C++VS2008-类模板实例化出现奇怪错误

我正在将一个相对较大的代码从Linux移植到Windows（Visual Studio 2008，我必须使用它）。我完成了移植，它正在工作，但我不得不对一小段代码进行注释，因为Visual Studio在这方面出现了错误，我无法完全理解原因。因此，基本上，有一个函子从std:：map中收集满足某个条件的所有"项"，定义如下：

/*
 * Map collector
 */
template<class TMap>
class CMapCollector
{
    public:
        typedef typename TMap::value_type tValueType;
        CMapCollector(void)
        { }
        void operator () (const tValueType& rcValue)
        {
            if (CheckCondition(rcValue))
                mCollector.push(rcValue);
        }
        bool NextResult(void) const
        {
            return (!mCollector.empty());
        }
        tValueType GetResult(void)
        {
            if (!NextResult())
                return tValueType();
            tValueType curr_value = mCollector.front();
            mCollector.pop();
            return curr_value;
        }
    private:
        virtual bool CheckCondition(const tValueType& rcValue) const = 0;
        typedef std::queue<tValueType> tCollectorContainer;
        tCollectorContainer mCollector;
};

然后，通过继承它，定义了一些收集器类。我写了一个显示错误的小例子，以便从所有其他代码中提取它：

/*
 * Some class
 */
class CMyClass
{
    public:
        CMyClass(const int cNum) : mNum(cNum)
        { }
        bool DifferentFrom(const int cFrom) const
        {
            return (Get() != cFrom);
        }
        bool EqualTo(const int cTo) const
        {
            return (Get() == cTo);
        }
    private:
        int Get(void) const
        {
            return mNum;
        }
        int mNum;
};
/* Some map definition */
typedef std::map<int, CMyClass *> tMyMap;
/*
 * Real collectors
 */
class CNoNullCollector : public CMapCollector<tMyMap>
{
    private:
        bool CheckCondition(const tValueType& rcValue) const
        {
            return (rcValue.second->DifferentFrom(0));
        }
};
class CValueCollector : public CMapCollector<tMyMap>
{
    public:
        CValueCollector(const int cValue) : mValue(cValue)
        { }
    private:
        bool CheckCondition(const tValueType& rcValue) const
        {
            return (rcValue.second->EqualTo(mValue));
        }
        int mValue;
};
/*
 * main
 */
int main(int argc, char *argv[])
{
    tMyMap my_map;
    /* Insert some value */
    my_map.insert(std::make_pair(1, new CMyClass(0)));
    my_map.insert(std::make_pair(2, new CMyClass(1)));
    my_map.insert(std::make_pair(3, new CMyClass(2)));
    my_map.insert(std::make_pair(4, new CMyClass(2)));
    my_map.insert(std::make_pair(5, new CMyClass(3)));
    /* Collect values */
    CNoNullCollector collector = std::for_each(my_map.begin(), my_map.end(), CNoNullCollector());
    while (collector.NextResult())
    {
        CNoNullCollector::tValueType curr_result = collector.GetResult();
        /* Do something ... */
    }
    /* Free memory, not written ... */
    return 0;
}

这段代码在使用g++的Linux上编译得很好（我尝试过使用机器上提供的g++4.2和4.9）。我还试用了Visual Studio 2013，效果很好。然而，使用VS2008（以及VS2010）编译它时，它在实例化类模板"CMapCollector"时会出现错误。错误出现在std:：swap函数中，从std:：pair调用，此时（"实用程序"文件，标准包含）：

template<class _Ty> inline
void swap(_Ty& _Left, _Ty& _Right)
{   // exchange values stored at _Left and _Right
if (&_Left != &_Right)
    {   // different, worth swapping
    _Ty _Tmp = _Left;
    _Left = _Right;     // <-- error C3892: '_Left' : you cannot assign to a variable that is const
    _Right = _Tmp;      // <-- error C3892: '_Right' : you cannot assign to a variable that is const
    }
}

这是完整的错误消息：

    c:program files (x86)microsoft visual studio 9.0vcincludeutility(22) : error C3892: '_Left' : you cannot assign to a variable that is const
        c:program files (x86)microsoft visual studio 9.0vcincludeutility(31) : see reference to function template instantiation 'void std::swap<_Ty>(_Ty &,_Ty &)' being compiled
        with
        [
            _Ty=int
        ]
        c:program files (x86)microsoft visual studio 9.0vcincludeutility(64) : see reference to function template instantiation 'void std::_Swap_adl<_Ty1>(_Ty &,_Ty &)' being compiled
        with
        [
            _Ty1=int,
            _Ty=int
        ]
        c:program files (x86)microsoft visual studio 9.0vcincludeutility(61) : while compiling class template member function 'void std::pair<_Ty1,_Ty2>::swap(std::pair<_Ty1,_Ty2> &)'
        with
        [
            _Ty1=const int,
            _Ty2=CMyClass *
        ]
        c:program files (x86)microsoft visual studio 9.0vcincludedeque(518) : see reference to class template instantiation 'std::pair<_Ty1,_Ty2>' being compiled
        with
        [
            _Ty1=const int,
            _Ty2=CMyClass *
        ]
        c:program files (x86)microsoft visual studio 9.0vcincludequeue(24) : see reference to class template instantiation 'std::deque<_Ty>' being compiled
        with
        [
            _Ty=std::pair<const int,CMyClass *>
        ]
        c:usersmy_namedesktoptesttesttest.cpp(42) : see reference to class template instantiation 'std::queue<_Ty>' being compiled
        with
        [
            _Ty=std::pair<const int,CMyClass *>
        ]
        c:usersmy_namedesktoptesttesttest.cpp(81) : see reference to class template instantiation 'CMapCollector<TMap>' being compiled
        with
        [
            TMap=tMyMap
        ]
c:program files (x86)microsoft visual studio 9.0vcincludeutility(23) : error C3892: '_Right' : you cannot assign to a variable that is const

如果我注释类模板实例化的部分：

CNoNullCollector collector = std::for_each(my_map.begin(), my_map.end(), CNoNullCollector());
while (collector.NextResult())
{
    CNoNullCollector::tValueType curr_result = collector.GetResult();
    /* Do something ... */
}

编译将成功完成。我知道恒常有一些问题，但我不明白在哪里。g++为什么能成功编译它？

编辑：

我知道这与std:：队列和std:：映射的"键"（因此也是std:：对的"第一个"）有关，但我不知道如何解决它