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

From: Meryl Silverburgh (silverburgh.meryl_at_[hidden])
Date: 2007-07-06 00:33:09

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

>
>
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