Re: [Boost-users] How to use boost iostream with zlib

From: Meryl Silverburgh (silverburgh.meryl_at_[hidden])
Date: 2007-07-06 12:11:07

Thanks. I just tried your idea on ubuntu and I get the  linker errors too:

g++  -o"boostTest"  ./src/boostTest.o
./src/boostTest.o: In function `void
boost::iostreams::detail::zlib_base::init<std::allocator<char>
>(boost::iostreams::zlib_params const&, bool,
boost::iostreams::detail::zlib_allocator<std::allocator<char>,
boost::iostreams::detail::zlib_allocator_traits<std::allocator<char>
>::type>&)':
/usr/include/boost/iostreams/filter/zlib.hpp:182: undefined reference
to `boost::iostreams::detail::zlib_base::do_init(boost::iostreams::zlib_params
const&, bool, void* (*)(void*, unsigned int, unsigned int), void
(*)(void*, void*), void*)'
./src/boostTest.o: In function `zlib_decompressor_impl':
/usr/include/boost/iostreams/filter/zlib.hpp:363: undefined reference
to `boost::iostreams::detail::zlib_base::zlib_base()'
/usr/include/boost/iostreams/filter/zlib.hpp:365: undefined reference
to `boost::iostreams::zlib::default_strategy'
/usr/include/boost/iostreams/filter/zlib.hpp:365: undefined reference
to `boost::iostreams::zlib::deflated'
/usr/include/boost/iostreams/filter/zlib.hpp:365: undefined reference
to `boost::iostreams::zlib::default_compression'
/usr/include/boost/iostreams/filter/zlib.hpp:367: undefined reference
to `boost::iostreams::detail::zlib_base::~zlib_base()'
./src/boostTest.o: In function `~zlib_decompressor_impl':
/usr/include/boost/iostreams/filter/zlib.hpp:360: undefined reference
to `boost::iostreams::detail::zlib_base::reset(bool, bool)'
/usr/include/boost/iostreams/filter/zlib.hpp:360: undefined reference
to `boost::iostreams::detail::zlib_base::~zlib_base()'
/usr/include/boost/iostreams/filter/zlib.hpp:360: undefined reference
to `boost::iostreams::detail::zlib_base::~zlib_base()'
./src/boostTest.o: In function
`boost::iostreams::detail::zlib_decompressor_impl<std::allocator<char>
>::close()':
/usr/include/boost/iostreams/filter/zlib.hpp:383: undefined reference
to `boost::iostreams::detail::zlib_base::reset(bool, bool)'
./src/boostTest.o: In function
`boost::iostreams::detail::zlib_decompressor_impl<std::allocator<char>
>::filter(char const*&, char const*, char*&, char*, bool)':
/usr/include/boost/iostreams/filter/zlib.hpp:375: undefined reference
to `boost::iostreams::detail::zlib_base::before(char const*&, char
const*, char*&, char*)'
/usr/include/boost/iostreams/filter/zlib.hpp:376: undefined reference
to `boost::iostreams::zlib::sync_flush'
/usr/include/boost/iostreams/filter/zlib.hpp:376: undefined reference
to `boost::iostreams::detail::zlib_base::inflate(int)'
/usr/include/boost/iostreams/filter/zlib.hpp:377: undefined reference
to `boost::iostreams::detail::zlib_base::after(char const*&, char*&,
bool)'
/usr/include/boost/iostreams/filter/zlib.hpp:378: undefined reference
to `boost::iostreams::zlib_error::check(int)'
/usr/include/boost/iostreams/filter/zlib.hpp:379: undefined reference
to `boost::iostreams::zlib::stream_end'
collect2: ld returned 1 exit status
make: *** [boostTest] Error 1

On 7/6/07, Ron Lau <ronyclau_at_[hidden]> wrote:
> I can successfully compile the code with the add of one "using" statement
> but the linker reports linker error.
>
>  Code:
>
>  // ...
>  #include <boost/iostreams/copy.hpp>
>  #include <boost/iostreams/filter/zlib.hpp>
>
> int main()
> {
>     using namespace std;
>     using namespace boost::iostreams; // Added this line.
>     ifstream file("hello.z", ios_base::in | ios_base::binary);
>     filtering_streambuf<input> in;
>     // ...
>  }
>
>  Linker error:
>  g++ -ozlib.exe -lboost_iostreams-mgw34-mt-1_34 zlib.cpp
> SOME/PATH/HERE/ccW0caaa.o(.text$_ZN5boost9iostreams6detail22zlib_decompressor_implISaIcEEC2Ei[boost::iostreams::detail::zlib_decompressor_impl<std::allocator<char>
> >::zlib_decompressor_impl(int)]+0x46):zlib.cpp: undefined
> reference to
> `boost::iostreams::detail::zlib_base::zlib_base()'
> SOME/PATH/HERE/ccW0caaa.o(.text$_ZN5boost9iostreams6detail22zlib_decompressor_implISaIcEEC2Ei[boost::iostreams::detail::zlib_decompressor_impl<std::allocator<char>
> >::zlib_decompressor_impl(int)]+0x66):zlib.cpp: undefined
> reference to `boost::iostreams::zlib::default_strategy'
> SOME/PATH/HERE/ccW0caaa.o(.text$_ZN5boost9iostreams6detail22zlib_decompressor_implISaIcEEC2Ei[boost::iostreams::detail::zlib_decompressor_impl<std::allocator<char>
> >::zlib_decompressor_impl(int)]+0x7f):zlib.cpp: undefined
> reference to `boost::iostreams::zlib::deflated'
> SOME/PATH/HERE/ccW0caaa.o(.text$_ZN5boost9iostreams6detail22zlib_decompressor_implISaIcEEC2Ei[boost::iostreams::detail::zlib_decompressor_impl<std::allocator<char>
> >::zlib_decompressor_impl(int)]+0x88):zlib.cpp: undefined
> reference to `boost::iostreams::zlib::default_compression'
> SOME/PATH/HERE/ccW0caaa.o(.text$_ZN5boost9iostreams6detail22zlib_decompressor_implISaIcEEC2Ei[boost::iostreams::detail::zlib_decompressor_impl<std::allocator<char>
> >::zlib_decompressor_impl(int)]+0xff):zlib.cpp: undefined
> reference to
> `boost::iostreams::detail::zlib_base::~zlib_base()'
> SOME/PATH/HERE/ccW0caaa.o(.text$_ZN5boost9iostreams6detail22zlib_decompressor_implISaIcEED2Ev[boost::iostreams::detail::zlib_decompressor_impl<std::allocator<char>
> >::~zlib_decompressor_impl()]+0x18):zlib.cpp: undefined
> reference to
> `boost::iostreams::detail::zlib_base::~zlib_base()'
> SOME/PATH/HERE/ccW0caaa.o(.text$_ZN5boost9iostreams6detail9zlib_base4initISaIcEEEvRKNS0_11zlib_paramsEbRNS1_14zlib_allocatorIT_NS1_21zlib_allocator_traitsIS9_E4typeEEE[void
> boost::iostreams::detail::zlib_base::init<std::allocator<char>
> >(boost::iostreams::zlib_params const&, bool,
> boost::iostreams::detail::zlib_allocator<std::allocator<char>,
> boost::iostreams::detail::zlib_allocator_traits<std::allocator<char>
> >::type>&)]+0x67):zlib.cpp: undefined reference to
> `boost::iostreams::detail::zlib_base::do_init(boost::iostreams::zlib_params
> const&, bool, void* (*)(void*, unsigned int, unsigned int), void (*)(void*,
> void*), void*)'
> SOME/PATH/HERE/ccW0caaa.o(.text$_ZN5boost9iostreams6detail22zlib_decompressor_implISaIcEE6filterERPKcS6_RPcS8_b[boost::iostreams::detail::zlib_decompressor_impl<std::allocator<char>
> >::filter(char const*&, char const*, char*&, char*, bool)]+0x2f):zlib.cpp:
> undefined reference to
> `boost::iostreams::detail::zlib_base::before(char const*&,
> char const*, char*&, char*)'
> SOME/PATH/HERE/ccW0caaa.o(.text$_ZN5boost9iostreams6detail22zlib_decompressor_implISaIcEE6filterERPKcS6_RPcS8_b[boost::iostreams::detail::zlib_decompressor_impl<std::allocator<char>
> >::filter(char const*&, char const*, char*&, char*, bool)]+0x34):zlib.cpp:
> undefined reference to `boost::iostreams::zlib::sync_flush'
> SOME/PATH/HERE/ccW0caaa.o(.text$_ZN5boost9iostreams6detail22zlib_decompressor_implISaIcEE6filterERPKcS6_RPcS8_b[boost::iostreams::detail::zlib_decompressor_impl<std::allocator<char>
> >::filter(char const*&, char const*, char*&, char*, bool)]+0x43):zlib.cpp:
> undefined reference to
> `boost::iostreams::detail::zlib_base::inflate(int)'
> SOME/PATH/HERE/ccW0caaa.o(.text$_ZN5boost9iostreams6detail22zlib_decompressor_implISaIcEE6filterERPKcS6_RPcS8_b[boost::iostreams::detail::zlib_decompressor_impl<std::allocator<char>
> >::filter(char const*&, char const*, char*&, char*, bool)]+0x67):zlib.cpp:
> undefined reference to
> `boost::iostreams::detail::zlib_base::after(char const*&,
> char*&, bool)'
> SOME/PATH/HERE/ccW0caaa.o(.text$_ZN5boost9iostreams6detail22zlib_decompressor_implISaIcEE6filterERPKcS6_RPcS8_b[boost::iostreams::detail::zlib_decompressor_impl<std::allocator<char>
> >::filter(char const*&, char const*, char*&, char*, bool)]+0x72):zlib.cpp:
> undefined reference to
> `boost::iostreams::zlib_error::check(int)'
> SOME/PATH/HERE/ccW0caaa.o(.text$_ZN5boost9iostreams6detail22zlib_decompressor_implISaIcEE6filterERPKcS6_RPcS8_b[boost::iostreams::detail::zlib_decompressor_impl<std::allocator<char>
> >::filter(char const*&, char const*, char*&, char*, bool)]+0x7b):zlib.cpp:
> undefined reference to `boost::iostreams::zlib::stream_end'
> SOME/PATH/HERE/ccW0caaa.o(.text$_ZN5boost9iostreams6detail22zlib_decompressor_implISaIcEE5closeEv[boost::iostreams::detail::zlib_decompressor_impl<std::allocator<char>
> >::close()]+0x1d):zlib.cpp: undefined reference to
> `boost::iostreams::detail::zlib_base::reset(bool, bool)'
>  collect2: ld returned 1 exit status
>
>  Built using Boost 1.34 with Multi-threading support, MinGW g++ 3.42
>
>
> On 06/07/07, Meryl Silverburgh <silverburgh.meryl_at_[hidden] > wrote:
> >
> > On 7/4/07, eg <egoots_at_[hidden] > wrote:
> > > Meryl Silverburgh wrote:
> > > > Hi,
> > > >
> > > > Can you please tell me how can I use  boost iostream with zlib to
> > > > inflate an byte stream?
> > > > Where can I find an example?
> > > >
> > >
> > > The library docs have some examples in them.
> > > See:
> > > http://boost.org/libs/iostreams/doc/index.html
> > >
> > > Navigate to the Quick Reference and click on the
> > > "basic_zlib_decompressor" filter link. At the bottom of the page you
> > > will see an example.
> > >
> >
> >
> > I am having problems in compiling the example in the boost iostreams
> exmaple:
> >
> > code:
> >
> > #include <fstream>
> > #include <iostream>
> > #include <boost/iostreams/filtering_streambuf.hpp>
> > #include <boost/iostreams/copy.hpp>
> > #include <boost/iostreams/filter/zlib.hpp>
> >
> > int main()
> > {
> >     using namespace std;
> >
> >     ifstream file("hello.z", ios_base::in | ios_base::binary);
> >     filtering_streambuf<input> in;
> >     in.push(zlib_decompressor());
> >     in.push (file);
> >     boost::iostreams::copy(in, cout);
> > }
> >
> > error:
> >
> > g++ -O0 -g3 -Wall -c -fmessage-length=0 -MMD -MP -MF"src/boostTest.d"
> > -MT"src/boostTest.d" -o"src/boostTest.o" "../src/boostTest.cpp"
> > ../src/boostTest.cpp:18:2: warning: no newline at end of file
> > ../src/boostTest.cpp: In function 'int main()':
> > ../src/boostTest.cpp:13: error: 'filtering_streambuf' was not declared
> > in this scope
> > ../src/boostTest.cpp:13: error: 'input' was not declared in this scope
> > ../src/boostTest.cpp:13: error: 'in' was not declared in this scope
> > ../src/boostTest.cpp:14: error: 'zlib_decompressor' was not declared
> > in this scope
> > make: *** [src/boostTest.o] Error 1
> >
> >
> > >
> > >
> > > _______________________________________________
> > > Boost-users mailing list
> > > Boost-users_at_[hidden]
> > > http://lists.boost.org/mailman/listinfo.cgi/boost-users
> > >
> > _______________________________________________
> > Boost-users mailing list
> > Boost-users_at_[hidden]
> > http://lists.boost.org/mailman/listinfo.cgi/boost-users
> >
>
>
>
> --
> Regards,
> Ron Lau
>
> Life is wonderful because there are variables and unknowns.
> _______________________________________________
> Boost-users mailing list
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