Section: 22.214.171.124 [fs.op.copy_file] Status: Voting Submitter: Tim Song Opened: 2016-12-17 Last modified: 2018-02-12
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126.96.36.199 [fs.op.copy_file]/4 says that copy_file reports "a file already exists error as specified in [fs.err.report] if" any of several error conditions exist.It's not clear how some of those error conditions, such as !is_regular_file(from), can be sensibly described as "file already exists". Pretty much everywhere else in the filesystem specification just says "an error" without further elaboration.
Priority 2; Jonathan to provide updated wording.
[2018-01-16, Jonathan comments]
I said I'd provide updated wording because I wanted to preserve the requirement that the reported error is "file already exists" for some of the error cases. I no longer think that's necessary, so I think the current P/R is fine. Please note that I don't think new wording is needed.
[ 2018-01-23 Moved to Tentatively Ready after 6 positive votes on c++std-lib. ]
This wording is relative to N4713.
Edit 188.8.131.52 [fs.op.copy_file]/4 as indicated:
bool copy_file(const path& from, const path& to, copy_options options); bool copy_file(const path& from, const path& to, copy_options options, error_code& ec) noexcept;
-4- Effects: As follows:
(4.1) — Report
a file already existserror as specified in 30.11.6 [fs.err.report] if: