Re: [Quantlib-dev] [QuantLib-svn] SF.net SVN: quantlib:[17110] trunk/QuantLib/ql/math/interpolations/ mixedinterpolation.hpp

[Ferdinando A. <na...@am...>]

On Wed, Feb 17, 2010 at 10:36 AM,  <lba...@us...> wrote:
> I have no idea what VC9 complains about, but the 'this->' is
> required by the C++ standard.

see Visual Studio Help below

ciao -- Nando

================================================

Error Message
'this' : used in base member initializer list


The this pointer is valid only within nonstatic member functions. It
cannot be used in the initializer list for a base class.

The base-class constructors and class member constructors are called
before this constructor. In effect, you've passed a pointer to an
unconstructed object to another constructor. If those other
constructors access any members or call member functions on this, the
result will be undefined. You should not use the this pointer until
all construction has completed.

This is a level-1 warning under Microsoft extensions (/Ze) and a
level-4 warning otherwise.

The following sample generates C4355:


// C4355.cpp
// compile with: /W1 /c
#include <tchar.h>

class CDerived;
class CBase {
public:
   CBase(CDerived *derived): m_pDerived(derived) {};
   ~CBase();
   virtual void function() = 0;

   CDerived * m_pDerived;
};

class CDerived : public CBase {
public:
   CDerived() : CBase(this) {};   // C4355 "this" used in derived c'tor
   virtual void function() {};
};

CBase::~CBase() {
   m_pDerived -> function();
}

int main() {
   CDerived myDerived;
}