Re: [boost] A grep like boost::iostreams filter.

From: Emre Turkay (emreturkay_at_[hidden])
Date: 2008-02-07 03:31:20

Hi Paul, I have found a Visual Studio 2005 installed windows PC and tried to
compile. The first one was apparently failing because of the problem I
mentioned before. However, the last one compiles and runs fine for both
release and debug targets.

I used Boost Consulting's BoostPro 1.34.1 installer. My main.cpp file is
below, you need to change the full_path_to_the_main.cpp.

HTH,

emre

int main()

{

boost::iostreams::grep_filter filter("main");

boost::iostreams::filtering_istream is;

is.unsetf(std::ios::skipws);

is.push(filter);

is.push(boost::iostreams::file_source("full_path_to_the_main.cpp"));

std::copy(std::istream_iterator<char>(is),

std::istream_iterator<char>(),

std::ostream_iterator<char>(std::cout));

}

On Feb 6, 2008 11:26 AM, Paul A Bristow <pbristow_at_[hidden]> wrote:

>
>
> >-----Original Message-----
> >From: boost-bounces_at_[hidden]
> >[mailto:boost-bounces_at_[hidden]] On Behalf Of Emre Turkay
> >Sent: 06 February 2008 07:23
> >To: boost_at_[hidden]
> >Subject: Re: [boost] A grep like boost::iostreams filter.
> >
> >Hi Paul,
> >
> >I don't have a Visual C compiler around but the link error you got is
> >probably not related with the grep filter.
> >
> >For the run time bug, one of my friends had the same
> >experience and we have
> >found out that visual c cannot handle iterators of the empty
> >strings. So I
> >made a workaround for it, I don't know if it works, since I
> >couldn't try it with VC yet.
> >
> >Can you download, give it a try and let me know if it works for you?
> >
> >http://emreturkay.googlepages.com/grep.hpp
>
> Sadly, this gives me the same result in both debug (link failure - missing
> include?) and release (crashes).
>
> :-(
>
> Paul
>
> Linking...
> demo_grep.obj : error LNK2019: unresolved external symbol "public: void
> __thiscall boost::re_detail::raw_storage::resize(unsigned
> int)" (?resize_at_raw_storage_at_re_detail_at_boost@@QAEXI_at_Z) referenced in
> function "public: void * __thiscall
> boost::re_detail::raw_storage::extend(unsigned int)" (?extend@
> raw_storage_at_re_detail_at_boost@@QAEPAXI_at_Z)
> demo_grep.obj : error LNK2019: unresolved external symbol "public: void *
> __thiscall boost::re_detail::raw_storage::insert(unsigned
> int,unsigned int)" (?insert_at_raw_storage_at_re_detail_at_boost@@QAEPAXII_at_Z)
> referenced in function "public: struct
> boost::re_detail::re_syntax_base * __thiscall
> boost::re_detail::basic_regex_creator<char,struct
> boost::regex_traits<char,class
> boost::cpp_regex_traits<char> > >::insert_state(int,enum
> boost::re_detail::syntax_element_type,unsigned int)"
> (?insert_state@?$basic_regex_creator_at_DU?$regex_traits_at_DV
> ?$cpp_regex_traits_at_D@boost@@@boost@@@re_detail_at_boost@@
> QAEPAUre_syntax_base_at_2
> 3_at_HW4syntax_element_type_at_23@I_at_Z)
> J:\Cpp\Misc\Debug\grep.exe : fatal error LNK1120: 2 unresolved externals
>
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