From mboxrd@z Thu Jan 1 00:00:00 1970 From: mojtaba mahdavi Subject: Windows can use cpp in c code but in linux ?? I dont know how. Date: Thu, 30 Sep 2004 14:20:55 +0330 Sender: linux-c-programming-owner@vger.kernel.org Message-ID: <36a2bb3d04093003501d1b58a7@mail.gmail.com> Reply-To: mojtaba mahdavi Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: List-Id: Content-Type: text/plain; charset="us-ascii" To: linux-c-programming@vger.kernel.org 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 ????