Re: overloading new/delete ....

Here is the code:
I am using visual studio 2005.

class ExceptionRouter{
public:
    ExceptionRouter(){ std::cout<<"ExceptionRouter ctor
called"<<std::endl;};
    ~ExceptionRouter(){std::cout<<"ExceptionRouter dtor
called"<<std::endl; counter=0;};
    // I want to choose what exception to throw at run time .. I do not
know how
        // please help. This method is to demo other type of exception
later on
         void throwException(exception& e, std::string &s)){
        std::cout<<s<<std::endl;
        throw (e);
        ++counter;
    };
private:
    static int counter; // count the total number of exception thrown

};

static int MyAlloc::counter=0;

class MyMemoryHandler
{
public:

    static void* operator new(size_t size) { return ::operator
new(size);};
    static void* operator new(size_t,ExceptionRouter& m)
        {
    std::cout << "new throwing bad_alloc" << std::endl;
    m.throwException(std::bad_alloc,"bad_alloc is thrown");
        } ;
    static void* operator new[](size_t size) {return ::operator
new[](size);};
    static void* operator new[](size_t size, ExceptionRouter& m) {

    std::cout << "new throwing bad_alloc" << std::endl;
    m.throwException(std::bad_alloc,"bad_alloc is thrown");
         };
       // Please help, the following are the only signature I can use
to make the program compiles.. But I want delete to throw..
    static void operator delete(void* p,const std::nothrow_t)throw();
    static void operator delete(void* p,const
std::nothrow_t,ExceptionRouter& m)throw();
    static void operator delete[](void* p,const std::nothrow_t)throw();
    static void operator delete[](void* p,const
std::nothrow_t,ExceptionRouter& m)throw();

private:
    int mode;
    MyMemoryHandler(void);
    ~MyMemoryHandler(void);

};

Sample main program:

int main(){
  ExceptionRouter e;
  char* array1 = new char[10]; // not throw
  char *array2 = new(char[10], e); //throw .. don't know how to do
this.

}

The ultimate client file is just an ordinary template version of a
Stack class.

mlimber wrote: