1 ------------------------------------------------------------------------------
3 -- GNAT RUNTIME COMPONENTS --
5 -- G N A T . D E B U G _ U T I L I T I E S --
9 -- Copyright (C) 1995-1998 Ada Core Technologies, Inc. --
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 2, 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. See the GNU General Public License --
17 -- for more details. You should have received a copy of the GNU General --
18 -- Public License distributed with GNAT; see file COPYING. If not, write --
19 -- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
20 -- MA 02111-1307, USA. --
22 -- As a special exception, if other files instantiate generics from this --
23 -- unit, or you link this unit with other files to produce an executable, --
24 -- this unit does not by itself cause the resulting executable to be --
25 -- covered by the GNU General Public License. This exception does not --
26 -- however invalidate any other reasons why the executable file might be --
27 -- covered by the GNU Public License. --
29 -- GNAT is maintained by Ada Core Technologies Inc (http://www.gnat.com). --
31 ------------------------------------------------------------------------------
33 -- Debugging utilities
35 -- This package provides some useful utility subprograms for use in writing
36 -- routines that generate debugging output.
40 package GNAT
.Debug_Utilities
is
41 pragma Pure
(Debug_Utilities
);
43 function Image
(S
: String) return String;
44 -- Returns a string image of S, obtained by prepending and appending
45 -- quote (") characters and doubling any quote characters in the string.
46 -- The maximum length of the result is thus 2 ** S'Length + 2.
48 Address_Image_Length
: constant :=
49 13 + 10 * Boolean'Pos (Standard
'Address_Size > 32);
50 -- Length of string returned by Image function
52 function Image
(A
: System
.Address
) return String;
53 -- Returns a string of the form 16#xxxx_xxxx# for 32-bit addresses
54 -- or 16#xxxx_xxxx_xxxx_xxxx# for 64-bit addresses. Hex characters
57 function Value
(S
: String) return System
.Address
;
58 -- Given a valid integer literal in any form, including the form returned
59 -- by the Image function in this package, yields the corresponding address.
61 end GNAT
.Debug_Utilities
;