[libc-commits] [libc] [libc] implement `sys/uio/readv` (PR #124718)

[via libc-commits]

c8ef wrote:

> We might want to use EXPECT_THAT, such that we always call `unlink` even if prior assertions fail, but open with O_CREAT may make that less of an issue. It might be more helpful for us one day to register an at exit helper to clean up any temp files, for use from unit tests.

Using an exit helper is a great idea. I will remember to use this approach in the future!

https://github.com/llvm/llvm-project/pull/124718