#include <iostream>
struct A{
};
struct B:public A{
};
void handle(A& a){
throw;
}
void f(){
try{
throw B();
}catch(A& a){
handle(a);
}
}
int main(){
try{
f();
}catch(B& b){
std::cout<<"got a B"<<std::endl;
}catch (A& a){
std::cout<<"got an A"<<std::endl;
}
}
====output====
got a B
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