Russian Qt Forum

C++ (Qt)
class CUser {
 ...
 CList * mList;
};
 

C++ (Qt)
struct CList {
...
};
 
template <class T>
struct CListVec : public CList, public std::vector <T> {
...
}; 
 
// теперь я могу написать напр
mList = new CListVec <float>;
 

C++ (Qt)
mList->size()
(*mList)[ 1 ]
 

C++ (Qt)
mList->size()
(*mList)[ 1 ]
 

mList = new CListVec <float>;
int CList_size = static_cast<CList*>(mList)->size();
size_t vector_size = static_cast<std::vector<float>*>(mList)->size();

C++ (Qt)
template <class T>
class CUser {
 ...
 
 std::vector <T> * mList;
};
 

C++ (Qt)
void append( (( mType )? float : double)  item )
 

C++ (Qt)
#include <vector>
 
struct CList {
	virtual size_t size	( void ) = 0;
	virtual double GetDoub	( size_t index ) = 0;
};
 
template <class T>
struct CListVec : public CList {
	CListVec( const T & elem )	{ mVec.push_back(elem);	}
 
	virtual size_t size	( void )		{ return mVec.size(); }
	virtual double GetDoub	( size_t index )	{ return mVec[index]; }
 
	std::vector <T> mVec;
};
 
int main(int argc, char *argv[])
{
	(void) argc;
	(void) argv;
	CList * vecLst1 = new CListVec <double> (0.123);
	CList * vecLst2 = new CListVec <float> (0.456f);
	double d1 = vecLst1->GetDoub(0);
	double d2 = vecLst2->GetDoub(0);
	printf("d1 = %g, d2 = %g, size = %ld\n", d1, d2, vecLst1->size());
	return 0;
}