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[/] [openrisc/] [tags/] [gnu-src/] [gcc-4.5.1/] [gcc-4.5.1-or32-1.0rc1/] [gcc/] [ada/] [s-strops.adb] - Rev 338
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------------------------------------------------------------------------------ -- -- -- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS -- -- -- -- S Y S T E M . S T R I N G _ O P S -- -- -- -- 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 is ---------------- -- Str_Concat -- ---------------- function Str_Concat (X, Y : String) return String is begin if X'Length = 0 then return Y; else declare L : constant Natural := X'Length + Y'Length; R : String (X'First .. X'First + L - 1); begin R (X'Range) := X; R (X'First + X'Length .. R'Last) := Y; return R; end; end if; end Str_Concat; ------------------- -- Str_Concat_CC -- ------------------- function Str_Concat_CC (X, Y : Character) return String is R : String (1 .. 2); begin R (1) := X; R (2) := Y; return R; end Str_Concat_CC; ------------------- -- Str_Concat_CS -- ------------------- function Str_Concat_CS (X : Character; Y : String) return String is R : String (1 .. Y'Length + 1); begin R (1) := X; R (2 .. R'Last) := Y; return R; end Str_Concat_CS; ------------------- -- Str_Concat_SC -- ------------------- function Str_Concat_SC (X : String; Y : Character) return String is begin if X'Length = 0 then return (1 => Y); else declare R : String (X'First .. X'Last + 1); begin R (X'Range) := X; R (R'Last) := Y; return R; end; end if; end Str_Concat_SC; end System.String_Ops;