Re: [Boost-users] program_options

12 Nov 2007


      You must check that the required argument is specified:

if( !varmap.count("a") )
{
    cerr << "Argument 'a' missing!" << endl;
    return 1;
}

/Mikko

swapna wrote:
...
How to include all options as mandatory ones.
ex: test.exe -a "address" -b "BW"
Both -a and -b should be specified.It is manadatory
How to make it mandatory using program_options in boost.
*/Benoit Sigoure /* wrote:
On Nov 12, 2007, at 6:56 AM, brad wrote:
     > Benoit Sigoure wrote:
     >> Hello Brad,
     >>
     >> On Nov 10, 2007, at 1:10 AM, Brad wrote:
     >>
     >>> I am trying to make a package called visual python, but I keep
     >>> getting
     >>> this error. I am using fedora 8 and have
     >>>
     >>> Linking cvisualmodule.la ...
     >>> make[1]: *** [cvisualmodule.la] Error 1
     >>> make[1]: Leaving directory
    `/home/brad/Download/visual-4.beta16/src'
     >>> make: *** [all-recursive] Error 1
     >>>
     >>> The key reason I get this error is this line right here...
     >>> /usr/bin/ld: cannot find -lboost_thread
     >>>
     >>> I looked online saw that I could try --LDFLAGS-L[path], where
     >>> path is
     >>> the path to libboost_thread.so and libboost_thread.a. Those
     >>> files don't
     >>> exist on my computer and I have boost-1.34.1-5.fc8 and
     >>> boost-devel-1.34.1-5.fc8. I did however find
     >>> /usr/lib/libboost_thread-mt.so,
     >>> /usr/lib/libboost_thread-mt.so.1.34.1, and /usr/lib/
     >>> libboost_thread-mt.so.3.
     >>
     >> As far as I know (someone correct me if I'm wrong) boost_threads
     >> always comes in a `-mt' flavor (I think it's obvious why) so you
     >> must use -lboost_thread-mt instead.
     >
     > I did not make the config file for this but I need to install it.
     > Is there some kind of argument I can pass during configure to fix
     > this?
I don't understand what you mean, which configure are you talking
    about? The configure of Boost itself or that of the project you're
    trying build? For Boost, just do a standard install, but since you
    already have the file /usr/lib/libboost_thread-mt.so, you don't need
    to worry about that. For the project you're trying to build, if it
    uses the autotools (that is, its configure script has been generated
    by autoconf) use ./configure LIBS=-lboost_thread-mt
    Otherwise, if none of this works, you'll just have to hack the build
    system of that project so that it uses -lboost_thread-mt where needed.
-- 
    Benoit Sigoure aka Tsuna
    EPITA Research and Development Laboratory
_______________________________________________
    Boost-users mailing list
    Boost-users@lists.boost.org
    http://lists.boost.org/mailman/listinfo.cgi/boost-users
------------------------------------------------------------------------
Share files, take polls, and discuss your passions - all under one roof. 
Click here. 
http://in.rd.yahoo.com/tagline_groups_8/*http://in.promos.yahoo.com/groups
------------------------------------------------------------------------
_______________________________________________
Boost-users mailing list
Boost-users@lists.boost.org
http://lists.boost.org/mailman/listinfo.cgi/boost-users
-- 
:: Mikko Vainio  tel + 358 2 215 4600
:: Structural Bioinformatics Laboratory
:: Department of Biochemistry and Pharmacy
:: Abo Akademi University, Tykistokatu 6A, FI-20520 Turku Finland