@martinmoene thanks!

I'm playing a bit with the new constructor (as of commit 052dad8) and I'm getting a strange error with GCC 11.2 (with -std=c++14)

.../detail/nonstd/span-lite.hpp: In instantiation of ‘constexpr nonstd::span_lite::span<T, Extent>::span(std::initializer_list<typename std::remove_cv<_Functor>::type>) [with long unsigned int U = 18446744073709551615; typename std::enable_if<(U == nonstd::span_lite::dynamic_extent), int>::type <anonymous> = 0; T = const unsigned char; long unsigned int Extent = 18446744073709551615; typename std::remove_cv<_Functor>::type = unsigned char]’:
.../detail/nonstd/span-lite.hpp:1088:26: error: initializing ‘nonstd::span_lite::span<const unsigned char>::data_’ from ‘std::initializer_list<unsigned char>::begin’ does not extend the lifetime of the underlying array [-Werror=init-list-lifetime]
 1088 |         : data_( il.begin() )
      |                  ~~~~~~~~^~

My code looks like this:

const Foo& getFoo()
{
  static const Foo foo({'b', 'a', 'r'});
  return foo;
}

And class Foo has a constructor that takes a span<const uint8_t> and makes a copy of its content.

Curiously, make_span doesn't trigger the error (but I have to specify the type):

const Foo& getFoo()
{
  static const Foo foo(make_span<uint8_t>({'b', 'a', 'r'}));
  return foo;
}

Consider implementing P2447 #74

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