[Python-Dev] Opinions on const-correctness?
M.-A. Lemburg
mal@lemburg.com
2002年3月12日 22:17:24 +0100
David Abrahams wrote:
>> > > The largest negative effect I can see is that it'll add some
> turbulence
> > > to the CVS log (many little changes).
> >
> > -1.
> >
> > I've never tried to enforce const-correctness before, but I've heard
> > enough horror stories about this. The problem is that it breaks 3rd
> > party extensions left and right,
>> Only if you change the strings /returned/ by Python (or structure
> members) to const char*. Changing your parameters to const char* won't
> hurt anybody.
It doesn't hurt already compiled extensions, but it certainly
breaks *all* yet to be compiled extensions !
Besides, it doesn't buy you much, since not all compilers use
the information for optimization (most I've seen only do careful
checks of the implied read-only nature which can be very
annoying).
--
Marc-Andre Lemburg
CEO eGenix.com Software GmbH
______________________________________________________________________
Company & Consulting: http://www.egenix.com/
Python Software: http://www.egenix.com/files/python/