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[fs.path.compare]
# 31 Input/output library [[input.output]](./#input.output)
## 31.12 File systems [[filesystems]](filesystems#fs.path.compare)
### 31.12.6 Class path [[fs.class.path]](fs.class.path#fs.path.compare)
#### 31.12.6.5 Members [[fs.path.member]](fs.path.member#fs.path.compare)
#### 31.12.6.5.8 Compare [fs.path.compare]
[🔗](#lib:compare,path)
`int compare(const path& p) const noexcept;
`
[1](#1)
[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/iostreams.tex#L14805)
*Returns*:
- [(1.1)](#1.1)
Let rootNameComparison be the result of this->root_name().native().compare(p.root_name().native())[.](#1.1.sentence-1)
If rootNameComparison is not 0, rootNameComparison[.](#1.1.sentence-2)
- [(1.2)](#1.2)
Otherwise, if !this->has_root_directory() and p.has_root_directory(),
a value less than 0[.](#1.2.sentence-1)
- [(1.3)](#1.3)
Otherwise, if this->has_root_directory() and !p.has_root_directory(),
a value greater than 0[.](#1.3.sentence-1)
- [(1.4)](#1.4)
Otherwise, if native() for the elements of this->relative_path() are lexicographically less than native() for the elements of p.relative_path(),
a value less than 0[.](#1.4.sentence-1)
- [(1.5)](#1.5)
Otherwise, if native() for the elements of this->relative_path() are lexicographically greater than native() for the elements of p.relative_path(),
a value greater than 0[.](#1.5.sentence-1)
- [(1.6)](#1.6)
Otherwise, 0[.](#1.6.sentence-1)
[🔗](#lib:compare,path_)
`int compare(const string_type& s) const;
int compare(basic_string_view<value_type> s) const;
int compare(const value_type* s) const;
`
[2](#2)
[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/iostreams.tex#L14846)
*Effects*: Equivalent to: return compare(path(s));