Re: [PATCH] libstdc++: add initializer_list constructor to std::span (P2447)

[Giuseppe D'Angelo]

On 11/12/2024 21:41, Jonathan Wakely wrote:

Hmm, the warning is useful if somebody does:

std::span s({1,2,3});

So I think we do want the warning, but maybe give it a special case so
it doesn't warn for an rvalue std::span.

Do you have anything in mind to make this work?

Note that the above is akin to:

std::vector<int> getVector();
std::span<const int> sp = getVector();


which is also similar to:

std::string getString();
std::string_view sv = getString();


and none of these warn at the moment.

Thank you,
--
Giuseppe D'Angelo

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