1 // Copyright David Abrahams 2002.
2 // Distributed under the Boost Software License, Version 1.0. (See
3 // accompanying file LICENSE_1_0.txt or copy at
4 // http://www.boost.org/LICENSE_1_0.txt)
5 #ifndef FORCE_INSTANTIATE_DWA200265_HPP
6 # define FORCE_INSTANTIATE_DWA200265_HPP
7 
8 namespace boost { namespace python { namespace detail {
9 
10 // Allows us to force the argument to be instantiated without
11 // incurring unused variable warnings
12 
13 # if !defined(BOOST_MSVC) || BOOST_MSVC == 1200 || _MSC_FULL_VER > 13102196
14 
15 template <class T>
force_instantiate(T const &)16 inline void force_instantiate(T const&) {}
17 
18 # else
19 
20 #  pragma optimize("g", off)
21 inline void force_instantiate_impl(...) {}
22 #  pragma optimize("", on)
23 template <class T>
24 inline void force_instantiate(T const& x)
25 {
26     detail::force_instantiate_impl(&x);
27 }
28 # endif
29 
30 }}} // namespace boost::python::detail
31 
32 #endif // FORCE_INSTANTIATE_DWA200265_HPP
33