I cant' seem to catch this exception in C++

For some reason the program exits when executed while testing the handling of an exception. This is the class im using as the exception recipient

#ifndef _BADALLOC
#define _BADALLOC
#include <cstring>
using namespace std;
class badalloc{
private:
    char* Message;
    double Number;
    
public:
    explicit badalloc(char* M="Error",const int & N=0)  {strcpy(Message,M); Number=N;}
    char* what () const {return Message;}
};
#endif

this is the function member of another class that generates the exception

void ContoCorrente::Prelievo ( const double & P) throw ( badalloc )
{
if(P>0)
{ 
    throw (badalloc ("ERROR 111XX",P));
} ...

test main :

try
{
c2.Prelievo(20);

}
catch ( badalloc e)
{
    cout<<e.what()<<endl;
}

output:

Process exited after 1.276 seconds with return value 3221225477 Press any key to continue . . .

i tried defining the badalloc object to throw as "const" but to no use. any ideas?

Very simple, you are copying to an uninitialised pointer Message in your badalloc class.

You'd get this error just by constructing a badalloc object. This has nothing to do with exceptions.

EDIT

Here's a possible solution, using std::string to avoid the pointer problems.

#ifndef _BADALLOC
#define _BADALLOC

#include <string>

class badalloc{
private:
    std::string Message;
    double Number;
    
public:
    explicit badalloc(const char* M="Error",const int & N=0) : Message(M), Number(N) {}
    const char* what () const {return Message.c_str();}
};

#endif