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101 lines
2.5 KiB
C++
101 lines
2.5 KiB
C++
// Ryzom - MMORPG Framework <http://dev.ryzom.com/projects/ryzom/>
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// Copyright (C) 2010 Winch Gate Property Limited
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as
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// published by the Free Software Foundation, either version 3 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,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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#ifndef RYAI_STATIC_VECTOR_H
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#define RYAI_STATIC_VECTOR_H
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/*
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This class implements an array of entities of any derived class of a given base class
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The entities are allocated in a single memory block.
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*/
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// not the way to use templates .. ( bad generalisation implementation ).
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/*
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template <class BaseClass>
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class StaticVector
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{
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public:
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// ctor & dtor --------------------------------------------------
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StaticVector(): _data(0), _count(0), _size(0) {}
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~StaticVector() { if (_data) delete[] _data; }
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// allocate memory and initialise objects -----------------------
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template <class DerivedClass>
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void init(uint count,DerivedClass *&dc)
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{
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nlassert(_data==NULL);
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_count=count;
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_data=(BaseClass*)malloc(count*sizeof(DerivedClass));
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_size=sizeof(DerivedClass);
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nlassert(_data!=NULL);
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for (uint i=0;i<count;++i)
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{
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// std::construct(&((DerivedClass*)_data)[i], DerivedClass());
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#undef new
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new (&((DerivedClass*)_data)[i]) DerivedClass();
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#define new NL_NEW
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}
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}
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// destroy array of objects and free memory ---------------------
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void release()
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{
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_count=0;
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_size=0;
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if (_data)
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delete[] _data;
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}
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// return number of objects in array or 0 if not initialised ----
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uint count() const
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{
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return _count;
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}
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// [] operator for accessing data -------------------------------
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BaseClass &operator[](uint index) const
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{
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nlassert( index < _count );
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return *(BaseClass *)((char *)_data+index*_size);
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}
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void setElm(BaseClass *obj, uint index)
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{
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nlassert( index < _count );
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// BaseClass *ptr = (BaseClass *) ((char *)_data+index*_size);
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// memcpy( ptr, obj, _size );
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( *(BaseClass *)((char *)_data+index*_size) ) = *obj;
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}
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private:
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BaseClass* _data;
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uint _count;
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uint _size;
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};
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*/
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#endif
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