C++17

fold expression

std::size

• cppreference - std::size

version 1 :

template <class C>
constexpr auto size(const C& c) -> decltype(c.size())
{
    return c.size();
}

version 2 :

template <class T, std::size_t N>
constexpr std::size_t size(const T (&array)[N]) noexcept
{
    return N;
}

Progress

• C++17 progress update! (Oct 2015)

• Trip report: Fall 2015 ISO C++ standards meeting

• [GitHub] Parallelism TS Editor’s Report, post-Lenexa mailing

參考

• Wikipedia - C++17

• fold expression

• C++ Status at the end of 2015

• The C++17 Lands

• A cheatsheet of modern C++ language and library features

• Descriptions of C++17 features, presented mostly in “Tony Tables”

• What is Strict Aliasing and Why do we Care?

  • C 有 effective type 和 compatible type，但是 C++ 沒有

  • C++ 有 dynamic type 和 similar type，但是 C 沒有

  • Type Punning

• Standard C++: Current Status

• C++17 fold expressions, precedence cheat sheet