hi there,
I am confused about the behavior of the operator 'new', when it is passed
an argument of zero.

*** [1] On page 59 of the ARM (Section 5.3.3) it is said:

"This implies that an operator new() can be called with the argument zero.
In this case, a pointer to an object is returned.  Repeated such calls return
pointers to distinct objects."

Example:            blah .. blah...


*** [2] Now on page 280 of ARM (Section 12.5), it is said:

"If operator new () cannot allocate storage or if it is called with the argument
0 it will return 0.


I tried the given example on page 59 with CenterLine C++ compiler,
found that it confirms to the example.  So, i am confused about what
exactly the second statement means.  Can somebody help?

Thanks,
-----
shyam

Shyam Chintalapati (ssc@netcom.com) wrote:
> hi there,
> I am confused about the behavior of the operator 'new', when it is passed
> an argument of zero.

> *** [1] On page 59 of the ARM (Section 5.3.3) it is said:

> "This implies that an operator new() can be called with the argument zero.
> In this case, a pointer to an object is returned.  Repeated such calls return
> pointers to distinct objects."

> Example:            blah .. blah...


> *** [2] Now on page 280 of ARM (Section 12.5), it is said:

> "If operator new () cannot allocate storage or if it is called with the argument
> 0 it will return 0.

I'm not sure which ARM you're looking at, but my $12.5 on page 280 says

"If operator new() cannot allocate storage, it will return 0."

Perhaps you have an older version?

Marc