gcc/ada/libgnat/s-conca3.adb

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                 GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS                 --
   4 --                                                                          --
   5 --                      S Y S T E M . C O N C A T _ 3                       --
   6 --                                                                          --
   7 --                                 B o d y                                  --
   8 --                                                                          --
   9 --            Copyright (C) 2008-2024, 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 package body System.Concat_3 is
  33
  34    pragma Suppress (All_Checks);
  35
  36    ------------------
  37    -- Str_Concat_3 --
  38    ------------------
  39
  40    procedure Str_Concat_3 (R : out String; S1, S2, S3 : String) is
  41       F, L : Natural;
  42
  43    begin
  44       F := R'First;
  45       L := F + S1'Length - 1;
  46       R (F .. L) := S1;
  47
  48       F := L + 1;
  49       L := F + S2'Length - 1;
  50       R (F .. L) := S2;
  51
  52       F := L + 1;
  53       L := F + S3'Length - 1;
  54       R (F .. L) := S3;
  55    end Str_Concat_3;
  56
  57 end System.Concat_3;