Hi, My C++ is a bit rusty, to say the least, so I picked up my ancient Stroustrup book and "derived" an example from it, see attachment range.C .
This program can be tweaked so it catches exceptions several ways. Works
too, with our current toolset.
The null.C example however - when used with my exception handling code -
shows a dialog from my new exception handler, but never makes its way to
the C++ exception handler.
Running the null.C program on Linux creates a coredump too, no exception
handler is called.
I assumed that the goal is to have the system level exception (from use
of a null pointer) be caught by the C++ exception handler. Am I wrong ?
Danny
--
Danny Backx ; danny.backx - at - scarlet.be ; http://danny.backx.info
#include <iostream>
using namespace std;
int i, *p;
void handler()
{
cout << "Handler" <<endl;
p = &i;
}
main()
{
p = 0;
try {
*p = 123;
} catch(...) {
handler();
}
cout << "Value is " << *p << endl;
}
#include "iostream"
#include <windows.h>
using namespace std;
class Vector {
int *p;
int sz;
public:
enum { max = 300 } ;
class Range { }; // range exception
class Size { }; // bad size exception
Vector(int sz);
int& operator[](int i);
};
Vector::Vector(int s)
{
if (s < 0 || max < s) throw Size();
sz = s;
// do something sensible ...
}
int& Vector::operator[](int i)
{
if (0 <= i && i <sz)
return p[i];
throw Range();
}
void f()
{
#if 1
Vector v(10);
#else
Vector v(1000);
#endif
try {
cout << v[30];
}
catch (Vector::Range) {
MessageBoxW(0, L"Exception", L"Range handler", 0);
}
catch (...) {
MessageBoxW(0, L"Exception", L"Generic handler", 0);
}
}
main()
{
try {
f();
}
#if 1
catch (Vector::Size) {
MessageBoxW(0, L"Exception", L"Size handler", 0);
}
#endif
catch (...) {
MessageBoxW(0, L"Exception", L"Generic handler", 0);
}
}
signature.asc
Description: This is a digitally signed message part
------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/
_______________________________________________ Cegcc-devel mailing list Cegcc-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/cegcc-devel
