virtual const std::type_info &type_id() const { return typeid(T); }
virtual StoreBase *clone() const { return new Store<T>(data); }
virtual bool type_equals(const StoreBase &s) const { return dynamic_cast<const Store<T> *>(&s); }
- virtual bool value_equals(const StoreBase &s) const { return value_equals_<T>(s); }
+ virtual bool value_equals(const StoreBase &s) const { return _value_equals<T>(s); }
template<typename U>
- typename std::enable_if<IsEqualityComparable<U>::value, bool>::type value_equals_(const StoreBase &s) const
+ typename std::enable_if<IsEqualityComparable<U>::value, bool>::type _value_equals(const StoreBase &s) const
{ const Store<T> *t = dynamic_cast<const Store<T> *>(&s); return (t && t->data==data); }
template<typename U>
- typename std::enable_if<!IsEqualityComparable<U>::value, bool>::type value_equals_(const StoreBase &) const
+ typename std::enable_if<!IsEqualityComparable<U>::value, bool>::type _value_equals(const StoreBase &) const
{ return false; }
};
- StoreBase *store = 0;
+ StoreBase *store = nullptr;
public:
Variant() = default;
template<typename T>
Variant(const T &v): store(new Store<typename std::remove_cv<T>::type>(v)) { }
- Variant(const Variant &v): store(v.store ? v.store->clone() : 0) { }
+ Variant(const Variant &v): store(v.store ? v.store->clone() : nullptr) { }
~Variant() { delete store; }
template<typename T>
Variant &operator=(const Variant &v)
{
delete store;
- store = (v.store ? v.store->clone() : 0);
+ store = (v.store ? v.store->clone() : nullptr);
return *this;
}
template<typename T>
bool check_type() const
{
- return dynamic_cast<Store<typename std::remove_cv<T>::type> *>(store)!=0;
+ return dynamic_cast<Store<typename std::remove_cv<T>::type> *>(store);
}
bool check_same_type(const Variant &v) const