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Try to add C++17 `template < class U = T > constexpr optional( U&& value )` constructor #1

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boris-kolpackov opened this issue Oct 4, 2022 · 0 comments

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boris-kolpackov commented Oct 4, 2022 •

edited by karen-arutyunov

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In particular, this constructor would allow the following natural code:

auto add = [&options] (string o, optional<string> v = {})
{
  ...
};

add ("-usb");
add ("-device", "usb-kbd");

Note: propagate to libbutl.

The text was updated successfully, but these errors were encountered:

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