File : s-conca3.ads
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 -- S p e c --
8 -- --
9 -- Copyright (C) 2008-2013, 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 -- --
19 -- --
20 -- --
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 -- This package contains a procedure for runtime concatenation of three string
33 -- operands. It is used when we want to save space in the generated code.
34
35 pragma Compiler_Unit_Warning;
36
37 package System.Concat_3 is
38
39 procedure Str_Concat_3 (R : out String; S1, S2, S3 : String);
40 -- Performs the operation R := S1 & S2 & S3. The bounds of R are known to
41 -- be correct (usually set by a call to the Str_Concat_Bounds_3 procedure
42 -- below), so no bounds checks are required, and it is known that none of
43 -- the input operands overlaps R. No assumptions can be made about the
44 -- lower bounds of any of the operands.
45
46 procedure Str_Concat_Bounds_3
47 (Lo, Hi : out Natural;
48 S1, S2, S3 : String);
49 -- Assigns to Lo..Hi the bounds of the result of concatenating the three
50 -- given strings, following the rules in the RM regarding null operands.
51
52 end System.Concat_3;