Follow up to episode on better main

[lefticus]

Here is a fully lazy way to do the span of string_views that doesn't require any heap.

#include <span>
#include <ranges>
#include <iostream>

int main(const int argc, const char *argv[])
{
    for (auto param : std::span(argv, argv + argc) | std::views::transform([](const auto *c_str){ return std::string_view(c_str); })) {
        std::cout << param;
    }
}

[JohelEGP]

Previous episode's issue: #209.

[LocalSpook]

A way of writing it that avoids the pointer arithmetic with std::views::counted:

#include <ranges>
#include <iostream>

int main(const int argc, const char *argv[])
{
    for (std::string_view param : std::views::counted(argv, argc)) {
        std::cout << param;
    }
}

(Check that codegen is identical on Compiler Explorer)