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我無法創建LO類的對象。代碼如下。創建對象時未定義的引用
Tem.h
#ifndef TEM_H_
#define TEM_H_
#include <iostream>
#include <exception>
#include "UDPTest.h"
template<class T>
class Tem : public std::exception {
public:
T* UDPt;
Tem(T& t) throw();
virtual ~Tem() throw();
};
template<class T>
class LO :public Tem<T> {
char* mez;
public:
LO() throw() ;
char* what() const throw();
virtual ~LO() throw();
};
template<class T>
class AT :public Tem<T>{
char* mez;
public:
AT() throw();
char* what() const throw();
virtual ~AT() throw();
};
#endif /* TEM_H_ */
Tem.cpp
#include "Tem.h"
#include <iostream>
using namespace std;
template<class T>
Tem<T>::Tem(T& t) throw() : exception(){
UDPt = t;
// TODO Auto-generated constructor stub
}
template<class T>
Tem<T>::~Tem() throw() {
// TODO Auto-generated destructor stub
}
template<class T>
LO<T>::LO() throw() {
cout<<"LO constructor"<<endl;
}
template<class T>
LO<T>::~LO() throw(){
}
template<class T>
char* LO<T>::what() const throw(){
return "Lockout validation failed.";
}
template<class T>
AT<T>::AT() throw(){
cout<<"AT validation failed."<<endl;
}
template<class T>
char* AT<T>::what() const throw(){
return "Active Task validation failed.";
}
template<class T>
AT<T>::~AT() throw(){
}
UDPTest.h
#ifndef UDPTEST_H_
#define UDPTEST_H_
class UDPTest {
public:
int udp;
int tcp;
UDPTest();
virtual ~UDPTest();
};
#endif /* UDPTEST_H_ */
templatetest.cpp
#include <iostream>
#include "Tem.h"
#include "UDPTest.h"
//#include <exception>
using namespace std;
int main() {
cout << "!!!Hello World!!!" << endl; // prints !!!Hello World!!!
try{
throw LO<int>();
//LO<int> loo;
}catch(exception& e){
cout<<"got";
}
return 0;
}
，LO類繼承TEM類，這是模板，TEM類內部我有UDPTest類的指針。
據我所知，我做錯了某處，但我無法知道。請幫我
感謝
有未定義的引用錯誤，我在哪裏投擲物體。我不知道發生了什麼問題。 –