------------------------------------------------------------------------------ -- -- -- GNAT RUN-TIME COMPONENTS -- -- -- -- G N A T . D E B U G _ U T I L I T I E S -- -- -- -- S p e c -- -- -- -- Copyright (C) 1995-2005, AdaCore -- -- -- -- GNAT is free software; you can redistribute it and/or modify it under -- -- terms of the GNU General Public License as published by the Free Soft- -- -- ware Foundation; either version 2, or (at your option) any later ver- -- -- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- -- for more details. You should have received a copy of the GNU General -- -- Public License distributed with GNAT; see file COPYING. If not, write -- -- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, -- -- Boston, MA 02110-1301, USA. -- -- -- -- As a special exception, if other files instantiate generics from this -- -- unit, or you link this unit with other files to produce an executable, -- -- this unit does not by itself cause the resulting executable to be -- -- covered by the GNU General Public License. This exception does not -- -- however invalidate any other reasons why the executable file might be -- -- covered by the GNU Public License. -- -- -- -- GNAT was originally developed by the GNAT team at New York University. -- -- Extensive contributions were provided by Ada Core Technologies Inc. -- -- -- ------------------------------------------------------------------------------ -- Debugging utilities -- This package provides some useful utility subprograms for use in writing -- routines that generate debugging output. with System; package GNAT.Debug_Utilities is pragma Pure; Address_64 : constant Boolean := Standard'Address_Size = 64; -- Set true if 64 bit addresses (assumes only 32 and 64 are possible) Address_Image_Length : constant := 13 + 10 * Boolean'Pos (Address_64); -- Length of string returned by Image function for an address subtype Image_String is String (1 .. Address_Image_Length); -- Subtype returned by Image function for an address Address_Image_C_Length : constant := 10 + 8 * Boolean'Pos (Address_64); -- Length of string returned by Image_C function subtype Image_C_String is String (1 .. Address_Image_C_Length); -- Subtype returned by Image_C function function Image (S : String) return String; -- Returns a string image of S, obtained by prepending and appending -- quote (") characters and doubling any quote characters in the string. -- The maximum length of the result is thus 2 ** S'Length + 2. function Image (A : System.Address) return Image_String; -- Returns a string of the form 16#hhhh_hhhh# for 32-bit addresses -- or 16#hhhh_hhhh_hhhh_hhhh# for 64-bit addresses. Hex characters -- are in upper case. function Image_C (A : System.Address) return Image_C_String; -- Returns a string of the form 0xhhhhhhhh for 32 bit addresses or -- 0xhhhhhhhhhhhhhhhh for 64-bit addresses. Hex characters are in -- upper case. function Value (S : String) return System.Address; -- Given a valid integer literal in any form, including the form returned -- by the Image function in this package, yields the corresponding address. -- Note that this routine will handle any Ada integer format, and will -- also handle hex constants in C format (0xhh..hhh). Constraint_Error -- may be raised for obviously incorrect data, but the routine is fairly -- permissive, and in particular, all underscores in whatever position -- are simply ignored completely. end GNAT.Debug_Utilities;