Re: crash when run out of memory

From: Ali Çehreli (acehreli_at_yahoo.com)
Date: 11/06/04 

Date: Fri, 5 Nov 2004 15:17:24 -0800

"jy" <jy_austin@yahoo.com> wrote in message
news:fa63e07d.0410291311.1239979c@posting.google.com...
> I have a C++ program which is "purify" clean, but crashes (called
terminate)
> when run out of memory on linux 2.4.27. From the core file, the crashes
happen
> after I throw an exception (after malloc returns null),

I think it is new that throws the exception, not you. new is likely
using malloc internally and throwing std::bad_alloc when there is no
memory.

> and the stack winding
> was calling the destructor of a large object. What's the genearl guidlines
for
> debugging, fixing, or at least making it a graceful exit than a crash?

Catch std::bad_alloc exception in main and report it:

int main()
{
    try
    {
        /* the application code */
    }
    catch (std::bad_alloc const &)
    {
        cout << "no memory\n";
    }
}

Ali

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