tmp/tmp6lvsk_dw/{from.md → to.md}
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#### Last write time <a id="fs.op.last_write_time">[[fs.op.last_write_time]]</a>
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``` cpp
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file_time_type last_write_time(const path& p);
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file_time_type last_write_time(const path& p, error_code& ec) noexcept;
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```
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*Returns:* The time of last data modification of `p`, determined as if
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by the value of the POSIX `stat` structure member `st_mtime` obtained as
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if by POSIX `stat()`. The signature with argument `ec` returns
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`file_time_type::min()` if an error occurs.
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*Throws:* As specified in [[fs.err.report]].
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``` cpp
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void last_write_time(const path& p, file_time_type new_time);
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void last_write_time(const path& p, file_time_type new_time,
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error_code& ec) noexcept;
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```
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*Effects:* Sets the time of last data modification of the file resolved
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to by `p` to `new_time`, as if by POSIX `futimens()`.
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*Throws:* As specified in [[fs.err.report]].
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[*Note 1*: A postcondition of `last_write_time(p) == new_time` is not
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specified since it might not hold for file systems with coarse time
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granularity. — *end note*]
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