/usr/include/claw/logger.hpp is in libclaw-logger-dev 1.7.4-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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CLAW - a C++ Library Absolutely Wonderful
CLAW is a free library without any particular aim but being useful to
anyone.
Copyright (C) 2005-2011 Julien Jorge
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
contact: julien.jorge@gamned.org
*/
/**
* \file logger.hpp
* \brief Some basic classes for logging.
* \author Julien Jorge
*/
#ifndef __CLAW_LOGGER_HPP__
#define __CLAW_LOGGER_HPP__
#include <ostream>
#include <list>
#include <string>
#include <claw/log_level.hpp>
#include <claw/log_stream.hpp>
#ifndef CLAW_LOGGER_EXPORT
# ifdef CLAW_LOGGER_NO_EXPORT
# define CLAW_LOGGER_EXPORT
# else
# ifdef _WIN32
# ifdef claw_logger_EXPORTS
# define CLAW_LOGGER_EXPORT __declspec(dllexport)
# else
# define CLAW_LOGGER_EXPORT __declspec(dllimport)
# endif // def claw_logger_EXPORTS
# else // def _WIN32
# define CLAW_LOGGER_EXPORT
# endif // def _WIN32
# endif // def CLAW_LOGGER_NO_EXPORT
#endif // ndef CLAW_LOGGER_EXPORT
namespace claw
{
/**
* \brief A class implementing a logging system.
*
* Messages are sent to the log system. If the importance (level) of a message
* is lower or equal to a given threshold, the message is printed. Otherwise,
* it is ignored.
*
* Message printing is managed by log_stream classes. The logger_system can
* contain several log_stream. None checking is done when adding a log_stream
* to see if it is already in the system.
*
* \author Julien Jorge
*/
class log_system
{
public:
typedef log_stream stream_type;
typedef std::list<stream_type*> stream_list_type;
public:
CLAW_LOGGER_EXPORT log_system();
CLAW_LOGGER_EXPORT ~log_system();
CLAW_LOGGER_EXPORT void clear();
CLAW_LOGGER_EXPORT void merge( stream_type* s );
CLAW_LOGGER_EXPORT void remove( const stream_type* s );
CLAW_LOGGER_EXPORT void set( stream_type* s );
CLAW_LOGGER_EXPORT void set_level( int lvl );
CLAW_LOGGER_EXPORT void set_level( const log_level& lvl );
CLAW_LOGGER_EXPORT void flush();
template<typename T>
log_system& operator<<( const T& that );
CLAW_LOGGER_EXPORT log_system& operator<<( const log_level& that );
CLAW_LOGGER_EXPORT log_system& operator<<( log_system& (*pf)(log_system&) );
private:
/** \brief The level of log. Messages are ignored if their level is greater
than this level. */
int m_log_level;
/** \brief The current message level, for operator << */
int m_message_level;
/** \brief The streams in which we write de log informations. */
stream_list_type m_stream;
}; // class log_system
CLAW_LOGGER_EXPORT extern log_system logger;
CLAW_LOGGER_EXPORT log_system& lendl(log_system& log);
} // namespace claw
namespace std
{
CLAW_LOGGER_EXPORT claw::log_system& endl( claw::log_system& log );
} // namespace std
// template methods
#include <claw/impl/logger.tpp>
#endif // __CLAW_LOGGER_HPP__
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