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// comment if you want to see the boost::move issue
#define BOOST_THREAD_VERSION 3
#include <boost/type_traits/is_same.hpp>
#include <boost/variant/detail/apply_visitor_binary.hpp>
#include <boost/variant/static_visitor.hpp>
#include <boost/variant/variant.hpp>
#include <boost/smart_ptr/shared_ptr.hpp>
#define WANT_BUILD_TO_FAIL
#ifdef WANT_BUILD_TO_FAIL
#include <boost/thread.hpp>
#endif
class AType
{
};
class BType
{
};
typedef boost::shared_ptr<AType> IATypePtr;
typedef boost::shared_ptr<BType> IBTypePtr;
typedef boost::variant<IATypePtr, IBTypePtr> ABVar;
struct ServiceTimeTableEvent
{
public:
ServiceTimeTableEvent(ABVar abType)
: m_abType{ abType }
{}
inline ABVar const& GetABType() const { return m_abType; }
inline ABVar & GetABType() { return m_abType; }
private:
ABVar m_abType;
};
class ab_are_equals
: public boost::static_visitor<bool>
{
public:
template<typename T, typename U>
bool operator()(T, U) const
{
return false; // cannot compare different types
}
template<typename T>
bool operator()(T lhs, T rhs) const
{
return lhs == rhs;
}
};
int main(int argc, char* argv[])
{
auto aTypePtr = IATypePtr{ new AType };
auto bTypePtr = IBTypePtr{ new BType };
ABVar aType = aTypePtr;
ABVar bType = bTypePtr;
ServiceTimeTableEvent timeTableEvent1{ aType };
ServiceTimeTableEvent timeTableEvent2{ bType };
auto xx = boost::apply_visitor(ab_are_equals(), timeTableEvent1.GetABType(), timeTableEvent2.GetABType());
xx = boost::apply_visitor(ab_are_equals(), timeTableEvent1.GetABType(), timeTableEvent1.GetABType());;
xx = boost::apply_visitor(ab_are_equals(), timeTableEvent2.GetABType(), timeTableEvent2.GetABType());;
}
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