anonymous — Tue, 15 Mar 2016 12:24:35 GMT

Can you provide a short but complete example that demonstrates the problem?

I can see that the following code does not even compile on GCC and Clang (which is desirable).

#include <boost/utility/in_place_factory.hpp>
#include <boost/optional.hpp>
int main()
{
  boost::optional<char> oa = boost::in_place<double>(0);
}

anonymous — Tue, 15 Mar 2016 12:29:59 GMT

What compiler are you using?

Boost C++ Libraries: Ticket #10149: boost::optional can be constructed from a typed in place factory of the wrong type