Alexander Nasonov wrote:
Tobias Schwinger wrote:
Sorry for jumping in here. But I believe that
#ifndef BOOST_NO_SFINAE namespace boost { namespace type_of { template<typename T> typename enable_if<is_function<T>, T &>::type ensure_obj(T &); } } #endif // verified to solve the problem with GCC 3.2.3
is a much nicer solution to the problem you describe (because it leaves scalability up to boost::is_function).
Unfortunately, this doesn't compile neither on gcc 3.3.x nor on gcc 3.2.3.
Did you try catching T volatile & as a workaround? http://gcc.gnu.org/bugzilla/show_bug.cgi?id=8503 Well, it compiles fine on my copy of GCC (MinGW) and in MinGW 3.2.3 that bug is patched away (although it still doesn't match a function reference with T const & as GCC 3.4 does).