1 ------------------------------------------------------------------------------
3 -- GNU ADA RUNTIME LIBRARY (GNARL) COMPONENTS --
5 -- S Y S T E M . S T R I N G _ O P S --
10 -- Copyright (C) 1992-1998 Free Software Foundation, Inc. --
12 -- GNAT is free software; you can redistribute it and/or modify it under --
13 -- terms of the GNU General Public License as published by the Free Soft- --
14 -- ware Foundation; either version 2, or (at your option) any later ver- --
15 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
16 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
17 -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
18 -- for more details. You should have received a copy of the GNU General --
19 -- Public License distributed with GNAT; see file COPYING. If not, write --
20 -- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
21 -- MA 02111-1307, USA. --
23 -- As a special exception, if other files instantiate generics from this --
24 -- unit, or you link this unit with other files to produce an executable, --
25 -- this unit does not by itself cause the resulting executable to be --
26 -- covered by the GNU General Public License. This exception does not --
27 -- however invalidate any other reasons why the executable file might be --
28 -- covered by the GNU Public License. --
30 -- GNAT was originally developed by the GNAT team at New York University. --
31 -- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
33 ------------------------------------------------------------------------------
35 package body System.String_Ops is
41 function Str_Concat (X, Y : String) return String is
48 L : constant Natural := X'Length + Y'Length;
49 R : String (X'First .. X'First + L - 1);
53 R (X'First + X'Length .. R'Last) := Y;
63 function Str_Concat_CC (X, Y : Character) return String is
76 function Str_Concat_CS (X : Character; Y : String) return String is
77 R : String (1 .. Y'Length + 1);
89 function Str_Concat_SC (X : String; Y : Character) return String is
96 R : String (X'First .. X'Last + 1);
110 function Str_Equal (A, B : String) return Boolean is
112 if A'Length /= B'Length then
116 for J in A'Range loop
117 if A (J) /= B (J + (B'First - A'First)) then
130 procedure Str_Normalize (A : in out String) is
132 for J in A'Range loop
133 A (J) := Character'Last;
137 ------------------------
138 -- Wide_Str_Normalize --
139 ------------------------
141 procedure Wide_Str_Normalize (A : in out Wide_String) is
143 for J in A'Range loop
144 A (J) := Wide_Character'Last;
146 end Wide_Str_Normalize;
148 end System.String_Ops;