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From: mojtaba mahdavi <mahdavi110@gmail.com>
To: linux-c-programming@vger.kernel.org
Subject: Windows can use cpp in c code but in linux ?? I dont know how.
Date: Thu, 30 Sep 2004 14:20:55 +0330	[thread overview]
Message-ID: <36a2bb3d04093003501d1b58a7@mail.gmail.com> (raw)

Hi all.

I am a windows programmer and want to migrate my codes to linux. 

My problem is as followes.

I want to use cpp (File1.cpp) codes in c (File2.c) codes. 

in windows I have done following and it is ok. 

1- I wrote a cpp code (Wrap.cpp) that wraps my cpp code (File1.cpp) and 
compiled it using cpp compiler. 
( my strategy: for every method I wrote a c function that calls the methode. 
each function gets a void * to the class handle and ... ) 

2- I exported my wrapper functions as C interfaces using extern "C". (Wrap.h) 

3- in File2.c I used wrap.h and compiled it as a c code. every thing is fine. 

Now I have trouble with linux to do that (because I am a newbie in linux). 

at first, is it possible in linux ?? ( I think it must be possible ).

secondly, How do I it. 

actually I have done above in linux but I got some error message. 

My strateghy is as follows. 

1- complie file1.cpp and wrap.cpp using gcc and making file1.o and
wrap.o. it is ok.
2- making library using ar command. it is ok. (mylib.a) 
3- compile and link file2.c with mylib.a ..???????!!!!!!!! 
	this generates an error. 
		it says : 

./libmylib.a(wrap.o)(.text+0xc):wrap.cpp: undefined reference to `
___gxx_personality_sj0'
./libmylib.a(wrap.o)(.text+0x44):wrap.cpp: undefined reference to
`operator new(unsigned)'
./libmylib.a(wrap.o)(.text+0x85):wrap.cpp: undefined reference to
`operator delete(void*)'
./libmylib.a(wrap.o)(.text+0xeb):wrap.cpp: undefined reference to
`operator delete(void*)'
collect2: ld returned 1 exit status


NOW. 

what should I do ????

             reply	other threads:[~2004-09-30 10:50 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-09-30 10:50 mojtaba mahdavi [this message]
2004-10-01  1:49 ` Windows can use cpp in c code but in linux ?? I dont know how Suciu Flavius
2004-10-02  5:47   ` mojtaba mahdavi
2004-10-02 15:37     ` Suciu Flavius
2004-10-02  6:39       ` mojtaba mahdavi

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