From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <3e1162e60604101618u4e4ce0c1yac9f0246a116a2e5@mail.gmail.com>
Date: Mon, 10 Apr 2006 16:18:56 -0700
From: "David Leimbach" <leimy2k@gmail.com>
To: "Fans of the OS Plan 9 from Bell Labs" <9fans@cse.psu.edu>
Subject: Re: [9fans] Good enough approximation for ape/pcc
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On 4/10/06, Andy Newman <andy@silverbrookresearch.com> wrote:
> On Tue, 2006-04-11 at 10:07 +1200, Andrew Simmons wrote:
> > I was recently told about the following compiler option. I honestly tho=
ught
> > it was an April Fool's joke:
> >
> > -Weffc++
>
> The "joke" is more that to use the language safely/correctly pretty much
> requires such an option.   There is a mini-industry of "don't do that"
> books as the g++ switch shows. Having now done a lot of C++ I find it
> quite unbelievable what people will put up with and claim to be good
> (but hey they pay me for it).  Although C++ does provide a few niceties
> it creates a whole slew of problems of its own which need to be fixed
> with all manner of convoluted constructs and practices. Don't get me
> started on the library, they're only now figuring out that it mostly
> sucks.
>
>
>
Here here!  And this is from a guy who used to think that C++ was
pretty much it.  I learned it early on (right after QBASIC on DOS, and
before I learned C believe it or not...).  Concurrency,
exception-safety, clearness of error messages, networking, memory
management.  I don't think *any* of these problems have been
adequately handled in C++ in a way that doesn't require you to think
of the possible side-effects and consequences of any lines of code you
may write.

It's really pretty scary to think how much C++ is probably out there,
and written in a hurry.  It's possible to write good C++ code, just
not likely to fall into it by accident.

One would think that even middle managers could just look at the
volumes of books on the subject of being careful about C++ and realize
that if there is an industry around writing high quality code in just
one language, that maybe that's not the best tool to use in all cases.

Interesting example...

SomeContainer::iterator it =3D SomeContainerObject.begin();

for (; it !=3D SomeContainerObject.end(); ++it)

is probably a lot faster than

for(; it !=3D SomeConatinerObject.end(); it++)

And I'd bet that not much more than half of the so-called C++
programmers out there in the world know why this is.

Dave