#include <iostream>
using namespace std;
 
 
 
class A {
public:
    A(){
        cout << "constructor" << endl;
        throw 1;
    }
};
 
void* operator new(size_t size, int i){
    cout << "in placement new" << endl;
    return ::operator new(size);
}
 
void operator delete(void *ptr, int i){
    cout << "in placement delete" << endl;
    ::operator delete(ptr);
}
 
int main(){
    int o = 9;
    try {
       A* a = new(o) A;
    } catch(...) {}
}
 
 

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