list sort map char

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struct queryRet
{
std::string code;
DATE t;

bool operator>(const queryRet& _Right) const
{

return _Right.t<t;

}

bool operator<(const queryRet& _Right) const
{
return _Right.t>t;
}

};

list.sort();

    struct PriortirySort : public std::greater<LPCONDITION>
    {
        bool operator()(const LPCONDITION &pfi1, const LPCONDITION &pfi2) const
        {
            //倒序
            return pfi1->priortiry > pfi2->priortiry;
        }
    };

Handlers.sort(PriortirySort());

std::map<const char*,const char*,CharPtrCmp>* pcontent=NULL;

typedef struct CharPtrCmp
{
bool operator()( const char * s1, const char * s2 ) const
{
return strcmp( s1, s2 ) < 0;
}
}*pCharPtrCmp;

typedef struct TCharPtrCmp
{
    bool operator()( const TCHAR * s1, const TCHAR * s2 ) const
    {
        return _tcscmp( s1, s2 ) < 0;
    }
}*pTCharPtrCmp;

    typedef struct CHANNELTag
    {
        int     time;
        int     use;
    } USETRKINFO;

    static bool USETRKgreater ( USETRKINFO& elem1, USETRKINFO& elem2 )
    {
        return elem1.time < elem2.time;
    }

std::vector<USETRKINFO> usetrk;

std::sort(usetrk.begin(),usetrk.end(),USETRKgreater);