On Jun 30, 5:57 pm, Jerry Coffin <jcof...@taeus.com> wrote:
> In article <62e3029a-2655-4b63-9511-d561acba7a89@
> 34g2000hsh.googlegroups.com>, julek...@go2.pl says...

> > is there a tool which parses cpp and h files, finds unused
> > things, and deletes them from code?

> Yes. It's called an "optimizing compiler". :-)

> > For example unused methods, enums, enum
> > values, defines... It doesn't have to be sophisticated (it doesn't
> > have to check, that ClassA::funX is used somewhere, but ClassB::funX
> > is not used anywhere, so we can delete only ClassB::funX).

> Realistically, getting something like this to work correctly would be
> quite difficult -- little short of a full-blown compiler could really do
> the job correctly.

FWIW: one Fortran compiler I used (around 1978) did output a
message when it suppressed a line because it couldn't be
reached, or otherwise did something which had no effect. This
could actually be very ful---in one case, I remember getting
messages to the effect:
line x: removed, because variable YO is never used.
line y: variable Y0 used without being set.
I'm not sure about the relative utility of such a thing in C++,
however. The preprocessor makes it a bit awkward: what if I
don't use the enum E (defined in some header); maybe some other
code in another application does use it.

--
James Kanze (GABI Software) email:james.kanze@gmail.com
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