30 Input/output library [input.output]

30.10 File systems [filesystems]

30.10.12 Class directory_­entry [fs.class.directory_entry]

30.10.12.2 directory_­entry modifiers [fs.dir.entry.mods]

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void assign(const path& p); void assign(const path& p, error_code& ec);
1
#
Effects: Equivalent to pathobject = p, then refresh() or refresh(ec), respectively.
If an error occurs, the values of any cached attributes are unspecified.
2
#
Throws: As specified in [fs.err.report].
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void replace_filename(const path& p); void replace_filename(const path& p, error_code& ec);
3
#
Effects: Equivalent to pathobject.replace_­filename(p), then refresh() or refresh(ec), respectively.
If an error occurs, the values of any cached attributes are unspecified.
Throws: As specified in [fs.err.report].
🔗
void refresh(); void refresh(error_code& ec) noexcept;
4
#
Effects: Stores the current values of any cached attributes of the file p resolves to.
If an error occurs, an error is reported ([fs.err.report]) and the values of any cached attributes are unspecified.
5
#
Throws: As specified in [fs.err.report].
6
#
[ Note
:
Implementations of directory_­iterator ([fs.class.directory_iterator]) are prohibited from directly or indirectly calling the refresh function since it must access the external file system, and the objective of caching is to avoid unnecessary file system accesses.
— end note
 ]