307 lines
7.7 KiB
C++
307 lines
7.7 KiB
C++
/*
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* This file is a part of EZC -- Easy templating in C++ library
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* and is distributed under the BSD 3-Clause licence.
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* Author: Tomasz Sowa <t.sowa@ttmath.org>
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*/
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/*
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* Copyright (c) 2015-2021, Tomasz Sowa
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* * Neither the name Tomasz Sowa nor the names of contributors to this
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* project may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef headerfile_ezc_objects
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#define headerfile_ezc_objects
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#include <vector>
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#include <string>
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#include "utf8/utf8.h"
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namespace Ezc
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{
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template<class StreamType>
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class BaseObj
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{
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public:
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virtual ~BaseObj() {}
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/*
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*
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*/
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virtual std::wstring & GetObjectName() = 0;
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/*
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*
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*/
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virtual int FindFun(const std::wstring & fun_name) = 0;
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/*
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*
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*/
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virtual void CallFun(int fun_index, Env<StreamType> &) = 0;
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/*
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*
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*/
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virtual void ClearFunctions() = 0;
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/*
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*
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*/
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virtual size_t FunctionsSize() = 0;
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/*
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*
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*/
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virtual void AddFunctions() {};
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};
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#define EZC_DEFINE_OBJECT_METHODS(classname) \
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\
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\
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protected: \
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\
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struct EzcTemplateMethod \
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{ \
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std::wstring fun_name; \
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void (classname::*fun)(Info &); \
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}; \
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\
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public: \
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\
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virtual std::wstring & GetObjectName() \
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{ \
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return ezc_object_name; \
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} \
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\
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virtual void CallFun(int fun_index, Info & info) \
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{ \
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if( fun_index >=0 && (size_t)fun_index < ezc_template_method_tab.size() ) \
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{ \
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(this->*(ezc_template_method_tab[fun_index].fun))(info); \
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} \
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} \
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\
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virtual int FindFun(const std::wstring & fun_name) \
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{ \
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for(size_t i=0 ; i<ezc_template_method_tab.size() ; ++i) \
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{ \
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if( ezc_template_method_tab[i].fun_name == fun_name ) \
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{ \
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return (int)i; \
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} \
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} \
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\
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return -1; \
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} \
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\
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\
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protected: \
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\
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virtual void ClearFunctions() \
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{ \
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ezc_template_method_tab.clear(); \
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} \
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\
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virtual size_t FunctionsSize() \
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{ \
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return ezc_template_method_tab.size(); \
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} \
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\
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void Insert(const char * name, void (classname::*fun)(Info &)) \
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{ \
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EzcTemplateMethod item; \
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\
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pt::utf8_to_wide(name, item.fun_name); \
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item.fun = fun; \
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\
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ezc_template_method_tab.push_back(item); \
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} \
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\
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void Insert(const std::string & name, void (classname::*fun)(Info &)) \
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{ \
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EzcTemplateMethod item; \
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\
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pt::utf8_to_wide(name, item.fun_name); \
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item.fun = fun; \
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\
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ezc_template_method_tab.push_back(item); \
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} \
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\
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void Insert(const wchar_t * name, void (classname::*fun)(Info &)) \
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{ \
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EzcTemplateMethod item; \
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\
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item.fun_name = name; \
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item.fun = fun; \
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\
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ezc_template_method_tab.push_back(item); \
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} \
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\
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void Insert(const std::wstring & name, void (classname::*fun)(Info &)) \
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{ \
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EzcTemplateMethod item; \
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\
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item.fun_name = name; \
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item.fun = fun; \
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\
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ezc_template_method_tab.push_back(item); \
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} \
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\
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std::vector<EzcTemplateMethod> ezc_template_method_tab; \
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std::wstring ezc_object_name; \
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\
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private:
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template<class StreamType>
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class Objects
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{
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public:
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typedef std::vector<BaseObj<StreamType> * > ObjectsTable;
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typedef typename ObjectsTable::iterator Iterator;
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void Insert(BaseObj<StreamType> * base_fun);
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void Insert(BaseObj<StreamType> & base_fun);
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Iterator Begin();
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Iterator End();
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size_t Size() const;
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void Clear();
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Iterator Find(const std::wstring & key, int & method_index);
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private:
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ObjectsTable obj_tab;
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};
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template<class StreamType>
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typename Objects<StreamType>::Iterator Objects<StreamType>::Find(const std::wstring & key, int & method_index)
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{
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Iterator i = obj_tab.begin();
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method_index = -1;
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for( ; i != obj_tab.end() ; ++i)
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{
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int index = (*i)->FindFun(key);
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if( index != -1 )
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{
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method_index = index;
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return i;
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}
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}
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return obj_tab.end();
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}
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template<class StreamType>
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void Objects<StreamType>::Insert(BaseObj<StreamType> * base_fun)
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{
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obj_tab.push_back(base_fun);
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}
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template<class StreamType>
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void Objects<StreamType>::Insert(BaseObj<StreamType> & base_fun)
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{
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obj_tab.push_back(&base_fun);
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}
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template<class StreamType>
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typename Objects<StreamType>::Iterator Objects<StreamType>::Begin()
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{
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return obj_tab.begin();
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}
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template<class StreamType>
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typename Objects<StreamType>::Iterator Objects<StreamType>::End()
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{
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return obj_tab.end();
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}
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template<class StreamType>
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size_t Objects<StreamType>::Size() const
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{
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return obj_tab.size();
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}
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template<class StreamType>
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void Objects<StreamType>::Clear()
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{
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obj_tab.clear();
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}
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} // namespace Ezc
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#endif
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