Re: size of Empty Class
On Mar 13, 3:52 pm, p...@informatimago.com (Pascal J. Bourguignon)
wrote:
James Kanze <james.ka...@gmail.com> writes:
On Mar 13, 12:53 pm, "Marco Nef" <maill...@shima.ch> wrote:
=A75.3.3/2 "The size of a most derived class shall be greater than z=
ero"
Thank you, I found it. The reason must be arrays... I don't
like this paragraph, but it is standard.
The reason is identity, in general. If objects could have 0
size, you could end up with two different objects at the
same address.
void* p=malloc(0);
void* q=malloc(0);
assert((p!=NULL) and (q!=NULL) and (p!=q));
If C can do it with malloc, why C++ couldn't do it with
classes and new?
I'm not sure what you mean by "do it". There's no problem with
the above in C++ either. And it has nothing to do with sizeof.
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