| ------------------------------------------------------------------------------ |
| -- -- |
| -- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS -- |
| -- -- |
| -- S Y S T E M . C O N C A T _ 3 -- |
| -- -- |
| -- S p e c -- |
| -- -- |
| -- Copyright (C) 2008-2013, 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 three string |
| -- operands. It is used when we want to save space in the generated code. |
| |
| pragma Compiler_Unit_Warning; |
| |
| package System.Concat_3 is |
| |
| procedure Str_Concat_3 (R : out String; S1, S2, S3 : String); |
| -- Performs the operation R := S1 & S2 & S3. The bounds of R are known to |
| -- be correct (usually set by a call to the Str_Concat_Bounds_3 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_3 |
| (Lo, Hi : out Natural; |
| S1, S2, S3 : String); |
| -- Assigns to Lo..Hi the bounds of the result of concatenating the three |
| -- given strings, following the rules in the RM regarding null operands. |
| |
| end System.Concat_3; |
