Re: Override malloc,calloc,realloc and free?
"Douglas A. Gwyn" <DAGwyn@null.net> wrote in message news:<3EF351E4.317CE00C@null.net>...
> Jun Woong wrote:
> > "Dan Pop" <Dan.Pop@cern.ch> wrote...
> > > Where is that "unspecified behavior", according the definition of
> > > "behaviour" you have posted above?
> > The manner and timing of static initialization.
> That's not "behavior" in the sense that matters for conformance.
> It's an unspecified *aspect* of the implementation. It would be
> very difficult to make a program have its behavior depend on the
> details of this aspect.
I accept it.
> > But the definition of "behavior" also includes "external appearance,"
> > which is the major reason I suspect the above two contain unspecified
> > behavior.
What I'd like to know is the purpose of "external appearance" in the
definition. What's the "external appearance" of a program exactly?
> So far as the C standard is concerned, the behavior of a program
> manifests itself in the output of the program, for example in
> modifications it makes to external files.
But, is there behavior which doesn't affect the program's output but
which still affects the program's conformance?
Jun, Woong (firstname.lastname@example.org)
Dept. of Physics, Univ. of Seoul
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