On Sun, 2011-01-23 at 13:35 +0530, Rohit Rai wrote:
> I am using Quantlib 0.9.7 for my Application.
>
> And i set the evaluation date to 31 December 2008 for Fixed Rate Bond.
> When i print the settlement date , for Window the Settlement Date is
> fine ..which is January 1st, 2009
> But for AIX 64 bit application, the Settlement Date is bit
> weird...which comes out to be January 24th, 2011.
> I guess , its pointing to the current date rather than taking the date
> which i have set to i.e. 31-December-2008.
It looks like a singleton not working.
May you try replacing ql/patterns/singleton.hpp with the one I'm
attaching, recompile and try again?
Let me know if that works, so we can add the patch to next release.
Also, is there any compiler define (to be used in a #ifdef) that lets
one detect that one's on AIX?
Thanks,
Luigi
--
Within C++, there is a much smaller and cleaner language struggling to
get out.
-- Bjarne Stroustrup
/* -*- mode: c++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
Copyright (C) 2004, 2005, 2007 StatPro Italia srl
This file is part of QuantLib, a free-software/open-source library
for financial quantitative analysts and developers -
http://quantlib.org/ QuantLib is free software: you can redistribute it and/or modify it
under the terms of the QuantLib license. You should have received a
copy of the license along with this program; if not, please email
<quantlib-dev@lists.sf.net>. The license is also available online at
<
http://quantlib.org/license.shtml>.
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 license for more details.
*/
/*! \file singleton.hpp
\brief basic support for the singleton pattern
*/
#ifndef quantlib_singleton_hpp
#define quantlib_singleton_hpp
#include <ql/types.hpp>
#include <boost/shared_ptr.hpp>
#include <boost/noncopyable.hpp>
#include <map>
namespace QuantLib {
#if defined(QL_ENABLE_SESSIONS)
// definition must be provided by the user
Integer sessionId();
#endif
// this is required on VC++ (with a slightly different syntax depending
// on the compiler version) when CLR support is enabled
#if defined(QL_PATCH_MSVC71)
#pragma unmanaged
#elif defined(QL_PATCH_MSVC)
#pragma managed(push, off)
#endif
//! Basic support for the singleton pattern.
/*! The typical use of this class is:
\code
class Foo : public Singleton<Foo> {
friend class Singleton<Foo>;
private:
Foo() {}
public:
...
};
\endcode
which, albeit sub-optimal, frees one from the concerns of
creating and managing the unique instance and can serve later
as a single implemementation point should synchronization
features be added.
\ingroup patterns
*/
template <class T>
class Singleton : private boost::noncopyable {
public:
//! access to the unique instance
static T& instance();
protected:
Singleton() {}
private:
static std::map<Integer, boost::shared_ptr<T> > instances_;
};
// template definitions
template <class T>
std::map<Integer, boost::shared_ptr<T> > Singleton<T>::instances_;
template <class T>
T& Singleton<T>::instance() {
#if defined(QL_ENABLE_SESSIONS)
Integer id = sessionId();
#else
Integer id = 0;
#endif
boost::shared_ptr<T>& instance = instances_[id];
if (!instance)
instance = boost::shared_ptr<T>(new T);
return *instance;
}
// reverts the change above
#if defined(QL_PATCH_MSVC71)
#pragma managed
#elif defined(QL_PATCH_MSVC)
#pragma managed(pop)
#endif
}
#endif
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