C++ external first steps help
hello,
this morning i’ve test to make a C++ external with maxcpp ( in order to use Gecode later…)
http://code.google.com/p/maxcpp/
i’ve copy the maxcpp5.h in my xcode project (C++ command line tool)
i’ve include it to main.cpp
but when i try to compile the first exemple Xcode apparently don’t find "ext.h"
that’s weird because i’ve add MaxAPI.framework to my project…
if anyone has a hint for me it will be welcome :)
i’m not a high level developer so… be kind to me plz
Pierre
Hello,
thank you a lot vanille
I’m os X.7.3 / Xcode 4.3.2 / Max 6.0.4
I can’t compile it, i’ve tried some change but i’m stack on " #include
:s
hard…
ok i’ve fix the ‘new’ thing but there is still issues:
Undefined symbols for architecture i386:
"_common_symbols_init", referenced from:
MaxCpp5
ld: symbol(s) not found for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)
anyone?
I’m going mad with it…
Does anyone could send me a .xcodeproj of a simple C++ external? It would be really nice :)
I think it will be the best solution…
Pierre
thank you vanille, i will look at commonsyms.c
great explainations , i think it will help me
I use maxcpp with max 6 SDK , is it possible or am I suppose to use it with max 5 SDK?
Pierre
i was finaly able to compile it, i’ve made a really stupid mistake (that i will keep secret) but now it works :)
just a little question:
is it possible to add methods that don’t need selector?
example.mxo "doesn’t understand" int or float without selector
thank you a lot for your time vanille, you are the only one who help me, i really appreciate
I have work on C external yesterday and lot of things are more clear now ( i’ve reread the begining of the SDK :) …. )
I really need to use Gecode that’s why i’m going C++ now, i’ve start C only 2 weeks ago and even if i’m working hard it takes time to become "natural" and it takes even more time with C++ that’s looks harder than C!!! so excuse the noobish questions plz…
have a good day
For int and float register_method, I posted an answer here :
http://cycling74.com/forums/topic.php?id=37152
I also have an open question here, http://cycling74.com/forums/topic.php?id=39039
you can make C++ external a different way:
1. change :
if (x = (t_simplemax *)object_alloc((t_class *) simplemax_class)) {
//add in pointer to t_class for c plus plus – only line changed!
this is in the new declaration at the bottom of the file. So you are forcing simplemax_class to be a t_class pointer. Somehow this allows you to use C++ now instead of C in your code.
2. change: simplemax.c to simplemax.cpp
3. compile!
my Xcode project is downloadable at:
http://www.eecs.qmul.ac.uk/~andrewr/software/simplecplusplus.zip
I’ve done a few things in C++ – using classes etc and never had any problems. Thanks Jeremy Bernstein for the tip.
great,I will try that!
thank you a lot
Pierre
Hi all,
I think I’m having the same trouble as FREEPOULITE,
I’m in OSX 10.9, Xcode 5.0.2, maxcpp6.h
I get this compile error:
Undefined symbols for architecture x86_64:
"_common_symbols_init", referenced from:
MaxCpp6::makeMaxClass(char const*) in maxcpp-test.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
anyone can help ?
thanks !
hope it’s okay to reply here, but if you ever get something like:
parse error, unknown type class
it’s because there’s a mix and match of
myexternalobject.c
and .cpp code being added
hopefully the (t_class*) cast idea above works out for anyone doing c++ externals. you could of course use faust to do this