* Windows can use cpp in c code but in linux ?? I dont know how. @ 2004-09-30 10:50 mojtaba mahdavi 2004-10-01 1:49 ` Suciu Flavius 0 siblings, 1 reply; 5+ messages in thread From: mojtaba mahdavi @ 2004-09-30 10:50 UTC (permalink / raw) To: linux-c-programming 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 ???? ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Windows can use cpp in c code but in linux ?? I dont know how. 2004-09-30 10:50 Windows can use cpp in c code but in linux ?? I dont know how mojtaba mahdavi @ 2004-10-01 1:49 ` Suciu Flavius 2004-10-02 5:47 ` mojtaba mahdavi 0 siblings, 1 reply; 5+ messages in thread From: Suciu Flavius @ 2004-10-01 1:49 UTC (permalink / raw) To: linux-c-programming Hi, Your solution is a partial solution, because you "migration" require also the C++ library to be linked. First, of course it's possible ;) Second, under windoze you compiler it's smart (or dumb enought) to link automaticly with the c++ library. Under Linux, gcc it's a pure c compiler, it never link agains c++ library, so "the misterious" messages refer to the missing c++ library because you code do references for operator new and delete ;) To solve this is easy, link with the c++ library: -lstdc++ gcc a.c mylib.a -lstdc++ Third, welcom in the Linux world :) Regards, and don't forget, under Linux EVERYTHING is possible :D mojtaba mahdavi wrote: > 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 ???? > - > To unsubscribe from this list: send the line "unsubscribe linux-c-programming" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Windows can use cpp in c code but in linux ?? I dont know how. 2004-10-01 1:49 ` Suciu Flavius @ 2004-10-02 5:47 ` mojtaba mahdavi 2004-10-02 15:37 ` Suciu Flavius 0 siblings, 1 reply; 5+ messages in thread From: mojtaba mahdavi @ 2004-10-02 5:47 UTC (permalink / raw) To: Suciu Flavius; +Cc: linux-c-programming Hi. Thanks for your reply. you told me to use following command. >gcc a.c mylib.a -lstdc++ Now. who is the compiler. C or C++ ? If C ? I got what I wanted. If C++ ? I do not want it to compile my code. Since I want to use C as my compiler not C++. Sincerely all. mahdavi. On Thu, 30 Sep 2004 18:49:53 -0700, Suciu Flavius <suciuflavius@tiscali.de> wrote: > Hi, > > Your solution is a partial solution, because you "migration" require > also the C++ library to be linked. > > First, of course it's possible ;) > > Second, under windoze you compiler it's smart (or dumb enought) to link > automaticly with the c++ library. > > Under Linux, gcc it's a pure c compiler, it never link agains c++ > library, so "the misterious" messages refer to the missing c++ library > because you code do references for operator new and delete ;) > > To solve this is easy, link with the c++ library: -lstdc++ > > gcc a.c mylib.a -lstdc++ > > Third, welcom in the Linux world :) > > Regards, and don't forget, under Linux EVERYTHING is possible :D > > > > > mojtaba mahdavi wrote: > > 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 ???? > > - > > To unsubscribe from this list: send the line "unsubscribe linux-c-programming" in > > the body of a message to majordomo@vger.kernel.org > > More majordomo info at http://vger.kernel.org/majordomo-info.html > > > > - > To unsubscribe from this list: send the line "unsubscribe linux-c-programming" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Windows can use cpp in c code but in linux ?? I dont know how. 2004-10-02 5:47 ` mojtaba mahdavi @ 2004-10-02 15:37 ` Suciu Flavius 2004-10-02 6:39 ` mojtaba mahdavi 0 siblings, 1 reply; 5+ messages in thread From: Suciu Flavius @ 2004-10-02 15:37 UTC (permalink / raw) To: linux-c-programming GCC - GNU C Compiler G++ - GNU C++ Compiler So, you are using now the pure C compiler but extra linking with the c++ library. Regards mojtaba mahdavi wrote: > Hi. > > Thanks for your reply. > you told me to use following command. > > >>gcc a.c mylib.a -lstdc++ > > > Now. who is the compiler. C or C++ ? > If C ? I got what I wanted. > If C++ ? I do not want it to compile my code. Since I want to use C as > my compiler not C++. > > Sincerely all. > > mahdavi. > > On Thu, 30 Sep 2004 18:49:53 -0700, Suciu Flavius > <suciuflavius@tiscali.de> wrote: > >>Hi, >> >>Your solution is a partial solution, because you "migration" require >>also the C++ library to be linked. >> >>First, of course it's possible ;) >> >>Second, under windoze you compiler it's smart (or dumb enought) to link >>automaticly with the c++ library. >> >>Under Linux, gcc it's a pure c compiler, it never link agains c++ >>library, so "the misterious" messages refer to the missing c++ library >>because you code do references for operator new and delete ;) >> >>To solve this is easy, link with the c++ library: -lstdc++ >> >>gcc a.c mylib.a -lstdc++ >> >>Third, welcom in the Linux world :) >> >>Regards, and don't forget, under Linux EVERYTHING is possible :D >> >> >> >> >>mojtaba mahdavi wrote: >> >>>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 ???? >>>- >>>To unsubscribe from this list: send the line "unsubscribe linux-c-programming" in >>>the body of a message to majordomo@vger.kernel.org >>>More majordomo info at http://vger.kernel.org/majordomo-info.html >>> >> >>- >>To unsubscribe from this list: send the line "unsubscribe linux-c-programming" in >>the body of a message to majordomo@vger.kernel.org >>More majordomo info at http://vger.kernel.org/majordomo-info.html >> > > - > To unsubscribe from this list: send the line "unsubscribe linux-c-programming" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Windows can use cpp in c code but in linux ?? I dont know how. 2004-10-02 15:37 ` Suciu Flavius @ 2004-10-02 6:39 ` mojtaba mahdavi 0 siblings, 0 replies; 5+ messages in thread From: mojtaba mahdavi @ 2004-10-02 6:39 UTC (permalink / raw) To: Suciu Flavius; +Cc: linux-c-programming Thanks to all My problem has been solved. yours sincerely. mahdavi. On Sat, 02 Oct 2004 08:37:56 -0700, Suciu Flavius <suciuflavius@tiscali.de> wrote: > GCC - GNU C Compiler > G++ - GNU C++ Compiler > > So, you are using now the pure C compiler but extra linking with the c++ > library. > > Regards > > > > > mojtaba mahdavi wrote: > > Hi. > > > > Thanks for your reply. > > you told me to use following command. > > > > > >>gcc a.c mylib.a -lstdc++ > > > > > > Now. who is the compiler. C or C++ ? > > If C ? I got what I wanted. > > If C++ ? I do not want it to compile my code. Since I want to use C as > > my compiler not C++. > > > > Sincerely all. > > > > mahdavi. > > > > On Thu, 30 Sep 2004 18:49:53 -0700, Suciu Flavius > > <suciuflavius@tiscali.de> wrote: > > > >>Hi, > >> > >>Your solution is a partial solution, because you "migration" require > >>also the C++ library to be linked. > >> > >>First, of course it's possible ;) > >> > >>Second, under windoze you compiler it's smart (or dumb enought) to link > >>automaticly with the c++ library. > >> > >>Under Linux, gcc it's a pure c compiler, it never link agains c++ > >>library, so "the misterious" messages refer to the missing c++ library > >>because you code do references for operator new and delete ;) > >> > >>To solve this is easy, link with the c++ library: -lstdc++ > >> > >>gcc a.c mylib.a -lstdc++ > >> > >>Third, welcom in the Linux world :) > >> > >>Regards, and don't forget, under Linux EVERYTHING is possible :D > >> > >> > >> > >> > >>mojtaba mahdavi wrote: > >> > >>>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 ???? > >>>- > >>>To unsubscribe from this list: send the line "unsubscribe linux-c-programming" in > >>>the body of a message to majordomo@vger.kernel.org > >>>More majordomo info at http://vger.kernel.org/majordomo-info.html > >>> > >> > >>- > >>To unsubscribe from this list: send the line "unsubscribe linux-c-programming" in > >>the body of a message to majordomo@vger.kernel.org > >>More majordomo info at http://vger.kernel.org/majordomo-info.html > >> > > > > - > > > > To unsubscribe from this list: send the line "unsubscribe linux-c-programming" in > > the body of a message to majordomo@vger.kernel.org > > More majordomo info at http://vger.kernel.org/majordomo-info.html > > > > - > To unsubscribe from this list: send the line "unsubscribe linux-c-programming" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2004-10-02 15:37 UTC | newest] Thread overview: 5+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2004-09-30 10:50 Windows can use cpp in c code but in linux ?? I dont know how mojtaba mahdavi 2004-10-01 1:49 ` 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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