Having problems with boost 1.44 and serialisation on Linux, gcc 4.2.1
I am migrating from boost 1.43 to boost 1.44
and get compiler errors of the form:
In file included from ACore/src/TimeSeries.hpp:13,
from ACore/test/TestTimeSeries.cpp:16:
/var/tmp/ma0/boost/boost_1_44_0/boost/date_time/posix_time/time_serialize.hpp:
In function ?void boost::serialization::save(Archive&, const
boost::posix_time::time_duration&, unsigned int)?:
/var/tmp/ma0/boost/boost_1_44_0/boost/date_time/posix_time/time_serialize.hpp:42:
error: there are no arguments to ?make_nvp? that depend on a template
parameter, so a declaration of ?make_nvp? must be available
This is surprising as boost 1.44 release notes makes no mention of any
changes to boost serialisation ?
Can anyone help ?
Bryce Lelbach wrote:
Looks like a problem with date_time, not serialization. I know 1.44 builds on
GNU/Linux GCC 4.2.1 for me.
Can you make sure you have a file at
/var/tmp/ma0/boost/boost_1_44_0/boost/serialization/nvp.hpp? If you do have it,
could you show us?
I just downloaded boost 1.44 today:
The file: /var/tmp/ma0/boost/boost_1_44_0/boost/serialization/nvp.hpp exist.
This is what I have:
//===============================================================
#ifndef BOOST_SERIALIZATION_NVP_HPP
#define BOOST_SERIALIZATION_NVP_HPP
// MS compatible compilers support #pragma once
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
# pragma once
#endif
/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
// nvp.hpp: interface for serialization system.
// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
// Use, modification and distribution is subject to the Boost Software
// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
// See http://www.boost.org for updates, documentation, and revision history.
#include <utility>
#include
#include
// supress noise
#if BOOST_WORKAROUND(BOOST_MSVC, <= 1200)
# pragma warning (disable : 4786) // too long name, harmless warning
#endif
#include
#include
#include
#include
#include
#include
#include
#include
namespace boost {
namespace serialization {
template<class T>
struct nvp :
public std::pair,
public wrapper_traits
{
explicit nvp(const char * name_, T & t) :
// note: redundant cast works around borland issue
// note: added _ to suppress useless gcc warning
std::pair(name_, (T*)(& t))
{}
nvp(const nvp & rhs) :
// note: redundant cast works around borland issue
std::pair(rhs.first, (T*)rhs.second)
{}
const char * name() const {
return this->first;
}
T & value() const {
return *(this->second);
}
const T & const_value() const {
return *(this->second);
}
// True64 compiler complains with a warning about the use of
// the name "Archive" hiding some higher level usage. I'm sure this
// is an error but I want to accomodated as it generates a long warning
// listing and might be related to a lot of test failures.
// default treatment for name-value pairs. The name is
// just discarded and only the value is serialized.
template<class Archivex>
void save(
Archivex & ar,
const unsigned int /* file_version */
) const {
// CodeWarrior 8.x can't seem to resolve the << op for a rhs
of "const T *"
ar.operator<<(const_value());
}
template<class Archivex>
void load(
Archivex & ar,
const unsigned int /* file_version */
){
// CodeWarrior 8.x can't seem to resolve the >> op for a rhs
of "const T *"
ar.operator>>(value());
}
BOOST_SERIALIZATION_SPLIT_MEMBER()
};
template<class T>
inline
#ifndef BOOST_NO_FUNCTION_TEMPLATE_ORDERING
const
#endif
nvp<T> make_nvp(const char * name, T & t){
return nvp<T>(name, t);
}
// to maintain efficiency and portability, we want to assign
// specific serialization traits to all instances of this wrappers.
// we can't strait forward method below as it depends upon
// Partial Template Specialization and doing so would mean that wrappers
// wouldn't be treated the same on different platforms. This would
// break archive portability. Leave this here as reminder not to use it !!!
#if 0 // #ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
template <class T>
struct implementation_level
{
typedef mpl::integral_c_tag tag;
typedef mpl::int_ type;
BOOST_STATIC_CONSTANT(int, value = implementation_level::type::value);
};
// nvp objects are generally created on the stack and are never tracked
template<class T>
struct tracking_level
{
typedef mpl::integral_c_tag tag;
typedef mpl::int_ type;
BOOST_STATIC_CONSTANT(int, value = tracking_level::type::value);
};
#endif
} // seralization
} // boost
#include
#define BOOST_SERIALIZATION_NVP(name) \
boost::serialization::make_nvp(BOOST_PP_STRINGIZE(name), name)
/**/
#define BOOST_SERIALIZATION_BASE_OBJECT_NVP(name) \
boost::serialization::make_nvp( \
BOOST_PP_STRINGIZE(name), \
boost::serialization::base_object<name >(*this) \
)
/**/
#endif // BOOST_SERIALIZATION_NVP_HPP
// ========================================
Best regards,
Ta,
Avi
