id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
1389,filesystem::ostream << boost::format  generates operator ambigious error (in MSVC++),randomaccessiterator@…,Beman Dawes,"The following code 


{{{
#include <boost/format.hpp>
#include <boost/filesystem/fstream.hpp>

void foo () 
{
   using namespace boost::filesystem;
   ofstream file ( ""foo.txt"" );
   file << boost::format(""hello"");   
}

}}}

generates the following compilation error with MSVC++ 7.1:

d:\foo.cpp(8) : error C2593: 'operator <<' is ambiguous
        d:\Programs\boost\boost_1_34_0\boost\filesystem\path.hpp(617): could be 'std::basic_ostream<_Elem,_Traits> &boost::filesystem::operator <<>(std::basic_ostream<_Elem,_Traits> &,const Path &)'
        with
        [
            _Elem=char,
            _Traits=std::char_traits,
            Ch=char,
            Path=boost::basic_format
        ]
        d:\Programs\boost\boost_1_34_0\boost\format\free_funcs.hpp(33): or       'std::basic_ostream<_Elem,_Traits> &boost::operator <<,std::allocator<_Ty>>(std::basic_ostream<_Elem,_Traits> &,const boost::basic_format &)' [found using argument-dependent lookup]
        with
        [
            _Elem=char,
            _Traits=std::char_traits,
            _Ty=char,
            Ch=char
        ]
        while trying to match the argument list '(boost::filesystem::ofstream, boost::basic_format)'
        with
        [
            Ch=char
        ]



Compiled with options
[
/Od /D ""WIN32"" /D ""_DEBUG"" /D ""_CONSOLE"" /D ""_MBCS"" /Gm /RTC1 /MLd /Fo""Debug/"" /Fd""Debug/vc70.pdb"" /W3 /c /ZI /TP  /EHa
]


",Bugs,closed,To Be Determined,filesystem,Boost 1.34.1,Problem,wontfix,,