This file demonstrates the new long-typename wrapping feature of gSTLFilt.pl,
useful for applications such as template metaprogramming. The source program:


    //
    // metatest.cpp: This program produces a nice set of
    //               errors to flex the muscles of STLFilt's
    //               template metaprogramming-specific features.
    //
    // Note: You need a very recent version of Boost installed.

    #include <boost/mpl/range_c.hpp>
    #include <boost/mpl/reverse_fold.hpp>
    #include <boost/mpl/plus.hpp>

    namespace mpl = boost::mpl;

    mpl::reverse_fold<
            mpl::range_c<long, 0, 50>
          , void
          , mpl::plus<>
    >::type x;


First, an unfiltered run using the MinGW gcc 3.4.5 compiler:

    e:/boost/boost/mpl/aux_/preprocessed/gcc/plus.hpp: In instantiation of `boost::m
    pl::plus_tag<void>':
    e:/boost/boost/mpl/aux_/preprocessed/gcc/plus.hpp:114:   instantiated from `boos
    t::mpl::plus<void, mpl_::integral_c<long int, 49l>, mpl_::na, mpl_::na, mpl_::na
    >'
    e:/boost/boost/mpl/aux_/preprocessed/gcc/plus.hpp:123:   instantiated from `boos
    t::mpl::plus<mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>::apply<void, mpl_
    ::integral_c<long int, 49l>, mpl_::na, mpl_::na, mpl_::na>'
    e:/boost/boost/mpl/aux_/preprocessed/gcc/apply_wrap.hpp:49:   instantiated from
    `boost::mpl::apply_wrap2<boost::mpl::plus<mpl_::na, mpl_::na, mpl_::na, mpl_::na
    , mpl_::na>, void, mpl_::integral_c<long int, 49l> >'
    e:/boost/boost/mpl/aux_/preprocessed/gcc/apply.hpp:73:   instantiated from `boos
    t::mpl::apply2<boost::mpl::plus<mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na
    >, void, mpl_::integral_c<long int, 49l> >'
    e:/boost/boost/mpl/aux_/preprocessed/gcc/reverse_fold_impl.hpp:81:   instantiate
    d from `boost::mpl::aux::reverse_fold_impl<2l, boost::mpl::r_iter<mpl_::integral
    _c<long int, 48l> >, boost::mpl::r_iter<mpl_::integral_c<long int, 50l> >, void,
     boost::mpl::plus<mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, mpl_::arg<1
    > >'
    e:/boost/boost/mpl/aux_/preprocessed/gcc/reverse_fold_impl.hpp:181:   instantiat
    ed from `boost::mpl::aux::reverse_fold_impl<6l, boost::mpl::r_iter<mpl_::integra
    l_c<long int, 44l> >, boost::mpl::r_iter<mpl_::integral_c<long int, 50l> >, void
    , boost::mpl::plus<mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, mpl_::arg<
    1> >'
    e:/boost/boost/mpl/aux_/preprocessed/gcc/reverse_fold_impl.hpp:181:   instantiat
    ed from `boost::mpl::aux::reverse_fold_impl<10l, boost::mpl::r_iter<mpl_::integr
    al_c<long int, 40l> >, boost::mpl::r_iter<mpl_::integral_c<long int, 50l> >, voi
    d, boost::mpl::plus<mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, mpl_::arg
    <1> >'
    e:/boost/boost/mpl/aux_/preprocessed/gcc/reverse_fold_impl.hpp:181:   instantiat
    ed from `boost::mpl::aux::reverse_fold_impl<14l, boost::mpl::r_iter<mpl_::integr
    al_c<long int, 36l> >, boost::mpl::r_iter<mpl_::integral_c<long int, 50l> >, voi
    d, boost::mpl::plus<mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, mpl_::arg
    <1> >'
    e:/boost/boost/mpl/aux_/preprocessed/gcc/reverse_fold_impl.hpp:181:   instantiat
    ed from `boost::mpl::aux::reverse_fold_impl<18l, boost::mpl::r_iter<mpl_::integr
    al_c<long int, 32l> >, boost::mpl::r_iter<mpl_::integral_c<long int, 50l> >, voi
    d, boost::mpl::plus<mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, mpl_::arg
    <1> >'

And a filtered run using the gcc-specific Proxy c++ with /break:D (the default):


    e:/boost/boost/mpl/aux_/preprocessed/gcc/plus.hpp: In instantiation of
       `boost::mpl::plus_tag<void>':
    metatest.cpp:18:   instantiated from here
    e:/boost/boost/mpl/aux_/preprocessed/gcc/plus.hpp:114:   instantiated from
       `boost::mpl::plus<void, mpl_::integral_c<long int, 49l> >'
    e:/boost/boost/mpl/aux_/preprocessed/gcc/plus.hpp:123:   instantiated from
       `boost::mpl::plus<mpl_::na>::apply<void, mpl_::integral_c<long int, 49l> >'
    e:/boost/boost/mpl/aux_/preprocessed/gcc/apply_wrap.hpp:49:   instantiated from
       `boost::mpl::apply_wrap2<
            boost::mpl::plus<mpl_::na>, void, mpl_::integral_c<long int, 49l>
        >'
    e:/boost/boost/mpl/aux_/preprocessed/gcc/apply.hpp:73:   instantiated from
       `boost::mpl::apply2<
            boost::mpl::plus<mpl_::na>, void, mpl_::integral_c<long int, 49l>
        >'
    e:/boost/boost/mpl/aux_/preprocessed/gcc/reverse_fold_impl.hpp:81:
        instantiated from
       `boost::mpl::aux::reverse_fold_impl<
            2l, boost::mpl::r_iter<mpl_::integral_c<long int, 48l> >
          , boost::mpl::r_iter<mpl_::integral_c<long int, 50l> >, void
          , boost::mpl::plus<mpl_::na>, mpl_::arg<1>
        >'
    e:/boost/boost/mpl/aux_/preprocessed/gcc/reverse_fold_impl.hpp:181:
        instantiated from
       `boost::mpl::aux::reverse_fold_impl<
            6l, boost::mpl::r_iter<mpl_::integral_c<long int, 44l> >
          , boost::mpl::r_iter<mpl_::integral_c<long int, 50l> >, void
          , boost::mpl::plus<mpl_::na>, mpl_::arg<1>
        >'
    e:/boost/boost/mpl/aux_/preprocessed/gcc/reverse_fold_impl.hpp:181:
        instantiated from
       `boost::mpl::aux::reverse_fold_impl<
            10l, boost::mpl::r_iter<mpl_::integral_c<long int, 40l> >
          , boost::mpl::r_iter<mpl_::integral_c<long int, 50l> >, void
          , boost::mpl::plus<mpl_::na>, mpl_::arg<1>
        >'
    e:/boost/boost/mpl/aux_/preprocessed/gcc/reverse_fold_impl.hpp:181:
        instantiated from
       `boost::mpl::aux::reverse_fold_impl<
            14l, boost::mpl::r_iter<mpl_::integral_c<long int, 36l> >
          , boost::mpl::r_iter<mpl_::integral_c<long int, 50l> >, void
          , boost::mpl::plus<mpl_::na>, mpl_::arg<1>
        >'

    [plus lots more of the same...]