Re: futures, wielokrotne templaty, lambdy i standard c++17

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Article #309709

#309709

From: Borneq
Date: Thu, 21 Jun 2018 15:48

29 lines
1862 bytes

Zobaczyłem czym się różnią wersje folly:

/usr/local/include/folly/futures/Future.h
na starej wersji:

template <typename F, typename R = futures::detail::callableResult<T, F>>
   typename R::Return then(F&& func) {
     return thenImplementation<F, R>(std::forward<F>(func), typename 
R::Arg());
   }

i nowa :

   template <typename F, typename R = futures::detail::callableResult<T, F>>
   typename R::Return then(F&& func) {
     return this->template thenImplementation<F, R>(
         std::forward<F>(func), typename R::Arg());
   }

co oznacza "this->template" dla kodu, który używa tego szablonu?

nowe folly używa również:
/usr/local/include/folly/functional/Invoke.h
or /usr/include/c++/8/type_traits
   /// std::invoke_result_t
   template<typename _Fn, typename... _Args>
     using invoke_result_t = typename invoke_result<_Fn, _Args...>::type;

Na czym mają polegać zmiany w kodzie?

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Path: mbox-mo1.pugleaf.net!news-archive.icm.edu.pl!news.icm.edu.pl!newsfeed2.atman.pl!newsfeed.atman.pl!.POSTED!not-for-mail
From: Borneq <borneq@antyspam.hidden.pl>
Newsgroups: pl.comp.lang.c
Subject: Re: futures, wielokrotne templaty, lambdy i standard c++17
Date: Thu, 21 Jun 2018 17:48:34 +0200
Organization: ATMAN - ATM S.A.
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