Use stdio in UWP apps

[ChrisDenton]

Fixes #103233

This has been supported since Windows 10.0.16299. See https://learn.microsoft.com/en-us/uwp/win32-and-com/win32-apis#apis-from-api-ms-win-core-console-l1-1-0dll

[rustbot]

r? @ChrisDenton

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[ChrisDenton]

r? thomcc

[ChrisDenton]

Oh lol, I check on uwp but not on non-uwp.

[thomcc]

What version of Windows do we require for UWP?

[ChrisDenton]

Eh, we don't. It's a tier 3 target with nobody really responsible for it.

[thomcc]

Oh, it is tier 3. I thought it was 2 for some reason.

[thomcc]

So, this extremely owns, and it's great to clean up that cruft. I'm a bit hesitant about deciding to change the supported version of UWP without any other sign-off. Do we have any idea what the supported version was before this?

[ChrisDenton]

I don't think the supported version was ever defined. It was added way before the current target tier policy. I think its continued support relies on it either being low maintenance or some people coming along who are committing to support a UWP target (which is increasingly unlikely since the reports of its demise). Windows 10 1709 (which is what SDK 10.0.16299 targets) is already out of support so I personally don't think we should worry about it for a tier 3 target.

Though if you'd rather this be discussed more widely within libs or other teams I'm certainly not opposed.

[thomcc]

Hm, seems fair to me. Tier 3 target where we never defined the official support and the new version is still old enough that the OS vendor no longer supports it seems unlikely to cause issues. This simplifies the code a lot, which is really worthwhile for a target like that.

@bors r+

[bors]

📌 Commit 5857c30 has been approved by thomcc

It is now in the queue for this repository.