 -- +-- -- +-- B o d y -- +-- -- +-- Copyright (C) 1992-2009, 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. -- +-- -- +------------------------------------------------------------------------------ + +-- NOTE: This package is obsolescent. It is no longer used by the compiler +-- which now generates concatenation inline. It is retained only because +-- it may be used during bootstrapping using old versions of the compiler. + +pragma Compiler_Unit; + +package body System.String_Ops_Concat_5 is + + ------------------ + -- Str_Concat_5 -- + ------------------ + + function Str_Concat_5 (S1, S2, S3, S4, S5 : String) return String is + begin + if S1'Length = 0 then + return S2 & S3 & S4 & S5; + + else + declare + L12 : constant Natural := S1'Length + S2'Length; + L13 : constant Natural := L12 + S3'Length; + L14 : constant Natural := L13 + S4'Length; + L15 : constant Natural := L14 + S5'Length; + R : String (S1'First .. S1'First + L15 - 1); + + begin + R (S1'First .. S1'Last) := S1; + R (S1'Last + 1 .. S1'First + L12 - 1) := S2; + R (S1'First + L12 .. S1'First + L13 - 1) := S3; + R (S1'First + L13 .. S1'First + L14 - 1) := S4; + R (S1'First + L14 .. R'Last) := S5; + return R; + end; + end if; + end Str_Concat_5; + +end System.String_Ops_Concat_5; |