|
111
|
1 ------------------------------------------------------------------------------
|
|
|
2 -- --
|
|
|
3 -- GNAT RUN-TIME LIBRARY COMPONENTS --
|
|
|
4 -- --
|
|
|
5 -- S Y S T E M . S T R I N G _ C O M P A R E --
|
|
|
6 -- --
|
|
|
7 -- S p e c --
|
|
|
8 -- --
|
|
131
|
9 -- Copyright (C) 2002-2018, Free Software Foundation, Inc. --
|
|
111
|
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 -- This package contains functions for runtime comparisons on strings
|
|
|
33
|
|
|
34 pragma Compiler_Unit_Warning;
|
|
|
35
|
|
|
36 package System.String_Compare is
|
|
|
37
|
|
|
38 function Str_Compare
|
|
|
39 (Left : System.Address;
|
|
|
40 Right : System.Address;
|
|
|
41 Left_Len : Natural;
|
|
|
42 Right_Len : Natural) return Integer;
|
|
|
43 -- Compare the string starting at address Left of length Left_Len
|
|
|
44 -- with the string starting at address Right of length Right_Len.
|
|
|
45 -- The comparison is in the normal Ada semantic sense of string
|
|
|
46 -- comparison. The result is -1,0,+1 for Left<Right, Left=Right,
|
|
|
47 -- Left>Right respectively. This function works with 4 byte words
|
|
|
48 -- if the operands are aligned on 4-byte boundaries and long enough.
|
|
|
49
|
|
|
50 function Str_Compare_Bytes
|
|
|
51 (Left : System.Address;
|
|
|
52 Right : System.Address;
|
|
|
53 Left_Len : Natural;
|
|
|
54 Right_Len : Natural) return Integer;
|
|
|
55 -- Same functionality as Str_Compare but always proceeds by bytes.
|
|
|
56 -- Used when the caller knows that the operands are unaligned, or
|
|
|
57 -- short enough that it makes no sense to go by words.
|
|
|
58
|
|
|
59 end System.String_Compare;
|
