//Purpose:
//  Test whether variant can handle bounded types where one bounded type
//  is copy constructible from another.
//References:
//  [1]
//    http://article.gmane.org/gmane.comp.lib.boost.user/59167
//  [2]
//    http://article.gmane.org/gmane.comp.lib.boost.user/64467
//Result:
//  Yes, it can.  Apparently changes were made to variant after
//  Reference[1] post was made.
//
#include <boost/variant.hpp>
#include <iostream>

int main(void)
{
    boost::variant<void*, bool, int, std::string> value;
    std::cout<<"default:which="<<value.which()<<"\n";
  //#define DEFAULT_TAG
  #ifdef DEFAULT_TAG
    std::cout<<"YES DEFAULT_TAG\n";
    void* p0=0;
    value = p0;
  #else
    std::cout<<"NOT DEFAULT_TAG\n";
    bool  b0=true;
    value = b0;
  #endif
    std::cout<<"after assign:which="<<value.which()<<"\n";
    return 0;
}