std::experimental::apply
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                    < cpp | experimental
                    
                                                            
                    | Defined in header  <experimental/tuple> | ||
| template <class F, class Tuple> constexpr decltype(auto) apply(F&& f, Tuple&& t); | (library fundamentals TS) | |
Invoke the Callable object f with a tuple of arguments.
| Contents | 
[edit] Parameters
| f | - | Callableobject to be invoked | 
| t | - | tuple whose elements to be used as arguments to f | 
[edit] Return value
What returned by f.
[edit] Possible implementation
| namespace detail { template <class F, class Tuple, std::size_t... I> constexpr decltype(auto) apply_impl( F&& f, Tuple&& t, std::index_sequence<I...> ) { return std::invoke(std::forward<F>(f), std::get<I>(std::forward<Tuple>(t))...); // Note: std::invoke is a C++17 feature } } // namespace detail template <class F, class Tuple> constexpr decltype(auto) apply(F&& f, Tuple&& t) { return detail::apply_impl(std::forward<F>(f), std::forward<Tuple>(t), std::make_index_sequence<std::tuple_size_v<std::decay_t<Tuple>>>{}); } | 
[edit] Example
| This section is incomplete Reason: no example | 
[edit] See also
| creates a tupleobject of the type defined by the argument types(function template) | |
| creates a tupleof rvalue references(function template) | 



