set_unexpected (<exception>)
Establishes a new unexpected_handler to be when an unexpected exception is encountered.
unexpected_handler
set_unexpected(
unexpected_handler _Pnew
) throw( );
Parameters
- _Pnew
The function to be called at
Return Value
The address of the previous unexpected_handler.
Remarks
_Pnew must not be a null pointer.
The C++ Standard requires that unexpected is called when a function throws an exception that is not on its throw list. The current implementation does not support this. The following example calls unexpected directly, which then calls the unexpected_handler.
Example
// exception_set_unexpected.cpp
// compile with: /c /EHsc
#include<exception>
#include<iostream>
using namespace std;
void unfunction( )
{
cout << "I'll be back." << endl;
terminate( );
}
int main( )
{
unexpected_handler oldHand = set_unexpected( unfunction );
unexpected( );
}
I'll be back. This application has requested the Runtime to terminate it in an unusual way. Please contact the application's support team for more information.
Requirements
Header: <exception>
Namespace: std