Re: [Boost-users] How do you compile Boost C++ code in Ubuntu?

Subject: Re: [Boost-users] How do you compile Boost C++ code in Ubuntu?
From: Giovanni (giovanni.ong_at_[hidden])
Date: 2013-02-08 13:06:28

Greetings All,
  Thank you so much, Mr. Maddock.

  I was able to compile my program successfully and resolve my linking
errors with your help.

  Also, thank you very much, Mr. Loskot! I appreciate all the precious
time that you have spent to help me out.

  Have an awesome weekend!

Regards

On Fri, Feb 8, 2013 at 8:20 AM, John Maddock <boost.regex_at_[hidden]> wrote:
> It is a quirk of GCC that the libraries used by a source file must appear
> *after* the source file.  Nothing to do with Boost really...
>
> John.

On Fri, Feb 8, 2013 at 9:45 AM, Mateusz Loskot <mateusz_at_[hidden]> wrote:
> On 8 February 2013 16:03, Giovanni <giovanni.ong_at_[hidden]> wrote:
>>   I followed your instructions to link the libraries, with the
>> "-lboost_filesystem -lboost_system" sequence of linking the
>> aforementioned Boost C++ libraries.
>>
>>   However, I cannot resolve the linking error. I have included a
>> snippet from my Terminal session below.
>
> No idea what's wrong really and have no time to investigate it.
> But, I've done quick test on Ubuntu 10.04 using  Boost 1.40
> installed from its packages and small sample from this book
> http://en.highscore.de/cpp/boost/errorhandling.html
> and it worked for me:
>
> Here is my console log:
>
> mloskot_at_vb-ubuntu104-x64:~/tmp$ /usr/bin/lsb_release -d
> Description: Ubuntu 10.04.4 LTS
>
> mloskot_at_vb-ubuntu104-x64:~/tmp$ cat bsystem.cpp
> #include <boost/system/error_code.hpp>
> #include <iostream>
> #include <string>
>
> class application_category :
>   public boost::system::error_category
> {
> public:
>   const char *name() const { return "application"; }
>   std::string message(int ev) const { return "error message"; }
> };
>
> application_category cat;
>
> int main()
> {
>   boost::system::error_code ec(14, cat);
>   std::cout << ec.value() << std::endl;
>   std::cout << ec.category().name() << std::endl;
> }
>
> mloskot_at_vb-ubuntu104-x64:~/tmp$ g++ -L/usr/lib -lboost_system bsystem.cpp
> mloskot_at_vb-ubuntu104-x64:~/tmp$ ./a.out
> 14
> application
>
> mloskot_at_vb-ubuntu104-x64:~/tmp$ ldd ./a.out |grep boost
> libboost_system.so.1.40.0 => /usr/lib/libboost_system.so.1.40.0
> (0x00007f2df87b6000)
>
>
> Perhaps something has changed in later versions.
> I have no time to dig it deeper, sorry.
>
> Best regards,