c++ - 绑定(bind)可以用来转发可变数量的参数吗？

Question

在 C++14 中，我可以编写一个对任意数量的参数进行完美转发的 lambda:

template<typename... Args>
void process(Args&&... args);                       // template to forward to


auto wrapper = [](auto&&... args) 
{ 
  std::cout << "Invoking lambda wrapper\n";
  process(std::forward<decltype(args)>(args)...);   // do the forwarding
};

有没有办法使用bind达到同样的效果？我知道 bind 创建的函数对象接受任意数量的参数，我知道这些对象使用完美转发未绑定(bind)的参数，但是有没有办法告诉 bind创建一个对传递给它的每个参数使用完美转发的函数对象，即使在对 bind?

的调用中没有占位符也是如此

Answer 1

目前不可能，但请参阅 http://cplusplus.github.io/EWG/ewg-complete.html#44支持它的建议:

As more variadic functions work their way into my C++ code, I'm getting increasingly annoyed that there isn't a variadic bind. There is a tiny bit of annoyance on exactly what to use. There seems to me to be 2 sensible choices (other people may have others)

1) _args : Use all otherwise unnamed arguments.
2) _3onwards : All arguments from the 3rd onwards.

I haven't personally found a need for multiple ranges of variadic arguments, or more complicated chopping (such as getting the last few arguments), and I'd want to hopefully keep this simple if possible!