29 Input/output library [input.output]

29.11 File systems [filesystems]

29.11.7 Class path [fs.class.path]

29.11.7.4 Members [fs.path.member]

29.11.7.4.5 Modifiers [fs.path.modifiers]

🔗
void clear() noexcept;
1
#
Postconditions: empty() == true.
🔗
path& make_preferred();
2
#
Effects: Each directory-separator of the pathname in the generic format is converted to preferred-separator.
3
#
Returns: *this.
4
#
[Example
: 
path p("foo/bar");
std::cout << p << '\n';
p.make_preferred();
std::cout << p << '\n';
On an operating system where preferred-separator is a slash, the output is: 
"foo/bar"
"foo/bar"
On an operating system where preferred-separator is a backslash, the output is: 
"foo/bar"
"foo\bar"
— end example
]
🔗
path& remove_filename();
5
#
Effects: Remove the generic format pathname of filename() from the generic format pathname.
6
#
Postconditions: !has_­filename().
7
#
Returns: *this.
8
#
[Example
: 
path("foo/bar").remove_filename();      // yields "foo/"
path("foo/").remove_filename();         // yields "foo/"
path("/foo").remove_filename();         // yields "/"
path("/").remove_filename();            // yields "/"
— end example
]
🔗
path& replace_filename(const path& replacement);
9
#
Effects: Equivalent to: 
remove_filename();
operator/=(replacement);
10
#
Returns: *this.
11
#
[Example
: 
path("/foo").replace_filename("bar");   // yields "/bar" on POSIX
path("/").replace_filename("bar");      // yields "/bar" on POSIX
— end example
]
🔗
path& replace_extension(const path& replacement = path());
12
#
Effects:
  • (12.1)
    Any existing extension() ([fs.path.decompose]) is removed from the pathname in the generic format, then
  • (12.2)
    If replacement is not empty and does not begin with a dot character, a dot character is appended to the pathname in the generic format, then
  • (12.3)
    operator+=(replacement);.
13
#
Returns: *this.
🔗
void swap(path& rhs) noexcept;
14
#
Effects: Swaps the contents (in all formats) of the two paths.
15
#
Complexity: Constant time.