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-----Original Message-----
From: Moreira, Alberto [mailto:xxxxx@compuware.com]
Sent: Wednesday, October 23, 2002 11:48 AM
To: NT Developers Interest List
Subject: [ntdev] Re: C++ in kernel. was Re: Batch file for Visual S
tudio build,
The issue of correctly handling exceptions is a library issue and an OS
issue, not a language one. If MSVC++ 6.0 doesn’t have a good level of
support for kernel side code, that’s not a problem with the language but
a problem with that particular compiler ! Part of using a language in
kernel mode, well, any language for that matter, is to have a suitable
library that works fine in kernel mode and lets you use the full
language, or as much of it as it is possible.
Alberto.
-----Original Message-----
From: Jamey Kirby [mailto:xxxxx@storagecraft.com]
Sent: Wednesday, October 23, 2002 12:40 PM
To: NT Developers Interest List
Subject: [ntdev] Re: C++ in kernel. was Re: Batch file for Visual S
tudio build,
Throw exceptions… You mean C++ exceptions? In kernel-mode? I rest my
case…
Jamey
-----Original Message-----
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com] On Behalf Of Moreira, Alberto
Sent: Wednesday, October 23, 2002 9:12 AM
To: NT Developers Interest List
Subject: [ntdev] Re: C++ in kernel. was Re: Batch file for Visual S
tudio build,
Say you have an Irp class. You declare in the beginning of your program
Irp myirp;
By the time the next line has been executed, the constructor has already
run. How do you believe a return value from a constructor should be used
by the language ? Then, say you have a line of code such as
Irp *newirp = new Irp(…parameters…);
here, again, how do you believe the return value should be used ? You
see, constructors ain’t functions ! And if you really want to diagnose
errors, you can throw an exception.
Alberto.
-----Original Message-----
From: Jamey Kirby [mailto:xxxxx@storagecraft.com]
Sent: Wednesday, October 23, 2002 11:57 AM
To: NT Developers Interest List
Subject: [ntdev] Re: C++ in kernel. was Re: Batch file for Visual Studio
build,
Let’s not forget about those constructors and destructors that have no
return value. This makes life real easy; NOT!
Jamey
-----Original Message-----
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com] On Behalf Of David J. Craig
Sent: Wednesday, October 23, 2002 8:04 AM
To: NT Developers Interest List
Subject: [ntdev] Re: C++ in kernel. was Re: Batch file for Visual Studio
build,
C has no advantage over C++ when it comes to good code design or
efficiency. That is in the hands of the developer.
This is false in the first sentence, but the second is always true. If
you have a group of junior device driver developers, the limited
environment in “C” can help keep them from shooting themselves in the
foot. Cobol is even better at allowing almost anyone with minimal
skills to be a coder, though it takes a long time for them to become a
programmer.
My point is that people seem to be saying that if their file is
labeled
“.cpp” there code will somehow be tainted and neither clear or
efficient. Where do you draw the feature line at? Since c++ is a
super-set of c, which features are the ones that don’t belong in the
kernel? You can’t tell me none of them.
I use C++ in my device drivers because it makes sense. I use the .cpp
extensions even if the code is still pure “C” because the latest
Microsoft compilers do a better job of catching errors. Since the stack
is so limited in kernel mode, the full capabilities of C++ exception
handling don’t belong and aren’t supported by Microsoft. Passing large
data items on the stack is another bad idea in either “C” or “C++”.
Does that mean if I prefer the power/features of
a c++ compiler then by definition I don’t understand the language? I
have
met so many C programmers that had zero clue about how the language
works
or describes what is happening in the hardware. One of my favorite
arguments that I heard in person: “There are no dynamic arrays in C”.
I
spent hours trying to explain that “pointer” and “array”
interchangeable. He left unconvinced, but said he would study it
further
(he said it was a non portable compiler exploit or some nonsense).
I have been in environments, government, where you are give some people
who the “system” says are programmers. You have a job to do and they
are your resources. Sometimes you just have to apply the KISS principle
even in your choice of language. Luckily in today’s civilian job
environment, you can get rid of the non-performers, but it much more
difficult in the military or civil service. It takes a supervisor at
least a year to get a civilian fired for incompetence and most
supervisors don’t have that much time to devote to that. It is easier
to get the person promoted or transferred.
----- Original Message -----
From: “Justin Frodsham”
To: “NT Developers Interest List”
Sent: Wednesday, October 23, 2002 7:25 AM
Subject: [ntdev] Re: C++ in kernel. was Re: Batch file for Visual Studio
build,
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