74 lines
1.7 KiB
C++
74 lines
1.7 KiB
C++
/* -*- Mode:C++; c-basic-offset:8; tab-width:8; indent-tabs-mode:t -*- */
|
|
/*
|
|
* Copyright (c) 2006 INRIA
|
|
* All rights reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation;
|
|
*
|
|
* This program 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
* Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
|
|
*/
|
|
#ifndef TRACE_STREAM_H
|
|
#define TRACE_STREAM_H
|
|
|
|
#include <ostream>
|
|
|
|
namespace yans {
|
|
|
|
/**
|
|
* \brief log arbitrary data to std::ostreams
|
|
*
|
|
* Whenever operator << is invoked on this class,
|
|
* it is forwarded to the stored std::ostream output
|
|
* stream (if there is one).
|
|
*/
|
|
class TraceStream {
|
|
public:
|
|
TraceStream ()
|
|
: m_os (0) {}
|
|
template <typename T>
|
|
TraceStream &operator << (T const&v) {
|
|
if (m_os != 0) {
|
|
(*m_os) << v;
|
|
}
|
|
return *this;
|
|
}
|
|
template <typename T>
|
|
TraceStream &operator << (T &v) {
|
|
if (m_os != 0) {
|
|
(*m_os) << v;
|
|
}
|
|
return *this;
|
|
}
|
|
TraceStream &operator << (std::ostream &(*v) (std::ostream &)) {
|
|
if (m_os != 0) {
|
|
(*m_os) << v;
|
|
}
|
|
return *this;
|
|
}
|
|
|
|
/**
|
|
* \param os the output stream to store
|
|
*/
|
|
void set_stream (std::ostream * os) {
|
|
m_os = os;
|
|
}
|
|
private:
|
|
std::ostream *m_os;
|
|
};
|
|
|
|
}; // namespace yans
|
|
|
|
|
|
#endif /* TRACE_STREAM_H */
|