* 'new' behavior when malloc() fails
@ 2001-02-26 23:19 David Whedon
2001-02-27 14:20 ` Alexandre Oliva
0 siblings, 1 reply; 2+ messages in thread
From: David Whedon @ 2001-02-26 23:19 UTC (permalink / raw)
To: gcc-help
I'm using the gnu c++ compiler. The question is related to the 'new' operator.
Sometimes the calls to __builtin_new (g++ generates these calls) return NULL
because there is no memory to be had (I'm working on an embedded system).
Unfortunately, the code that g++ generates doesn't check the return value of
__builtin_new before calling the class constructor.
I can only assume that this is by design.
Calling the constructor when the system was unable to allocate memory for the
class is bad? What am I missing?
This may be a c++ specific question, and may not be gcc-specific, if so I'm
happy to ask on a c++ list.
Thank you,
David Whedon
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: 'new' behavior when malloc() fails
2001-02-26 23:19 'new' behavior when malloc() fails David Whedon
@ 2001-02-27 14:20 ` Alexandre Oliva
0 siblings, 0 replies; 2+ messages in thread
From: Alexandre Oliva @ 2001-02-27 14:20 UTC (permalink / raw)
To: David Whedon; +Cc: gcc-help
On Feb 27, 2001, David Whedon <dwhedon@gordian.com> wrote:
> Sometimes the calls to __builtin_new (g++ generates these calls)
> return NULL
IIRC, only old releases of GCC do. Newer releases have the behavior
dictated by the C++ Standard, which is to throw an exception.
--
Alexandre Oliva Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/
Red Hat GCC Developer aoliva@{cygnus.com, redhat.com}
CS PhD student at IC-Unicamp oliva@{lsd.ic.unicamp.br, gnu.org}
Free Software Evangelist *Please* write to mailing lists, not to me
^ permalink raw reply [flat|nested] 2+ messages in thread
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