[boost] [iostreams] Problem using with MinGW GCC 3.4.2

From: Daniel Schlyder (daniel_at_[hidden])
Date: 2004-12-20 05:09:54

Hi,

I get the following error when trying to compile a simple test (attached)
using vector_sink from the tutorial with MinGW GCC 3.4.2:

boost_iostreams.cpp: In function `int main()':
boost_iostreams.cpp:41: error: invalid operands of types
   `boost::io::streambuf_facade<
        vector_sink, char_traits<char>, boost::io::output
    > ()(vector_sink)' and `int' to binary `operator<<'

Please accept my apologies if I've overlooked something crucial in the docs.

In case it matters, here is a list of changes I made to make the lib compile
cleanly:

1.

E:\libs\boost\libs\iostreams\build\../src/mapped_file.cpp:168: error:
   `::GetFileSizeEx' has not been declared

According to MSDN, GetFileSizeEx() is only available under Windows 2000 and
newer, so I had to remove this file from Jamfile sources. Maybe there should
be a define for this, like for the compression code.

2.

E:/libs/boost/boost/iostreams/detail/streambuf/indirect_streambuf.hpp:150:
    error: `default_filter_buffer_size' undeclared (first use this function)
E:/libs/boost/boost/iostreams/detail/streambuf/indirect_streambuf.hpp:151:
    error: `default_buffer_size' undeclared (first use this function)
E:/libs/boost/boost/iostreams/detail/streambuf/indirect_streambuf.hpp:155:
    error: `default_pback_buffer_size' undeclared (first use this function)

Fixed by including 'boost/iostreams/constants.hpp'.

3.

E:/libs/boost/boost/iostreams/categories.hpp:102: warning: virtual base
   `boost::io::input_seekable' inaccessible in `boost::io::iostream_tag' due
    to ambiguity
E:/libs/boost/boost/iostreams/categories.hpp:102: warning: virtual base
   `boost::io::device_tag' inaccessible in `boost::io::iostream_tag' due to
    ambiguity
E:/libs/boost/boost/iostreams/categories.hpp:102: warning: virtual base
   `boost::io::output_seekable' inaccessible in `boost::io::iostream_tag' due
    to ambiguity

Fixed by replacing

struct seekable_device_tag : device_tag, seekable { };

with

struct seekable_device_tag : virtual device_tag, seekable { };

and

struct seekable : input_seekable, output_seekable, detail::one_head { };

with

struct seekable : virtual input_seekable, virtual output_seekable, detail::one_head { };

4.

E:/libs/boost/boost/iostreams/detail/streambuf/linked_streambuf.hpp:54: error:
    variable or field `close' declared void
E:/libs/boost/boost/iostreams/detail/streambuf/linked_streambuf.hpp:54: error:
   `close' declared as a `virtual' field
E:/libs/boost/boost/iostreams/detail/streambuf/linked_streambuf.hpp:54: error:
    expected `;' before '(
        ' token

Fixed by including 'ios'.

5.

E:/libs/boost/boost/iostreams/detail/streambuf/indirect_streambuf.hpp:377:1:
    warning: multi-line comment

Fixed by changing to C-style comment. Not sure whether this is a problem with
the code or GCC not handling the '\' in the macro definition properly.

I also removed duplicate include of 'boost/iostreams/constants.hpp' in
'boost/iostreams/stream_facade.hpp'.

TIA,

--
Daniel Schlyder
http://bitblaze.com/