exception handling

[sisodia]

I am trying to use the try catch for any kind of exception by using catch(...) but it is not catching the exception. Is there any method through which i can catch any exception which occurs in a particular function or logic.

int main()
{
try
{
int a=4,b=0;
int c;
c=a/b;
cout<<"c="<<c;
throw;
}
catch(...)
{
cout<<"\ndivision by zero";
}
_getch();
}

[firedraco]

AFAIK throw; simply forwards the current exception. Since you have no exception, I don't really know what it would do. Try something like throw std::exception();

[codewalker]

If you are thinking that catch(...) will catch division by zero then its not going to. Devision by zero is not a C++ exception

[Peter87]

§15.1/9

If no exception is presently being handled, executing a throw-expression with no operand calls std::terminate().

[sisodia]

so is there any method through which i can catch any exception without giving the condition as throw std::exception(); is also not working.

[codewalker]

http://www.cplusplus.com/doc/tutorial/exceptions/ please

[Peter87]

Your catch block will catch all types of exceptions but when you throw an exception you have to specify what it is that you are throwing.

[sisodia]

means if i remove throw; from it then it should work?

[sisodia]

But even then also it is not working, i have tried that too....

int main()
{
try
{
int a=4,b=0;
int c;
c=a/b;
cout<<"c="<<c;
}
catch(...)
{
cout<<"\ndivision by zero";
}
_getch();
}

[Peter87]

As codewalker said, division by zero does not throw an exception. It's undefined behaviour so you should just not do it.

[sisodia]

means i need to throw an exception if it not in there. Actually i was looking for a way so that i need not to throw any exception but then also the catch block catches it as in java it does.