tmp/tmpdul83t8f/{from.md → to.md}
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#### Canonical <a id="fs.op.canonical">[[fs.op.canonical]]</a>
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``` cpp
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path canonical(const path& p, const path& base = current_path());
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path canonical(const path& p, error_code& ec);
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path canonical(const path& p, const path& base, error_code& ec);
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```
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*Effects:* Converts `p`, which must exist, to an absolute path that has
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no symbolic link, *dot*, or *dot-dot* elements in its pathname in the
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generic format.
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*Returns:* A path that refers to the same file system object as
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`absolute(p, base)`. For the overload without a `base` argument, `base`
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is `current_path()`. Signatures with argument `ec` return `path()` if an
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error occurs.
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*Throws:* As specified in [[fs.err.report]].
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*Remarks:* `!exists(p)` is an error.
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