A RetroSearch Logo

Home - News ( United States | United Kingdom | Italy | Germany ) - Football scores

Search Query:

Showing content from https://en.cppreference.com/w/cpp/language/../algorithm/../../cpp/header/../experimental/apply.html below:

std::experimental::apply - cppreference.com

Merged into ISO C++ The functionality described on this page was merged into the mainline ISO C++ standard as of 3/2016, see std::apply (since C++17)

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.

[edit] Parameters f - Callable object to be invoked t - tuple whose elements to be used as arguments to f [edit] Return value

What returned by f.

[edit] Possible implementation [edit] Example
#include <iostream>
#include <tuple>
 
template<typename... Ts>
void print_tuple(const std::tuple<Ts...> &tuple)
{
    std::apply([](const auto&... elem) 
    {
        ((std::cout << elem << '\n'), ...); 
    }, tuple);
}
 
int main()
{
    const std::tuple<int, char> t = std::make_tuple(5, 'a');
    print_tuple(t);
}

Output:

[edit] See also

RetroSearch is an open source project built by @garambo | Open a GitHub Issue

Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo

HTML: 3.2 | Encoding: UTF-8 | Version: 0.7.4