31 Input/output library [input.output]

31.12 File systems [filesystems]

31.12.6 Class path [fs.class.path]

31.12.6.8 Non-member functions [fs.path.nonmember]

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void swap(path& lhs, path& rhs) noexcept;
1
#
Effects: Equivalent to lhs.swap(rhs).
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size_t hash_value(const path& p) noexcept;
2
#
Returns: A hash value for the path p.
If for two paths, p1 == p2 then hash_value(p1) == hash_value(p2).
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friend bool operator==(const path& lhs, const path& rhs) noexcept;
3
#
Returns: lhs.compare(rhs) == 0.
4
#
[Note 1: 
Path equality and path equivalence have different semantics.
  • (4.1)
    Equality is determined by the path non-member operator==, which considers the two paths' lexical representations only.
    [Example 1: 
    path("foo") == "bar" is never true.
    — end example]
  • (4.2)
    Equivalence is determined by the equivalent() non-member function, which determines if two paths resolve ([fs.class.path]) to the same file system entity.
    [Example 2: 
    equivalent("foo", "bar") will be true when both paths resolve to the same file.
    — end example]
— end note]
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friend strong_ordering operator<=>(const path& lhs, const path& rhs) noexcept;
5
#
Returns: lhs.compare(rhs) <=> 0.
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friend path operator/(const path& lhs, const path& rhs);
6
#
Effects: Equivalent to: return path(lhs) /= rhs;