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authorbors <bors@rust-lang.org>2016-04-12 10:12:55 -0700
committerbors <bors@rust-lang.org>2016-04-12 10:12:55 -0700
commita4f781e47710d8c938130446bf4cd5e9be2231d2 (patch)
tree14c792420a3b1405b59acf413a57b54eef1bf2f6 /src/libsyntax/errors
parent933000613b7774727dd7f1bfe766e2bee71c5747 (diff)
parentbcbc9e5346941011f36f71f66c808675b263a589 (diff)
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Auto merge of #31963 - barosl:rename-doc, r=alexcrichton
Describe more platform-specific behaviors of `std::fs::rename`

I did some tests myself regarding the situation when both `from` and `to` exist, and the results were:

On Linux:

`from` | `to` | Result
---- | ---- | ----
Directory | Directory | Ok
Directory | File | Error
File | Directory | Error
File | File | Ok

On Windows:

`from` | `to` | Result
---- | ---- | ----
Directory | Directory | Error
Directory | File | Ok
File | Directory | Error
File | File | Ok

This is a bit against the official MSDN documentation, which says "(`MOVEFILE_REPLACE_EXISTING`) cannot be used if `lpNewFileName` or `lpExistingFileName` names a directory." As evidenced above, `lpExistingFileName` *can* be a directory.

I also mentioned the atomicity of the operation.

Fixes #31301.
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