c++/2628: Class constructor called when operator new returns null.

[pere@hungry.com]

>Number:         2628
>Category:       c++
>Synopsis:       Class constructor called when operator new returns null.
>Confidential:   no
>Severity:       critical
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          wrong-code
>Submitter-Id:   net
>Arrival-Date:   Tue Apr 24 13:26:00 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator:     pere@hungry.com
>Release:        gcc-2.95.2
>Organization:
>Environment:
Debian 2.2 (up to date using apt-get upgrade)
>Description:
When running out of memory and operator new returns 0,
the constructor is called with this=0.  This crashes our
application.  To my suprise, adding a prototype for
operator new, with 'throw ()' included, fixes the problem.
I believe the compiled code should be changed to always
check the result from operator new before calling the
object constructor.
>How-To-Repeat:
Compile and run the source to trigger the assert.
>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted:
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