[Bug c++/50594] Option -fwhole-program discards replaced new operator for std::string

[rguenther at suse dot de]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50594

--- Comment #17 from rguenther at suse dot de <rguenther at suse dot de> 2011-10-04 10:03:36 UTC ---
On Tue, 4 Oct 2011, redi at gcc dot gnu.org wrote:

> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50594
> 
> --- Comment #16 from Jonathan Wakely <redi at gcc dot gnu.org> 2011-10-04 09:54:57 UTC ---
> I don't think they're special to the front end either, it transforms "new T"
> into a call to the relevant library allocation function and then invokes a
> constructor.  The allocation functions are just ordinary functions implemented
> in libsupc++ but as weak symbols so they can be overridden.  If we just declare
> them externally_visible in libsupc++'s <new> won't that work?

If it's required to include <new> to override them yes, but I doubt that
from looking at our testsuite ;)

Richard.