std::filesystem::path::generic_string, std::filesystem::path::generic_wstring, std::filesystem::path::generic_u8string, std::filesystem::path::generic_u16string, std::filesystem::path::generic_u32string (original) (raw)
| template< class CharT, class Traits = std::char_traits<CharT>, class Alloc = std::allocator<CharT> > std::basic_string<CharT,Traits,Alloc> generic_string( const Alloc& a = Alloc() ) const; | (1) | (since C++17) |
|---|---|---|
| (2) | (since C++17) | |
| std::string generic_string() const; | ||
| std::wstring generic_wstring() const; | ||
| std::u16string generic_u16string() const; | ||
| std::u32string generic_u32string() const; | ||
| (3) | ||
| std::string generic_u8string() const; | (since C++17) (until C++20) | |
| std::u8string generic_u8string() const; | (since C++20) |
Returns the internal pathname in generic pathname format, converted to specific string type. Conversion, if any, is specified as follows:
- If
path::value_typeis char, conversion, if any, is system-dependent. This is the case on typical POSIX systems (such as Linux), where native encoding is UTF-8 andstring()performs no conversion. - Otherwise, if
path::value_typeis wchar_t, conversion, if any, is unspecified. This is the case on Windows, where wchar_t is 16 bit and the native encoding is UTF-16. - Otherwise, if
path::value_typeis char16_t, native encoding is UTF-16 and the conversion method is unspecified. - Otherwise, if
path::value_typeis char32_t, native encoding is UTF-32 and the conversion method is unspecified. - Otherwise, if
path::value_typeis char8_t, native encoding is UTF-8 and the conversion method is unspecified.
The / character is used as the directory separator.
All memory allocations are performed by a.
The result encoding in the case of
u8string()is always UTF-8.
[edit] Parameters
| a | - | allocator to construct the string with |
|---|---|---|
| Type requirements | ||
| -CharT must be one of the encoded character types (char, wchar_t, char8_t(since C++20), char16_t and char32_t). |
[edit] Return value
The internal pathname in generic pathname format, converted to specified string type.
[edit] Exceptions
May throw implementation-defined exceptions.
[edit] Example
Possible output:
"/家/屋" string : 2F E5 AE B6 2F E5 B1 8B u8string : 2F E5 AE B6 2F E5 B1 8B u16string : 2F 00 B6 5B 2F 00 4B 5C u32string : 2F 00 00 00 B6 5B 00 00 2F 00 00 00 4B 5C 00 00 wstring : 2F 00 00 00 B6 5B 00 00 2F 00 00 00 4B 5C 00 00