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debug.h

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//C-  -*- C++ -*-
//C- -------------------------------------------------------------------
//C- DjVuLibre-3.5
//C- Copyright (c) 2002  Leon Bottou and Yann Le Cun.
//C- Copyright (c) 2001  AT&T
//C-
//C- This software is subject to, and may be distributed under, the
//C- GNU General Public License, Version 2. The license should have
//C- accompanied the software or you may obtain a copy of the license
//C- from the Free Software Foundation at http://www.fsf.org .
//C-
//C- This program is distributed in the hope that it will be useful,
//C- but WITHOUT ANY WARRANTY; without even the implied warranty of
//C- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//C- GNU General Public License for more details.
//C- 
//C- DjVuLibre-3.5 is derived from the DjVu(r) Reference Library
//C- distributed by Lizardtech Software.  On July 19th 2002, Lizardtech 
//C- Software authorized us to replace the original DjVu(r) Reference 
//C- Library notice by the following text (see doc/lizard2002.djvu):
//C-
//C-  ------------------------------------------------------------------
//C- | DjVu (r) Reference Library (v. 3.5)
//C- | Copyright (c) 1999-2001 LizardTech, Inc. All Rights Reserved.
//C- | The DjVu Reference Library is protected by U.S. Pat. No.
//C- | 6,058,214 and patents pending.
//C- |
//C- | This software is subject to, and may be distributed under, the
//C- | GNU General Public License, Version 2. The license should have
//C- | accompanied the software or you may obtain a copy of the license
//C- | from the Free Software Foundation at http://www.fsf.org .
//C- |
//C- | The computer code originally released by LizardTech under this
//C- | license and unmodified by other parties is deemed "the LIZARDTECH
//C- | ORIGINAL CODE."  Subject to any third party intellectual property
//C- | claims, LizardTech grants recipient a worldwide, royalty-free, 
//C- | non-exclusive license to make, use, sell, or otherwise dispose of 
//C- | the LIZARDTECH ORIGINAL CODE or of programs derived from the 
//C- | LIZARDTECH ORIGINAL CODE in compliance with the terms of the GNU 
//C- | General Public License.   This grant only confers the right to 
//C- | infringe patent claims underlying the LIZARDTECH ORIGINAL CODE to 
//C- | the extent such infringement is reasonably necessary to enable 
//C- | recipient to make, have made, practice, sell, or otherwise dispose 
//C- | of the LIZARDTECH ORIGINAL CODE (or portions thereof) and not to 
//C- | any greater extent that may be necessary to utilize further 
//C- | modifications or combinations.
//C- |
//C- | The LIZARDTECH ORIGINAL CODE is provided "AS IS" WITHOUT WARRANTY
//C- | OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
//C- | TO ANY WARRANTY OF NON-INFRINGEMENT, OR ANY IMPLIED WARRANTY OF
//C- | MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
//C- +------------------------------------------------------------------
// 
// $Id: debug.h,v 1.12 2005/05/27 14:26:01 leonb Exp $
// $Name: release_3_5_15 $

#ifndef _DEBUG_H_
#define _DEBUG_H_

#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#if NEED_GNUG_PRAGMAS
# pragma interface
#endif

#include <stdio.h>
#ifdef WIN32
# include <atlbase.h> // USES_CONVERSION, A2CT macro
# include <windows.h> // OutputDebugString
#endif 


#ifdef HAVE_NAMESPACES
namespace DJVU {
# ifdef NOT_DEFINED // Just to fool emacs c++ mode
}
# endif
#endif


#ifndef DEBUGLVL
# ifdef NDEBUG
#  define DEBUGLVL 0
# endif 
#endif
#ifndef DEBUGLVL
# ifdef NO_DEBUG
#  define DEBUGLVL 0
# endif 
#endif
#ifndef DEBUGLVL
# ifdef RUNTIME_DEBUG_ONLY
#  define DEBUGLVL 1
# endif 
#endif
#ifndef DEBUGLVL
# ifdef _DEBUG
#  define DEBUGLVL 1
# endif 
#endif
#ifndef DEBUGLVL
#  define DEBUGLVL 0
#endif

#if DEBUGLVL <= 0

# ifndef NO_DEBUG
#  define NO_DEBUG
# endif
# ifndef NDEBUG
#  define NDEBUG
# endif
# ifdef _DEBUG
#  undef _DEBUG
# endif

# define DEBUG_MAKE_INDENT(x)
# define DEBUG_SET_LEVEL(level)
# define DEBUG_MSG_LVL(level,x)
# define DEBUG_MSGN_LVL(level,x)

#else

# ifdef NO_DEBUG
#  undef NO_DEBUG
# endif
# ifdef NDEBUG
#  undef NDEBUG
# endif
# ifndef _DEBUG
#  define _DEBUG
# endif

class GUTF8String;

// ------------ SUPPORT

class DjVuDebug // DJVU_CLASS
{
private:
  int    id;
  int    block;
  int    indent;
  void   format(const char *fmt, ... );
public:
  // construction
  DjVuDebug();
  ~DjVuDebug();
  // access
  static void   set_debug_level(int lvl);
  static void   set_debug_file(FILE * file);
  void          modify_indent(int rindent);
  static DjVuDebug& lock(int lvl, int noindent);
  void          unlock();
  // printing
  DjVuDebug &   operator<<(bool b);
  DjVuDebug &   operator<<(char c);
  DjVuDebug &   operator<<(unsigned char c);
  DjVuDebug &   operator<<(int i);
  DjVuDebug &   operator<<(unsigned int i);
  DjVuDebug &   operator<<(short int i);
  DjVuDebug &   operator<<(unsigned short int i);
  DjVuDebug &   operator<<(long i);
  DjVuDebug &   operator<<(unsigned long i);
  DjVuDebug &   operator<<(const char * const ptr);
  DjVuDebug &   operator<<(const unsigned char * const ptr);
  DjVuDebug&    operator<<(const GUTF8String &ptr);
  DjVuDebug &   operator<<(float f);
  DjVuDebug &   operator<<(double d);
  DjVuDebug &   operator<<(const void * const p);
};

class DjVuDebugIndent // DJVU_CLASS
{
private:
  int inc;
public:
  DjVuDebugIndent(int inc=2);
  ~DjVuDebugIndent();
//#define DEBUG_MAKE_INDENT_2(x, y) DjVuDebugIndent debug_indent ## y (x)
//#define DEBUG_MAKE_INDENT_1(x, y) DEBUG_MAKE_INDENT_2(x, y)
#define DEBUG_MAKE_INDENT_1(x, y) DjVuDebugIndent debug_indent ## y (x)
};

// ------------ MAIN MACROS

# define DEBUG_MAKE_INDENT(x)     DEBUG_MAKE_INDENT_1(x, __LINE__)
# define DEBUG_SET_LEVEL(level)   DjVuDebug::set_debug_level(level)
# define DEBUG_MSG_LVL(level,x)   { ( DjVuDebug::lock(level,0) << x ).unlock(); }
# define DEBUG_MSGN_LVL(level,x)  { ( DjVuDebug::lock(level,1) << x ).unlock(); }
# define DEBUG_MSGF_LVL(level,x)  { ( DjVuDebug::lock(level,1) << x ).unlock(); }

#endif


// ------------ EAF MACROS

#if ( DEBUGLVL >= 1 )

# define DEBUG1_MSG(x)  DEBUG_MSG_LVL(1,x)
# define DEBUG1_MSGF(x) DEBUG_MSGF_LVL(1,x)
#else
# define DEBUG1_MSG(x)
# define DEBUG1_MSGF(x)
#endif
#if ( DEBUGLVL >= 2 )

# define DEBUG2_MSG(x)  DEBUG_MSG_LVL(2,x)
# define DEBUG2_MSGF(x) DEBUG_MSGF_LVL(2,x)
#else
# define DEBUG2_MSG(x)
# define DEBUG2_MSGF(x)
#endif
#if ( DEBUGLVL >= 3 )

# define DEBUG3_MSG(x)  DEBUG_MSG_LVL(3,x)
# define DEBUG3_MSGF(x) DEBUG_MSGF_LVL(3,x)
#else
# define DEBUG3_MSG(x)
# define DEBUG3_MSGF(x)
#endif
#if ( DEBUGLVL >= 4 )

# define DEBUG4_MSG(x)  DEBUG_MSG_LVL(4,x)
# define DEBUG4_MSGF(x) DEBUG_MSGF_LVL(4,x)
#else
# define DEBUG4_MSG(x)
# define DEBUG4_MSGF(x)
#endif

#define DEBUG_RUNTIME_SET_LEVEL(level) DEBUG_SET_LEVEL(level)

#define DEBUG_MSG(x)  DEBUG1_MSG(x)

#define DEBUG_MSGF(x) DEBUG1_MSGF(x)

#define DEBUG_MSGN(x) DEBUG_MSG(x<<'\n')


// ------------ THE END

#ifdef HAVE_NAMESPACES
}
# ifndef NOT_USING_DJVU_NAMESPACE
using namespace DJVU;
# endif
#endif

#endif // DEBUG_H

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