On Monday, November 25th, 2024 at 9:48 PM, Yongwei Wu <wuyongwei@gmail.com> wrote:

On Tue, 26 Nov 2024 at 04:13, Smith, Jim via Std-Discussion <std-discussion@lists.isocpp.org> wrote:
Hi All,

Is there already a proposal for making the C++ for loop generic, for example able to print a function parameter pack?

As Andrey said, fold expressions can usually do. Specifically, with the comma operator.

This is an example I usually use in training:

template <typename T, typename... Args>

void printWithSeparator(const T& sep, const Args&... args)

{

((cout << args << sep), ...);

}

Replace with the `(cout << args << sep)` part with what you want to do with the arguments.

I appreciate the feedback.

I'm familiar with how to access the function parameter pack, it was mentioned here as example application for generic loop.

My question was about a proposal for implementing generic for loop.

This link wg21.link/p1306 as Ville Voutilainen mentioned in his reply provided the answer.

- James Smith