c++ - Optimization bug in exception handling
- Christof Meerwald <cmeerw web.de> Dec 31 2002
#include <stdio.h>
struct A
{ };
int main()
{
int *i = 0;
try
{
i = new int(0);
throw A();
}
catch (const A &a)
{
printf("%d\n", *i);
}
}
Compiled with optimizations enabled (-o+all), the compiler assumes that i is
still NULL when the exception is caught:
[...]
xor ECX,ECX
push dword ptr [ECX]
push offset FLAT:_DATA
call near ptr _printf
[...]
Extracted from omniORB (it only occurs when an omniORB application exits
and omniORB tries to clean up...)
bye, Christof
--
http://cmeerw.org JID: cmeerw jabber.at
mailto cmeerw at web.de
...and what have you contributed to the Net?
Dec 31 2002








Christof Meerwald <cmeerw web.de>