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#include <tuple>
template <int Arg>
class TestObj
{
public:
int getArg()
{
return Arg;
}
};
//----------------------------------------------------------------------
// Define a template class that we can specialize with an enumeration
//----------------------------------------------------------------------
enum class EnumType
{
Member,
Subclass
};
template <EnumType Arg> class EnumTemplate;
//----------------------------------------------------------------------
// Specialization for use when "Arg" is "EnumType::Member"
//----------------------------------------------------------------------
template <>
class EnumTemplate<EnumType::Member>
{
public:
EnumTemplate(int m) :
m_member(m)
{
}
int getMember() const
{
return m_member;
}
protected:
int m_member;
};
//----------------------------------------------------------------------
// Specialization for use when "Arg" is "EnumType::Subclass"
//----------------------------------------------------------------------
template <>
class EnumTemplate<EnumType::Subclass> :
public EnumTemplate<EnumType::Member>
{
public:
EnumTemplate(int m) : EnumTemplate<EnumType::Member>(m)
{
}
};
template <typename FLOAT> struct T1 { FLOAT f = 1.5; };
template <typename FLOAT> struct T2 { FLOAT f = 2.5; int i = 42; };
template <typename FLOAT, template <typename> class ...Args> class C { std::tuple<Args<FLOAT>...> V; };
int main(int argc, char **argv)
{
TestObj<1> testpos;
TestObj<-1> testneg;
EnumTemplate<EnumType::Member> member(123);
EnumTemplate<EnumType::Subclass> subclass(123*2);
C<float, T1> c1;
C<double, T1, T2> c2;
return testpos.getArg() - testneg.getArg() + member.getMember()*2 - subclass.getMember(); // Breakpoint 1
}
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