namespace simgrid::xbt {
template <typename T> struct ref_or_value {
- using type = std::conditional_t<std::is_lvalue_reference<T>::value,
- std::reference_wrapper<typename std::remove_reference<T>::type>, T>;
+ using type =
+ std::conditional_t<std::is_lvalue_reference_v<T>, std::reference_wrapper<typename std::remove_reference_t<T>>, T>;
};
template <typename T> using ref_or_value_t = typename ref_or_value<T>::type;
template <typename Iterator, typename... Args> struct iterator_wrapping {
private:
std::tuple<ref_or_value_t<Args>...> m_args;
- iterator_wrapping(Args&&... begin_iteration) : m_args(std::forward<ref_or_value_t<Args>>(begin_iteration)...) {}
template <typename IteratorType, typename... Arguments>
friend constexpr iterator_wrapping<IteratorType, Arguments...> make_iterator_wrapping(Arguments&&... args);
friend constexpr iterator_wrapping<IteratorType, Arguments...> make_iterator_wrapping_explicit(Arguments... args);
public:
+ iterator_wrapping(Args&&... begin_iteration) : m_args(ref_or_value_t<Args>(begin_iteration)...) {}
iterator_wrapping(const iterator_wrapping&) = delete;
iterator_wrapping(iterator_wrapping&&) = delete;
iterator_wrapping& operator=(const iterator_wrapping&) = delete;
template <typename Iterator, typename... Args>
constexpr iterator_wrapping<Iterator, Args...> make_iterator_wrapping_explicit(Args... args)
{
- return iterator_wrapping<Iterator, Args...>(std::forward<Args>(args)...);
+ return iterator_wrapping<Iterator, Args...>(args...);
}
} // namespace simgrid::xbt