stddefs.h included for definition of NULL

1 files changed, 2 insertions, 0 deletions

diff --git a/libopie2/opiecore/osmartpointer.h b/libopie2/opiecore/osmartpointer.h
index 8f9da7f..c7dc9d9 100644
--- a/libopie2/opiecore/osmartpointer.h
+++ b/libopie2/opiecore/osmartpointer.h
@@ -1,147 +1,149 @@
 // -*- Mode: C++; -*-
 /*
                             This file is part of the Opie Project
                             Copyright (C) 2004 Rajko Albrecht <alwin@handhelds.org>
                             Copyright (C) The Opie Team <opie-devel@handhelds.org>
              =.             
            .=l.
           .>+-=
 _;:,     .>    :=|.         This program is free software; you can
 .> <`_,   >  .   <=         redistribute it and/or  modify it under
 :`=1 )Y*s>-.--   :          the terms of the GNU Library General Public
 .="- .-=="i,     .._        License as published by the Free Software
 - .   .-<_>     .<>         Foundation; either version 2 of the License,
     ._= =}       :          or (at your option) any later version.
    .%`+i>       _;_.
    .i_,=:_.      -<s.       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
 ..}^=.=       =       ;     Library General Public License for more
 ++=   -.     .`     .:      details.
 :     =  ...= . :.=-
 -.   .:....=;==+<;          You should have received a copy of the GNU
  -_. . .   )=.  =           Library General Public License along with
    --        :-=`           this library; see the file COPYING.LIB.
                             If not, write to the Free Software Foundation,
                             Inc., 59 Temple Place - Suite 330,
                             Boston, MA 02111-1307, USA.
 */
 
 #ifndef _OSmartPointer_h
 #define _OSmartPointer_h
 
+#include <stddef.h>
+
 /*!
  * \file OSmartPointer.h
  * \brief smart pointer and reference counter
  * \author Rajko Albrecht
  *
  */
 
 namespace Opie {
 namespace Core {
 
 //! simple reference counter class
 class ORefCount {
 protected:
     //! reference count member
     long m_RefCount;
 public:
     //! first reference must be added after "new" via Pointer()
     ORefCount() : m_RefCount(0)
     {}
     virtual ~ORefCount() {}
     //! add a reference
     void Incr() {
         ++m_RefCount;
     }
     //! delete a reference
     void Decr() {
         --m_RefCount;
     }
     //! is it referenced
     bool Shared() { return (m_RefCount > 0); }
 };
 
 //! reference counting wrapper class
 template<class T> class OSmartPointer {
     //! pointer to object
     /*!
      * this object must contain Incr(), Decr() and Shared() 
      * methode as public members. The best way is, that it will be a child
      * class of RefCount
      */
     T *ptr;
 public:
     //! standart constructor
     OSmartPointer() { ptr = NULL; }
     //! standart destructor
     /*!
      * release the reference, if it were the last reference, destroys
      * ptr
      */
     ~OSmartPointer()
     {
         if (ptr){
             ptr->Decr();
             if (!ptr->Shared())
                 delete ptr;
         }
     }
     //! construction
     OSmartPointer(T* t) { if (ptr = t) ptr->Incr(); }
     //! Pointer copy
     OSmartPointer(const OSmartPointer<T>& p) 
     { if (ptr = p.ptr) ptr->Incr(); }
     //! pointer copy by assignment
     OSmartPointer<T>& operator= (const OSmartPointer<T>& p) 
     {
         // already same: nothing to do
         if (ptr == p.ptr) return *this;
         // decouple reference
         if (ptr) { ptr->Decr(); if (!ptr->Shared()) delete ptr; } 
         // establish new reference
         if (ptr = p.ptr) ptr->Incr();
         return *this;
     }
     OSmartPointer<T>& operator= (T*p)
     {
         if (ptr==p)return *this;
         if (ptr) {
             ptr->Decr();
             if (!ptr->Shared()) delete ptr;
         }
         if (ptr=p) ptr->Incr();
         return *this;
     }
 
     //! cast to conventional pointer
     operator T* () const { return ptr; }
     
     //! deref: fails for NULL pointer
     T& operator* () {return *ptr; }
     //! deref: fails for NULL pointer
     const T& operator* ()const {return *ptr; }
 
     //! deref with method call
     T* operator-> () {return ptr; }
     //! deref with const method call
     const T* operator-> ()const {return ptr; }
     
     //! supports "if (pointer)"
     operator bool () const { return (ptr != NULL); }
     //! "if (pointer)" as non const
     operator bool () { return ptr != NULL;}
     
     //! support if (!pointer)"
     bool operator! () const { return (ptr == NULL); }
     //! support if (!pointer)" as non const
     bool operator! () { return (ptr == NULL); }
 };
 
 }
 }
 
 #endif