Hey everyone,
I noticed that unlike C#, managed C++ still uses headers and implementation
files. My question is, is there any consensus of where to put the
implementation of the managed class?
In my project, I put everything in the header file. I don't see the need to
put it in a seperate implementation file.
Any thoughts?
Thanks,
--
Tom Tempelaere.
15  1222 
"TT (Tom Tempelaere)" <_|\|_0$P@|/\|titi____AThot mailD.Tcom|/\|@P$0_|\|_>
wrote in message news:29******** *************** ***********@mic rosoft.com... Hey everyone,
I noticed that unlike C#, managed C++ still uses headers and
implementation
files. My question is, is there any consensus of where to put the
implementation of the managed class?
In my project, I put everything in the header file. I don't see the need
to
put it in a seperate implementation file.
Any thoughts?
It's just a question of style.
Putting all your member definitions in the header file makes them implicitly
inline, but given that most inlining is done by the JIT and happens
regardless of whether the function was marked as inline, it's not clear that
that's really a significant factor.
It's likely the case that putting all the implementation in the header file
will result in slower build times as the project gets larger - that's one
advantage the old header file/implementation file technique still has over
the C#/Java all in one file model.
-cd
"TT (Tom Tempelaere)" <_|\|_0$P@|/\|titi____AThot mailD.Tcom|/\|@P$0_|\|_>
wrote in message news:29******** *************** ***********@mic rosoft.com... In my project, I put everything in the header file. I don't see the need
to
put it in a seperate implementation file.
It's not something that I use, but I _think_ that WinForms puts code in
headers too. So, if you want a precedent, and one from inside the big house,
there you go. :-)
Now I know that the language allows it, and the distinction between source
and header that was so clear to me in the K&R days is not so black and white
in modern C++, but it looks a tad strange to me. Just my opinion ...
Regards,
Will
Hi Carl,
"Carl Daniel [VC++ MVP]" wrote: "TT (Tom Tempelaere)" <_|\|_0$P@|/\|titi____AThot mailD.Tcom|/\|@P$0_|\|_>
wrote in message news:29******** *************** ***********@mic rosoft.com... Hey everyone,
I noticed that unlike C#, managed C++ still uses headers and
implementation
files. My question is, is there any consensus of where to put the
implementation of the managed class?
In my project, I put everything in the header file. I don't see the need
to
put it in a seperate implementation file.
Any thoughts?
It's just a question of style.
Putting all your member definitions in the header file makes them implicitly
inline, but given that most inlining is done by the JIT and happens
regardless of whether the function was marked as inline, it's not clear that
that's really a significant factor.
I see. But, since all methods are exported because it is a library (in my
project it is), I don't think it really matters anymore.
It's likely the case that putting all the implementation in the header file
will result in slower build times as the project gets larger - that's one
advantage the old header file/implementation file technique still has over
the C#/Java all in one file model.
Tom.
Hi William,
"William DePalo [MVP VC++]" wrote: "TT (Tom Tempelaere)" <_|\|_0$P@|/\|titi____AThot mailD.Tcom|/\|@P$0_|\|_>
wrote in message news:29******** *************** ***********@mic rosoft.com... In my project, I put everything in the header file. I don't see the need
to
put it in a seperate implementation file.
It's not something that I use, but I _think_ that WinForms puts code in
headers too. So, if you want a precedent, and one from inside the big house,
there you go. :-)
YES! :D
Now I know that the language allows it, and the distinction between source
and header that was so clear to me in the K&R days is not so black and white
in modern C++, but it looks a tad strange to me. Just my opinion ...
Well, since I'm used to coding .NET in C#, I kind of dislike going back to
the header/implementation model. But managed C++ is probably more than just
C# so the model is probably still useful. I think I will be convinced once I
start mixing managed and unmanaged code. This is the actual purpose of my
project in managed C++: use of unmanaged C++-libraries under the hood.
BTW: Do we have a shorter name/tag for managed C++, like MC++ or so?
Thanks,
Tom Tempelaere.
"William DePalo [MVP VC++]" <wi***********@ mvps.org> wrote in message
news:OR******** ******@TK2MSFTN GP12.phx.gbl...
It's not something that I use, but I _think_ that WinForms puts code in
headers too. So, if you want a precedent, and one from inside the big
house, there you go. :-)
Now I know that the language allows it, and the distinction between source
and header that was so clear to me in the K&R days is not so black and
white in modern C++, but it looks a tad strange to me. Just my opinion
...
Regards,
Will
You're correct. That's exactly where the implementing code is placed in a
..NET Windows Form project, much to the displeasure of purists (some of whom
have been very vocal about it).
AAMF, it remains that way in the VS 2005 beta, so it looks not to be a
temporary thing, but possibly a new trend coming from the "big house".
--
Peter [MVP Visual Developer]
Jack of all trades, master of none.
"TT (Tom Tempelaere)" <_|\|_0$P@|/\|titi____AThot mailD.Tcom|/\|@P$0_|\|_>
wrote in message news:36******** *************** ***********@mic rosoft.com... BTW: Do we have a shorter name/tag for managed C++, like MC++ or so?
Yes, at least in this group MC++ stands for "Managed Extensions for C++" or
just "managed C++".
That's the good news. The bad news is that the .Net targetting dialect (my
word) of C++ is getting a new name to go with new syntax in VS.Net 2005.
It's short name is usually written as C++/CLI.
Just by the way, at some point in the future C++/CLI will be an ECMA
standardized language and sometime before we all retire <g> it should be
standardized by ISO as well.
Regards,
Will
..
"Peter van der Goes" <p_**********@t oadstool.u> wrote in message
news:eF******** *****@TK2MSFTNG P14.phx.gbl... You're correct. That's exactly where the implementing code is placed in a
.NET Windows Form project, much to the displeasure of purists (some of
whom have been very vocal about it).
Count me in that group. Or in the "dinosaurs" group of people who learned
_the man's_ language from the famous tome by K&R with the white cover and
the big blue C. :-)
Regards,
Will
Peter van der Goes wrote: You're correct. That's exactly where the implementing code is placed
in a .NET Windows Form project, much to the displeasure of purists
(some of whom have been very vocal about it).
AAMF, it remains that way in the VS 2005 beta, so it looks not to be a
temporary thing, but possibly a new trend coming from the "big house".
Then there is something I don't understand : I believed that part of the
"C++ come back" in VS2005 was due to the fact that MS realized that the
compilation model of C# and VB.NET didn't scale well, and that the
header/implementation separation was still the only way to keep build time
to grow exponentially on large projects. I am totally wrong here?
Arnaud
MVP - VC
> You're correct. That's exactly where the implementing code is placed in a .NET Windows Form project, much to the displeasure of purists (some of whom
have been very vocal about it).
Nothing prevents you from manually cut and pasting those event handlers
to the .cpp file, though. The form designer will still be working.
However, you might get into trouble in the long run, like if you double
click on an event in the designer. I would certainly prefer if the final
release had the option of putting the event handlers to the .cpp file.
At least it should tolarete if we do that manually.
Tom This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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