egghelp/eggheads community

Module in C++

2005-07-30T15:05:45-04:00

It would be cool to have it all in C++ so you can make 1 class which is your module. That would eliminate alot of worries.

Obviously it would take a very long time. And I can understand why the chap wants to use C++ as it is the 2nd programming language I learned and is easier to understand when you know only OO-languages. Still now knowing C my view on C++ has changed quite a bit.

Statistics: Posted by Galadhrim — Sat Jul 30, 2005 3:05 pm

Module in C++

2005-07-30T12:26:53-04:00

well obviously the guy's doing this for the sake of learning... it would be a completely different matter if eggdrop was built from the ground up in C++

C++ has been, is, and will be (at least in the foreseeable future) the programming language of choice for building the most important software products

Statistics: Posted by demond — Sat Jul 30, 2005 12:26 pm

Module in C++

2005-07-30T11:33:23-04:00

everything is coded in C would take a real long while to make your C++ module to work with it. Believe me I tried, it doesnt help performance either...

Statistics: Posted by Galadhrim — Sat Jul 30, 2005 11:33 am

Module in C++

2005-07-29T00:03:51-04:00

just out of curiousity, what are you coding in C++ in that module?

Statistics: Posted by demond — Fri Jul 29, 2005 12:03 am

Module in C++

2005-07-28T04:57:33-04:00

Aye! Thx for your help!

Statistics: Posted by Kappa007 — Thu Jul 28, 2005 4:57 am

Module in C++

2005-07-28T00:31:42-04:00

no, you can't bind with spaces, eggdrop splits the server input long before it comes to your bind

Statistics: Posted by demond — Thu Jul 28, 2005 12:31 am

Module in C++

2005-07-27T23:35:04-04:00

That's what I initially did, changing CC to g++. Didn't work. But I did not use ld -Bshareable. You think it'll "just work" then?
Would be nice, but then again I just got it working quite smooth with 2 object files

Wouldn't help much anyway cause I only got few functions to share between C and C++.

Unless there's the posibility to bind commands with spaces:

Code:

{"!trigger func1",           "",    (Function) func1,    NULL}{"!trigger func2",           "",    (Function) func2,    NULL}

But no matter if i escape the space between trigger and func it did not work (yet), only gives me "Ambiguous command.". So I'm about to use one function and parse the input there.

Statistics: Posted by Kappa007 — Wed Jul 27, 2005 11:35 pm

Module in C++

2005-07-27T22:29:47-04:00

well the thing is that eggdrop modules import global functions and vars via #define's in module.h which are actually indexes in a global table, so the extern "C" trick doesn't really apply here; besides, from the output you pasted I've got the feeling you somehow messed up your Makefile, you should link with ld -Bshareable, not with g++ -o; try to compile woobie.mod, adding some C++ stuff in woobie.c and making just one change in woobie's original Makefile: add CC=g++

hmm you are under cygwin... nevermind

Statistics: Posted by demond — Wed Jul 27, 2005 10:29 pm

Module in C++

2005-07-27T21:10:24-04:00

The doc does not say anything about C++

And that already was the exact error:

Code:

g++ -o ../../../mymod.dll ../mymod.o -L/usr/local/lib -ltcl8.4 -lm  /usr/lib/binmode.o../../mymod.o: In function `TestCommand'src/mod/mymod/mymod.cpp:54: undefined reference to `_dprintf'

If you add something like modules.o to your linker you get

Code:

../../modules.o: In function `module_load':/devel/eggdrop1.6.17/src/modules.c:791: undefined reference to `_H_load'/devel/eggdrop1.6.17/src/modules.c:791: undefined reference to `_check_tcl_loadunld'../../modules.o: In function `module_unload':/devel/eggdrop1.6.17/src/modules.c:819: undefined reference to `_H_unld'/devel/eggdrop1.6.17/src/modules.c:819: undefined reference to `_check_tcl_loadunld'../../modules.o: In function `add_hook':/devel/eggdrop1.6.17/src/modules.c:1027: undefined reference to `__rfc_ncasecmp'/devel/eggdrop1.6.17/src/modules.c:1026: undefined reference to `__rfc_casecmp'/devel/eggdrop1.6.17/src/modules.c:1028: undefined reference to `__rfc_tolower'/devel/eggdrop1.6.17/src/modules.c:1029: undefined reference to `__rfc_toupper'/devel/eggdrop1.6.17/src/modules.c:1037: undefined reference to `_block_dns_hostbyip'/devel/eggdrop1.6.17/src/modules.c:1041: undefined reference to `_block_dns_ipbyhost'../../modules.o: In function `del_hook':/devel/eggdrop1.6.17/src/modules.c:1100: undefined reference to `_block_dns_hostbyip'/devel/eggdrop1.6.17/src/modules.c:1104: undefined reference to `_block_dns_ipbyhost'...

Seems it is not that easy to have it just compile ALL in C++.

I worked around that now by compiling the stuff that interacts with eggdrop directly (start, close, command functions) in C.
The other stuff i compile in C++ and then just link the stuff to one lib.
Seems to work for now.
Just need some ugly C functions to pass the input data to the classes *shrug*

Regards

Statistics: Posted by Kappa007 — Wed Jul 27, 2005 9:10 pm

Module in C++

2005-07-27T19:56:41-04:00

post the exact error log (using

Code:

 tag, not [quote]) and RTFM (doc/MODULES)

Statistics: Posted by demond — Wed Jul 27, 2005 7:56 pm

Module in C++

2005-07-27T18:46:04-04:00

Actually that only helped at first glance

undefined reference to `dprintf(int, char const*, ...)'

Now i get that error while trying to link

If I put a extern "C" around the C include stuff I get "undefined reference to `_dprintf'"
Adding modules.o to the linking process gives me a whole list of undefined references

Help pls anyone

Statistics: Posted by Kappa007 — Wed Jul 27, 2005 6:46 pm

Module in C++

2005-07-27T06:40:25-04:00

Yeah. Just that i'll have to undecorate the stuff from module.h or something
Anyway if that is the recommended way no problem

Statistics: Posted by Kappa007 — Wed Jul 27, 2005 6:40 am

Module in C++

2005-07-26T22:49:56-04:00

Code:

extern "C" {// your C function prototypes here}

Statistics: Posted by demond — Tue Jul 26, 2005 10:49 pm

Module in C++

2005-07-26T22:40:51-04:00

#undef dprintf
extern "C" void dprintf(int idx, const char * text, ...);

After the modules include seems to fix it
But guess i'd have to do that for all functions :/

Is that the correct work-around at all or is there some better way?

Statistics: Posted by Kappa007 — Tue Jul 26, 2005 10:40 pm

Module in C++

2005-07-26T22:09:36-04:00

Hey all,
i was wondering if it is possible to do a module in C++ not in C (i suspect it is - i found one on the web but it's kinda odd )
I'm getting wicked errors when i try to compile my module in C++....
Like dprintf() having too many arguments etc. I suspect it's the scary module.h who is causing that

Anyone got experience with that?
Any template/tutorial/help?

Thanks in advance

Statistics: Posted by Kappa007 — Tue Jul 26, 2005 10:09 pm