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Clarify Error::last_os_error can be weird #106964

Merged
merged 2 commits into from
Mar 23, 2023
Merged

Clarify Error::last_os_error can be weird #106964

merged 2 commits into from
Mar 23, 2023

Commits on Jan 17, 2023

  1. Explain the "no-error" io::Error case 

    Fundamentally, querying the OS for error codes is a process
that is deeply subject to the whims of chance and fortune.
We can account for OS, but not for every combination of platform APIs.
A compiled binary may not recognize new errors introduced years later.
We should clarify a few especially odd situations, and what they mean:
We can effectively promise nothing.

This allows removing mention of ErrorKind::Uncategorized.
That error variant is hidden quite deliberately, so we
should not explicitly mention it.
    @workingjubilee
    workingjubilee committed Jan 17, 2023
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Commits on Mar 17, 2023

  1. Remove irrelevant docs on error kinds

    @workingjubilee
    workingjubilee committed Mar 17, 2023
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