/*
* AutoExcp.cpp
*
* Created on: 2013-5-30
* Author: msm
*/
#include <iostream>
using namespace std;
class Except1{};
class Except2{
public:
Except2(const Except1&){}
};
void f(){throw Except1();}
int main(){
try{
f();
}catch(Except2&){
cout << "Except2&" << endl;
}catch(Except1&){
cout << "Except1&" << endl;
}
}
//异常不会自动转型,即使在目标函数中添加构造函数也不会自动转型
* AutoExcp.cpp
*
* Created on: 2013-5-30
* Author: msm
*/
#include <iostream>
using namespace std;
class Except1{};
class Except2{
public:
Except2(const Except1&){}
};
void f(){throw Except1();}
int main(){
try{
f();
}catch(Except2&){
cout << "Except2&" << endl;
}catch(Except1&){
cout << "Except1&" << endl;
}
}
//异常不会自动转型,即使在目标函数中添加构造函数也不会自动转型
//此处依旧按照Except1异常处理,不会像类一样自动转型
在继承中有关异常的处理:
/*
* Basexcp.cpp
*
* Created on: 2013-5-30
* Author: msm
*/
#include <iostream>
using namespace std;
class X{
public:
class base{};
class big : public base{};
class small : public base{};
void f(){throw big();}
};
int main(){
X x;
try{
x.f();
}catch(X::base&){
cout<< "base" << endl;
}catch(X::big&){
cout<<"big"<<endl;
}catch(X::small&){
cout<< "small"<<endl;
}
}
//结果:base
//异常会处理捕捉基类异常的语句,即使是子类的捕捉异常也会首先按照基类处理进行捕获