avr-g++: what can i do if the operator new() fails?

[Kövesdi György <kgy@xxxxxxxxxx>]

Hi,

I use avr-g++ 4.2.1.
To save space in my embedded project, my classes have their own operator 
new(). But the constructor is always called, even if the allocation fails. 
How can I avoid calling constructors in this case? The exception handling 
seems not yet working on AVR platform.

Thanks in advance
K. Gy.