Initial revision. Contributed by Bernie Bright.
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90
auto_ptr.hxx
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90
auto_ptr.hxx
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/**************************************************************************
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* auto_ptr.hxx -- A simple auto_ptr definition.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* $Id$
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* (Log is kept at end of this file)
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**************************************************************************/
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#ifndef _AUTO_PTR_HXX
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#define _AUTO_PTR_HXX
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#include "fg_stl_config.h"
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//-----------------------------------------------------------------------------
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//
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// auto_ptr is initialised with a pointer obtained via new and deletes that
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// object when it itself is destroyed (such as when leaving block scope).
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// auto_ptr can be used in any way that a normal pointer can be.
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//
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// This class is only required when the STL doesn't supply one.
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//
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template <class X> class auto_ptr {
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private:
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X* ptr;
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mutable bool owns;
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public:
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typedef X element_type;
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explicit auto_ptr(X* p = 0) : ptr(p), owns(p) {}
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auto_ptr(const auto_ptr& a) : ptr(a.ptr), owns(a.owns) {
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a.owns = 0;
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}
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template <class T> auto_ptr(const auto_ptr<T>& a)
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: ptr(a.ptr), owns(a.owns) {
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a.owns = 0;
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}
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auto_ptr& operator = (const auto_ptr& a) {
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if (&a != this) {
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if (owns)
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delete ptr;
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owns = a.owns;
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ptr = a.ptr;
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a.owns = 0;
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}
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}
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template <class T> auto_ptr& operator = (const auto_ptr<T>& a) {
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if (&a != this) {
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if (owns)
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delete ptr;
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owns = a.owns;
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ptr = a.ptr;
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a.owns = 0;
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}
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}
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~auto_ptr() {
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if (owns)
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delete ptr;
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}
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X& operator*() const { return *ptr; }
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X* operator->() const { return ptr; }
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X* get() const { return ptr; }
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X* release() const { owns = false; return ptr; }
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};
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#endif /* _AUTO_PTR_HXX */
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// $Log$
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// Revision 1.1 1998/08/30 14:12:45 curt
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// Initial revision. Contributed by Bernie Bright.
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//
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178
fg_callback.hxx
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fg_callback.hxx
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/**************************************************************************
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* fg_callback.hxx -- Wrapper classes to treat function and method pointers
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* as objects.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* $Id$
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* (Log is kept at end of this file)
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**************************************************************************/
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#ifndef _FG_CALLBACK_HXX
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#define _FG_CALLBACK_HXX
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//-----------------------------------------------------------------------------
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//
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// Abstract base class for all FlightGear callbacks.
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//
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class fgCallback
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{
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public:
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virtual ~fgCallback() {}
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virtual fgCallback* clone() const = 0;
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virtual void* call( void** ) = 0;
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size_t params() const { return n_params; }
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protected:
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fgCallback( size_t params )
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: n_params(params) {}
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protected:
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// The number of parameters to pass to the callback routine.
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size_t n_params;
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private:
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};
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//-----------------------------------------------------------------------------
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//
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// Callback for invoking a file scope function.
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//
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class fgFunctionCallback : public fgCallback
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{
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public:
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// Pointer to function taking no arguments and returning void.
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typedef void (*Proc0v)();
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fgFunctionCallback( Proc0v p );
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virtual fgCallback* clone() const;
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private:
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void* call( void** in );
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void* call0v( void** );
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private:
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// Not defined.
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fgFunctionCallback();
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private:
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typedef void* (fgFunctionCallback::*DoPtr)( void** );
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DoPtr doPtr;
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Proc0v proc0v;
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};
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inline
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fgFunctionCallback::fgFunctionCallback( Proc0v p )
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: fgCallback(0),
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doPtr(&fgFunctionCallback::call0v),
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proc0v(p)
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{
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// empty
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}
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inline fgCallback*
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fgFunctionCallback::clone() const
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{
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return new fgFunctionCallback( *this );
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}
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inline void*
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fgFunctionCallback::call( void** in )
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{
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return (this->*doPtr)( in );
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}
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inline void*
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fgFunctionCallback::call0v( void** )
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{
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(*proc0v)();
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return (void*) NULL;
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}
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//-----------------------------------------------------------------------------
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//
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// Callback for invoking an instance method.
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//
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template< class T >
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class fgMethodCallback : public fgCallback
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{
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public:
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// Pointer to method taking no arguments and returning void.
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typedef void (T::*Method0v)();
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//
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fgMethodCallback( T* o, Method0v m );
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//
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fgCallback* clone() const;
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private:
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//
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void* call( void** in );
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//
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void* call0v( void** );
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private:
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// Not defined.
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fgMethodCallback();
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private:
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T* object;
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Method0v method0v;
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typedef void * (fgMethodCallback::*DoPtr)( void ** );
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DoPtr doPtr;
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};
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template< class T > inline
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fgMethodCallback<T>::fgMethodCallback( T* o, Method0v m )
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: fgCallback(0),
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object(o),
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method0v(m),
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doPtr(&fgMethodCallback<T>::call0v)
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{
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}
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template< class T > inline fgCallback*
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fgMethodCallback<T>::clone() const
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{
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return new fgMethodCallback( *this );
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}
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template< class T > inline void*
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fgMethodCallback<T>::call( void** in )
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{
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return (this->*doPtr)( in );
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}
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template< class T > inline void*
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fgMethodCallback<T>::call0v( void** )
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{
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(object->*method0v)();
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return (void*) NULL;
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}
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#endif // _FG_CALLBACK_HXX
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// $Log$
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// Revision 1.1 1998/08/30 14:13:48 curt
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// Initial revision. Contributed by Bernie Bright.
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//
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90
fg_stl_config.h
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fg_stl_config.h
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/**************************************************************************
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* fg_stl_config.hxx -- STL Portability Macros
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* $Id$
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* (Log is kept at end of this file)
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**************************************************************************/
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#ifndef _FG_STL_CONFIG_H
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#define _FG_STL_CONFIG_H
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// What this file does.
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// (1) Defines macros for some STL includes which may be affected
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// by file name length limitations.
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// (2) Defines macros for some features not supported by all C++ compilers.
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// (3) Defines 'explicit' as a null macro if the compiler doesn't support
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// the explicit keyword.
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// (4) Defines 'typename' as a null macro if the compiler doesn't support
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// the typename keyword.
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// (5) Defines bool, true and false if the compiler doesn't do so.
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// (6) Defines _FG_EXPLICIT_FUNCTION_TMPL_ARGS if the compiler
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// supports calling a function template by providing its template
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// arguments explicitly.
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// (7) Defines _FG_NEED_AUTO_PTR if STL doesn't provide auto_ptr<>.
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#ifdef __GNUC__
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# if __GNUC__ == 2 && __GNUC_MINOR__ >= 8
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// g++-2.8.x and egcs-1.0.x
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# define STL_ALGORITHM <algorithm>
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# define STL_FUNCTIONAL <functional>
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# define STL_IOMANIP <iomanip>
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# define STL_IOSTREAM <iostream>
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# define STL_STDEXCEPT <stdexcept>
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# define STL_STRING <string>
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# define STL_STRSTREAM <strstream>
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# define _FG_EXPLICIT_FUNCTION_TMPL_ARGS
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# define _FG_NEED_AUTO_PTR
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# else
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# error Old GNU compilers not yet supported
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# endif
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#endif
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// Microsoft compilers.
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#ifdef _MSC_VER
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# if _MSC_VER < 1100
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# define _FG_NEED_EXPLICIT
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# endif
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#endif
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#ifdef _FG_NEED_EXPLICIT
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# define explicit
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#endif
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#ifdef _FG_NEED_TYPENAME
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# define typename
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#endif
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#ifdef _FG_NEED_BOOL
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typedef int bool;
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# define true 1
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# define false 0
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#endif
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#ifdef _FG_EXPLICIT_FUNCTION_TMPL_ARGS
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# define _FG_NULL_TMPL_ARGS <>
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#else
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# define _FG_NULL_TMPL_ARGS
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#endif
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#endif // _FG_STL_CONFIG_H
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// $Log$
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// Revision 1.1 1998/08/30 14:13:49 curt
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// Initial revision. Contributed by Bernie Bright.
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//
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Reference in a new issue