Boost.Range : put "using namespace boost::adaptors" creates conflict.

[thomas.petit33@…]

Hi,

With the current version on the trunk, I get compilation errors with the following program (MSCV10 RC1).

#include <boost/range/adaptors.hpp>
using namespace boost::adaptors;

int main()
{
}

Message error : "1>F:\Program Files\boost\boost/range/iterator.hpp(63): error C2039: 'type' : is not a member of 'boost::mpl::eval_if_c<C,F1,F2>'" ...

See [1] to get the full message error.

I narrowed down the problem to the three adaptors "copied, sliced and tokenized". See below :

// Uncomment one the three adaptors below to get the same compilation error
// #include <boost/range/adaptor/copied.hpp>
// #include <boost/range/adaptor/sliced.hpp>
// #include <boost/range/adaptor/tokenized.hpp>

// these one are fine
#include <boost/range/adaptor/adjacent_filtered.hpp>
#include <boost/range/adaptor/filtered.hpp>
#include <boost/range/adaptor/indexed.hpp>
#include <boost/range/adaptor/indirected.hpp>
#include <boost/range/adaptor/map.hpp>
#include <boost/range/adaptor/replaced.hpp>
#include <boost/range/adaptor/replaced_if.hpp>
#include <boost/range/adaptor/reversed.hpp>
#include <boost/range/adaptor/strided.hpp>
#include <boost/range/adaptor/transformed.hpp>
#include <boost/range/adaptor/uniqued.hpp>

using namespace boost::adaptors;

int main()
{
}

[1] full error message

1>  Creating "Release\TestRangeEx.unsuccessfulbuild" because "AlwaysCreate" was specified.
1>ClCompile:
1>  main.cpp
1>F:\Program Files\boost\boost/range/iterator.hpp(63): error C2039: 'type' : is not a member of 'boost::mpl::eval_if_c<C,F1,F2>'
1>          with
1>          [
1>              C=false,
1>              F1=boost::range_const_iterator<unsigned int>,
1>              F2=boost::range_mutable_iterator<unsigned int>
1>          ]
1>          F:\Program Files\Microsoft Visual Studio 10.0\VC\include\xstring(1920) : see reference to class template instantiation 'boost::range_iterator<C>' being compiled
1>          with
1>          [
1>              C=unsigned int
1>          ]
1>          F:\Program Files\Microsoft Visual Studio 10.0\VC\include\xstring(1919) : while compiling class template member function 'void std::basic_string<_Elem,_Traits,_Ax>::_Copy(unsigned int,unsigned int)'
1>          with
1>          [
1>              _Elem=wchar_t,
1>              _Traits=std::char_traits<wchar_t>,
1>              _Ax=std::allocator<wchar_t>
1>          ]
1>          F:\Program Files\Microsoft Visual Studio 10.0\VC\include\xfunctional(900) : see reference to class template instantiation 'std::basic_string<_Elem,_Traits,_Ax>' being compiled
1>          with
1>          [
1>              _Elem=wchar_t,
1>              _Traits=std::char_traits<wchar_t>,
1>              _Ax=std::allocator<wchar_t>
1>          ]
1>F:\Program Files\boost\boost/range/iterator.hpp(63): error C2146: syntax error : missing ';' before identifier 'type'
1>F:\Program Files\boost\boost/range/iterator.hpp(63): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
1>F:\Program Files\boost\boost/range/iterator.hpp(63): error C2602: 'boost::range_iterator<C>::type' is not a member of a base class of 'boost::range_iterator<C>'
1>          with
1>          [
1>              C=unsigned int
1>          ]
1>          F:\Program Files\boost\boost/range/iterator.hpp(63) : see declaration of 'boost::range_iterator<C>::type'
1>          with
1>          [
1>              C=unsigned int
1>          ]
1>F:\Program Files\boost\boost/range/iterator.hpp(63): error C2868: 'boost::range_iterator<C>::type' : illegal syntax for using-declaration; expected qualified-name
1>          with
1>          [
1>              C=unsigned int
1>          ]

[raysalem@…]

I am facing the same issue, and I observe the problem with both MSVC 9.0 and 10.0. My code base run with gcc version 4.3.4. So seems to be strictly a MSVC problem.

Has a solution been found and if no, Whats the time frame. If yes is it in a branch?

thanks Ray

[philip.koester@…]

Hm, so this was closed two years ago? I face this issue today. A regression?